[Federal Register Volume 90, Number 241 (Thursday, December 18, 2025)]
[Notices]
[Pages 59205-59223]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-23298]


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DEPARTMENT OF JUSTICE

Antitrust Division


United States et al. v. Constellation Energy Corporation et al.; 
Proposed Final Judgment and Competitive Impact Statement

    Notice is hereby given pursuant to the Antitrust Procedures and 
Penalties Act, 15 U.S.C. 16(b)-(h), that a proposed Final Judgment, 
Stipulation, and Competitive Impact Statement have been filed with the 
United States District Court for the District of Columbia in United 
States of America et al. v. Constellation Energy Corporation et al., 
Civil Action No. 1:25-cv-04235-ABJ. On December 5, 2025, the United 
States filed a Complaint alleging that Constellation Energy 
Corporation's proposed acquisition of Calpine Corporation would violate 
Section 7 of the Clayton Act, 15 U.S.C. 18. The proposed Final 
Judgment, filed at the same time as the Complaint, requires 
Constellation to divest the Calpine electric generating facilities 
listed below.
    In the area operated by the Electric Reliability Council of Texas:
     Jack A. Fusco Energy Center, located southwest of the city 
of Houston, Texas; and
     Calpine's minority ownership interest in the Gregory 
Energy Center, located northeast of the city of Corpus Christi, Texas.
    In the area operated by PJM Interconnection, LLC:
     Bethlehem Energy Center, located in Bethlehem, 
Pennsylvania;
     Edge Moor Energy Center, located in Wilmington, Delaware;
     Hay Road Energy Center, located in Wilmington, Delaware; 
and
     York Energy Center (York 1 and York 2), located southeast 
of the city of York, Pennsylvania.
    A Competitive Impact Statement filed by the United States on 
December 12, 2025, describes the Complaint, the proposed Final 
Judgment, the industry, and the remedies available to private litigants 
who may have been injured by the alleged violation.
    Copies of the Complaint, proposed Final Judgment, and Competitive 
Impact Statement are available for inspection on the Antitrust 
Division's website at http://www.justice.gov/atr and at the Office of 
the Clerk of the United States District Court for the District of 
Columbia. Copies of these materials may be obtained from the Antitrust 
Division upon request and payment of the copying fee set by Department 
of Justice regulations.
    Public comment is invited within 60 days of the date of this 
notice. Such comments, including the name of the submitter, and 
responses thereto, will be posted on the Antitrust Division's website, 
filed with the Court, and, under certain circumstances, published in 
the Federal Register. Comments should be submitted in English and 
directed to Patricia Cororan, Acting Chief, Transportation, Energy & 
Agriculture Section, Antitrust Division, Department of Justice, 450 
Fifth Street NW, Suite 8000, Washington, DC 20530 (email address: 
[email protected]).

Suzanne Morris,
Deputy Director Civil Enforcement Operations, Antitrust Division.

United States District Court for the District of Columbia

    UNITED STATES OF AMERICA, U.S. Department of Justice, Antitrust 
Division, 450 5th Street NW, Suite 8000, Washington, DC 20001, and 
STATE OF TEXAS, Office of the Texas Attorney General, Antitrust 
Division, P.O. Box 12548, Austin, TX 78711, Plaintiffs, v. 
CONSTELLATION ENERGY CORPORATION, 1310 Point Street, Baltimore, MD 
21231, CALPINE CORPORATION, 717 Texas Avenue, Suite 1000, Houston, 
TX 77001, and CPN CS HOLDCO CORP., 717 Texas Avenue, Suite 1000, 
Houston, TX 77001, Defendants.

Case No.: 1:25-cv-04235-ABJ
COMPLAINT

    Constellation Energy Corporation (``Constellation'') seeks to buy 
one of its largest rivals, Calpine Corporation (``Calpine''), in a 
proposed acquisition that would create the largest wholesale power 
generator in the United States with a formidable array of assets. The 
combination of those assets would risk affording Constellation the 
opportunity to profitably raise the price of electricity for millions 
of citizens and businesses in Texas and parts of the mid-Atlantic, 
likely resulting in increased energy costs of more than $100 million 
per year. The United States and the State of Texas bring this suit to 
preserve competition.

I. Introduction

    1. Electricity is an essential resource to people and companies 
across the country.
    Whether storing food in refrigerators, keeping the lights on in 
workplaces, watching a football game, or powering lifesaving support 
systems in hospitals, Americans depend on electricity for almost every 
facet of their daily lives. Demand for electricity is increasing 
rapidly, as the population grows and innovative technologies like cloud 
computing and artificial intelligence rely ever more on energy-
intensive data centers. In Texas, the highest level of electricity 
consumption (so-called ``peak load'') handled by its largest electrical 
grid is expected to increase by 72% from 2024 to 2030. In the 
multistate power grid that includes the mid-Atlantic, summer peak load 
is expected to increase by 3.1% per year over the next decade. Despite 
this rapidly increasing demand, it is challenging to

[[Page 59206]]

add new reliable generation to the nation's power grids.
    2. Consumers and businesses demand instantaneous access to 
electricity to avoid disruption to their lives and work. Demand for 
electricity changes depending on weather and patterns of social and 
business activity that vary with the time of day, day of week, and 
season of year. For example, peak demand may be reached during the 
hottest summer days or coldest winter nights, when air conditioning or 
electric heating are most needed. Lower demand may occur on some 
weekends or major holidays when many businesses are closed. Electricity 
must be produced and delivered in line with this fluctuating demand, 
and electrical grid operators call upon power generators like 
Constellation and Calpine to turn power generation plants on or shut 
them off to balance the supply of electricity with demand.
    3. To determine which plants should be turned on or shut off, and 
how much electricity each plant should produce, the grid operator 
conducts daily and intra-day auctions. These electricity auctions set 
the prices paid to every generation unit. Constellation and Calpine 
compete against each other and against other generators in these 
auctions by submitting offers from each of their individual generation 
units to produce certain amounts of electricity at certain times and 
prices to meet demand. The offers of individual generation units are 
accepted from lowest to highest price until the total amount of 
electricity from the generation units combined satisfies the demand for 
a particular period. The price for the last unit's offer necessary to 
meet real-time demand, referred to as the market-clearing price, sets 
the price paid at that auction for every other individual unit that has 
received an accepted offer.
    4. In other words, the price of electricity is set by the highest 
price offered by the individual power generating unit whose offer is 
accepted. All other generating units with lower offers that had offers 
accepted receive the same market-clearing price for the electricity 
they produce within a given period, despite having offered lower 
prices. Because the same price is paid by all wholesale electricity 
customers, even small price increases driven by one generator's offer 
strategy, executed during specific times throughout the year, can lead 
to market-wide price increases, adding tens or even hundreds of 
millions of dollars annually in increased electricity bills for 
consumers and businesses.
    5. On January 10, 2025, Constellation announced plans to acquire 
Calpine for a net purchase price of $26.6 billion (the 
``Acquisition''). If allowed to proceed, the Acquisition would create 
the largest wholesale electricity generating company in the United 
States.
    6. Constellation and Calpine each sell wholesale electricity to two 
of the nation's major electricity grids, among others. The Electric 
Reliability Council of Texas (``ERCOT'') encompasses most of Texas, and 
PJM Interconnection LLC (``PJM'') includes all or parts of Delaware, 
Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North 
Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and 
the District of Columbia.
    7. The Acquisition would eliminate substantial competition between 
Constellation and Calpine within both of these grids by increasing the 
opportunity for the combined firm to engage profitably in a strategy 
that withholds output from one of its plants, forcing the grid operator 
to call on a higher-cost plant to set the market price. Increasing the 
market-clearing price would benefit the combined firm's plants that 
have had offers accepted, as well as all other active plants in the 
market. The aggregation of Constellation and Calpine's portfolios of 
generation capacity within each of these two grids confers more 
opportunities for the combined firm to engage profitably in 
anticompetitive withholding that would raise wholesale electricity 
prices within those grids.
    8. In short, the Acquisition would eliminate competition between 
Constellation and Calpine, thereby increasing Constellation's ability 
and incentive to anticompetitively withhold electricity to raise 
wholesale electricity prices beyond what either company could do today 
as independent competitors. A successful withholding strategy could 
result in increased retail electricity prices paid by tens of millions 
of residential, commercial, and industrial customers across Texas and 
the area that includes southeastern Pennsylvania, New Jersey, Delaware, 
and the eastern shores of Maryland and Virginia.

II. The Defendants

    9. Constellation is a Pennsylvania corporation headquartered in 
Baltimore, Maryland. Constellation is one of the largest competitive 
electric generation companies in the nation, as measured by owned and 
contracted megawatts.
    10. In ERCOT, Constellation owns or exercises control over two 
combined-cycle natural gas plants and one steam turbine plant. In 
addition, it has a 44% interest in the South Texas Project nuclear 
plant and two wind farms. Constellation's combination of nuclear, wind, 
and natural gas electricity power plants collectively have the capacity 
to generate approximately 5,000 megawatts (MW) of electricity in Texas. 
(For context, one megawatt serves between 800 to 1,000 homes.)
    11. In PJM, Constellation owns or exercises control over 25 total 
plants and has a partial ownership interest in three. This includes 
combined-cycle natural gas plants, nuclear plants, coal plants, oil 
plants, and solar and wind renewals. These plants collectively provide 
more than 20,000 MW of electric capacity across PJM.
    12. Calpine is a Delaware corporation headquartered in Houston, 
Texas. Calpine is the largest generator of electricity from natural gas 
and geothermal resources in the United States.
    13. In ERCOT, Calpine owns or exercises control over 13 combined-
cycle plants and one combustion turbine natural gas plant. In addition, 
Calpine is constructing another combustion turbine natural gas plant 
expected to come online in 2026 and holds a 28% interest in one 
additional operating combined-cycle natural gas plant. Calpine's power 
plants collectively have the capacity to generate approximately 9,000 
MW of electricity, making it the third-largest electricity generation 
supplier in the state.
    14. In PJM, Calpine owns or exercises control over 14 total plants, 
including natural gas plants, oil plants, and solar facilities. These 
plants collectively provide more than 5,000 MW of electric capacity.
    15. CPN CS Holdco Corp. (``Holdco'') is a Delaware corporation 
headquartered in Houston, Texas and a direct wholly owned subsidiary of 
Calpine. Calpine created Holdco as a vehicle for its sale to 
Constellation.

III. How Electricity Is Generated and Sold

A. Wholesale Electricity

    16. Electricity supplied to retail customers is produced at power 
plants. Wholesale electricity is electricity that is generated for 
``sale for resale'' to utilities or retail electric providers that in 
turn resell it to end consumers, such as households and businesses. 
Power plants often contain several individual generating units that 
transform energy from fuel or a renewable resource into electricity. 
Important generating technologies in these units include steam 
turbines, combustion turbines,

[[Page 59207]]

and combined-cycle turbines powered by natural gas, oil, or coal, as 
well as nuclear reactors, wind turbines, and solar panels.
    17. Generating units vary considerably in their operating costs, 
which are determined primarily by the cost of fuel and how efficiently 
that fuel can be converted into electricity.
     Renewable units, such as solar farms and wind turbines, 
have very low operating costs, but can operate only when the sun is 
shining or the wind is blowing.
     Baseload units, such as nuclear plants and some coal-fired 
steam turbine units, also have relatively low operating costs and 
provide consistent generation throughout the day and across each season 
of the year. Nuclear plants are designed to operate at full capacity 
unless they are offline for refueling outages. For many coal units, it 
is impractical to turn them on and off on a short-term basis because of 
long startup times and mechanical stress from cycling the units on and 
off.
     Mid-merit units, such as combined-cycle natural gas units 
and some coal steam turbines, can typically be turned on or have their 
output adjusted more quickly than baseload units.
     Peaking units, such as oil- and gas-fired combustion or 
gas-fired steam turbine units, tend to run only during periods of high 
(or ``peak'') electricity demand. They typically have the highest 
operating costs of any generation units but are also the easiest to 
turn on and shut off. This makes them critical for balancing supply and 
demand to keep the lights on without overloading the system.
    18. Electricity generated at a plant is transported via an 
extensive set of interconnected high voltage lines and equipment, known 
as the transmission grid, to lower voltage distribution lines that 
relay electricity to homes and businesses. Transmission grid operators 
closely monitor the grid to prevent too little or too much electricity 
from flowing over the grid, either of which can risk widespread 
blackouts through damage to the lines, equipment, or generating units 
connected to the grid. To avoid damage and service interruptions, grid 
operators manage a grid to prevent additional electricity from flowing 
over a transmission line as that line approaches its operating limit (a 
``transmission constraint'').

B. The Electric Reliability Council of Texas

    19. ERCOT is an independent system operator that serves as the 
electricity grid and market operator for most of Texas. This means it 
manages the purchase of wholesale electricity from Constellation, 
Calpine, and their competitors, as well as the resale and transmission 
of that electricity to utilities and retail electric providers that 
directly serve end customers.
    20. ERCOT is a membership-based nonprofit corporation subject to 
oversight by the Public Utility Commission of Texas. Its members 
include consumers, cooperatives, generators, power marketers, retail 
electricity providers, investor-owned electric utilities, transmission 
and distribution providers, and municipally owned electric utilities.

C. PJM Interconnection

    21. PJM is a regional transmission organization that manages the 
wholesale electricity market and transmission grid that supplies 
electricity to all or parts of Delaware, Illinois, Indiana, Kentucky, 
Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, 
Tennessee, Virginia, West Virginia, and the District of Columbia.
    22. PJM is a private, nonprofit organization whose members include 
transmission line owners, generation owners, distribution companies, 
retail customers, and retail electricity suppliers.
    23. PJM manages the largest transmission grid in the United States, 
which provides electricity to more than 67 million people. Each year, 
PJM is responsible for overseeing more than $25 billion in wholesale 
electricity sales.

D. ERCOT and PJM Use Auctions To Set the Price of Electricity

    24. ERCOT and PJM each oversee two auctions to set the price of 
wholesale electricity and ensure there is enough supply to meet demand 
in their respective parts of the country. The first is a ``day-ahead'' 
auction that sets hourly prices for the next day, and the second is a 
``real-time'' auction that sets prices for each five-minute interval 
throughout the operating day to reflect changing demand for electricity 
at specific times. In both auctions, competing generators, including 
Constellation and Calpine, submit offers for each of their generation 
units to sell electricity to electricity retailers at a specific price. 
These offers are the primary means by which electricity generators 
compete to supply electricity in ERCOT and PJM and drive the price 
consumers ultimately pay for it.
    25. In the day-ahead auctions, each buyer typically submits a bid 
to ERCOT or PJM that identifies the amount of electricity that the 
buyer expects to need for each hour of the next day. ERCOT or PJM then 
adds up the bids to determine how much total electricity is expected to 
be demanded by buyers each hour. Each generator offering electricity in 
the day-ahead market (such as Constellation and Calpine) submits an 
offer to sell electricity to ERCOT or PJM that indicates, for each 
generating unit, the amount of electricity it is willing to sell the 
next day and the price at which it is willing to sell.
    26. Subject to the physical limitations of their transmission 
grids, ERCOT and PJM seek to ``dispatch'' generating units, that is, to 
call on them to generate electricity in ``merit'' order, meaning from 
lowest offer price to highest. In the day-ahead auction, subject to 
expected transmission constraints, ERCOT and PJM take the least 
expensive offer first and then accept offers at progressively higher 
prices until the needs for each hour of the next day are covered. This 
minimizes the total cost of generating the electricity required for the 
next day. The clearing price for any given hour is determined by the 
generating unit with the highest offer price that is needed for that 
hour. All other sellers for that hour receive that identical price 
regardless of the individual unit's own offer price or costs. So, a 
generating unit that offers a lower price to ERCOT or PJM is paid the 
higher clearing price if electricity from additional, higher-priced 
generating units is needed to meet demand.
    27. The real-time auctions reconcile the outcome of the day-ahead 
auctions with actual supply and demand. ERCOT and PJM follow the same 
auction mechanism as in the day-ahead auctions, by accepting sellers' 
offers in merit order, subject to the physical and/engineering 
limitations of the transmission grid, until there is enough electricity 
to meet actual demand. In the real-time auctions, however, ERCOT and 
PJM set prices for each five-minute interval of the day.
    28. Transmission constraints sometimes affect PJM's merit order. 
When the lowest- cost generation cannot be dispatched because it would 
overload a transmission constraint, it is called ``congestion.'' To 
avoid congestion while still satisfying demand, PJM must call on 
higher-priced units that, given their location on the grid, do not 
overload transmission constraints. When this happens, prices are lower 
on one side of the constraint and higher on the other side. In other 
words, when the capacity of the transmission lines connecting two 
regions within PJM is reached so that electricity cannot flow from one 
region to another, the demand within each region has to be met by 
electricity that

[[Page 59208]]

is generated within that region. In these situations, competition and 
thus pricing can be different across the different regions within PJM.

IV. The Relevant Markets for Evaluating the Proposed Acquisition

A. Wholesale Electricity Is a Relevant Product Market

    29. Wholesale electricity is a relevant product market for 
evaluating the potential competitive impact of the Acquisition. And 
each hourly increment in which wholesale electricity is sold in ERCOT's 
or PJM's ``day-ahead'' auction, as well as each five-minute increment 
in the ERCOT or PJM ``real-time'' auctions, constitutes a separate 
relevant product market. This is because electricity available in one 
time period is not a substitute for electricity available in another 
time period (notwithstanding the ability to use batteries to some 
extent to transfer electricity from one time period to another). While 
supply and demand for wholesale electricity can vary in different 
periods, both auctions share a common feature: in the event of a small 
but significant non-transitory increase in the price of wholesale 
electricity at relevant times, not enough purchasers are likely to 
switch away from wholesale electricity to make that increase 
unprofitable. Additionally, in the event of a small but significant 
non-transitory increase in the price of wholesale electricity within an 
hourly or five-minute interval, not enough purchasers would switch to 
consuming wholesale electricity in a different time period to make that 
price increase unprofitable. This means that each of these specific 
auction time intervals markets is a relevant product market and a 
``line of commerce'' within the meaning of Section 7 of the Clayton 
Act.
    30. While each of these specific time intervals is a relevant 
product market, they can be aggregated into a ``cluster market'' for 
analytical convenience for considering whether the Acquisition violates 
the antitrust laws. For example, all 24 hours in a single day in either 
PJM or ERCOT's ``day-ahead'' auction could be aggregated into one 
market, as could all five-minute intervals in a single hour in PJM or 
ERCOT's ``real-time'' auction. Separate cluster markets could also be 
created for periods of time that exhibit similar market contexts and 
competitive dynamics--for example, summer afternoons or winter nights.

B. ERCOT Is a Relevant Geographic Market

    31. The region covered by ERCOT is a relevant geographic market for 
evaluating the potential competitive impact of Constellation's purchase 
of Calpine and a ``section of the country'' within the meaning of 
Section 7 of the Clayton Act. ERCOT serves more than 27 million Texans, 
who collectively account for about 90% of the state's electricity 
demand. In 2024, ERCOT was responsible for overseeing the sale of more 
than $14.4 billion in wholesale electricity.
    32. In the event of a small but significant non-transitory increase 
in the price of wholesale electricity within ERCOT, not enough 
purchasers in the ERCOT region are likely to switch to purchasing from 
regions outside ERCOT to make that increase unprofitable. At its annual 
peak, electricity demand in ERCOT exceeds 85,000 MW. ERCOT's 
connections to Mexico's grid and to the Southwest Power Pool grid, 
which collectively can allow about 1,200 MW of electricity to flow into 
ERCOT, are insufficient to prevent generators from imposing a small but 
significant non-transitory price increase within ERCOT.

C. PJM Coastal Mid-Atlantic Is a Relevant Geographic Market

    33. The PJM Coastal Mid-Atlantic geographic area is a relevant 
geographic market for evaluating the potential competitive impact of 
Constellation's purchase of Calpine and a ``section of the country'' 
within the meaning of Section 7 of the Clayton Act. The PJM Coastal 
Mid-Atlantic geographic area is a distinct area within the PJM region 
that includes southeastern Pennsylvania, New Jersey, Delaware, and the 
eastern shores of Maryland and Virginia. In 2024, approximately $4 
billion of wholesale electricity was generated and supplied to more 
than 10 million people and businesses in PJM Coastal Mid-Atlantic.
    34. PJM Coastal Mid-Atlantic is affected by a major transmission 
constraint located near the Maryland-Pennsylvania border, called 
Nottingham, that divides PJM Coastal Mid-Atlantic from the rest of the 
PJM region. Generators within PJM Coastal Mid-Atlantic frequently sell 
electricity into other areas to the west and south. But when 
transmission lines are constrained, the amount of electricity that 
generators within PJM Coastal Mid-Atlantic can sell outside of the area 
is limited. As a result, electricity prices in PJM Coastal Mid-Atlantic 
often differ from prices in other areas within the PJM region.
    35. When Nottingham is constrained, purchasers of wholesale 
electricity for use in PJM Coastal Mid-Atlantic have limited ability to 
turn to generation originating outside of PJM Coastal Mid-Atlantic. 
During these times, the amount of electricity that purchasers could 
obtain from generators outside PJM Coastal Mid-Atlantic is insufficient 
to deter generators located in PJM Coastal Mid-Atlantic from imposing a 
small but significant non-transitory price increase.

V. The Acquisition Is Reasonably Likely To Raise Electricity Prices

    36. The combination of Constellation and Calpine's electricity 
generating units serving ERCOT and PJM Coastal Mid-Atlantic would 
eliminate competition between them and enhance Constellation's post-
Acquisition ability and incentive to withhold electricity to raise 
wholesale electricity price anticompetitively in those markets.

A. Constellation's Ability and Incentive To Raise Wholesale Electricity 
Price in ERCOT

    37. The Acquisition would increase opportunities for Constellation 
to profitably engage in a withholding strategy that would increase 
wholesale electricity prices in Texas. The Acquisition would almost 
triple Constellation's generation capacity to nearly 14,000 MW in ERCOT 
and add to its Texas portfolio a fleet of gas plants that have 
relatively higher operating costs than Constellation's current fleet. 
Constellation has three gas plants--one steam turbine plant and two 
combined-cycle plants--that total approximately 3,500 MW. It also has a 
44% share in a nuclear plant with a capacity of approximately 2,600 MW 
and owns two small wind generating assets that collectively have about 
170 MW of capacity. Calpine owns or controls 13 combined-cycle gas 
plants in ERCOT and has a minority share in a fourteenth plant that 
together have 9,000 MW of capacity.
    38. The Acquisition would make Constellation the second-largest 
electric generation company in Texas, controlling more than 12% of 
ERCOT's generating capacity and over 20% of the natural gas generation 
capacity in ERCOT that often sets the clearing price. This portfolio of 
gas generation plants represents the ``marginal fuel'': natural gas 
sets the price for all customers in ERCOT the majority of the time, and 
is particularly valuable in ERCOT, where the electricity grid relies on 
gas to complement and support its increasing use of intermittent 
renewable resources such as sun and wind to generate electricity.
    39. The Acquisition would give Constellation a broader portfolio of 
assets that can be turned on and shut off more readily and quickly 
would enable it to more frequently and more

[[Page 59209]]

strategically withhold electricity at lower opportunity costs in order 
to enjoy increased market prices on the other generation units it 
continues to operate. By withholding a unit--or combination of units--
from ERCOT's ``day-ahead'' or ``real-time'' auctions, Constellation 
could force ERCOT to accept an offer from a higher-priced unit. This 
would in turn raise the market-wide price to the benefit of 
Constellation's other units. The additional revenues received by 
Constellation's lower-cost generating unit(s) because of 
anticompetitively higher market-wide prices would frequently more than 
compensate for the lost profits from the generating unit(s) withheld. 
In other words, after the Acquisition, Constellation would be in a 
better position than either it or Calpine are today as independent 
competitors to profit from withholding output and raising the market-
wide price to anticompetitive levels.
    40. Because every other generation unit needed to meet demand in 
ERCOT would also receive the anticompetitively higher market-wide 
prices, the market-wide harm is much greater than simply 
Constellation's increased profits and the harm would be felt across the 
entire region. A small price increase that results in only millions in 
profit to Constellation could result in more than $100 million in harm 
to Texas consumers.

B. Constellation's Ability and Incentive To Raise Wholesale Electricity 
Price in PJM Coastal Mid-Atlantic

    41. The Acquisition would enhance Constellation's ability to 
withhold output and raise the wholesale electricity price in PJM 
Coastal Mid-Atlantic by increasing its ownership of mid-merit and 
peaking units, which can be turned on or shut off more quickly than 
other types of generation assets. The Acquisition would enable 
Constellation to more frequently and more strategically withhold 
generation capacity at lower opportunity costs.
    42. Constellation can withhold capacity in several ways, such as by 
submitting high offers in the PJM auctions for some of the capacity 
from its higher-cost units so that they are not called on to produce 
electricity. By withholding capacity from a unit--or combination of 
units--from PJM's ``day-ahead'' or ``real-time'' auction, Constellation 
could force PJM to accept an offer from a higher-priced unit in order 
to meet demand. This would raise the price in PJM Coastal Mid-Atlantic 
to the benefit of Constellation's other units supplying power to this 
area.
    43. The additional revenues received by Constellation's lower-cost 
generation units, including its nuclear plants, because of 
anticompetitively higher prices in PJM Coastal Mid-Atlantic would more 
than compensate for the lost profits from the generating unit(s) 
withheld. In other words, after the Acquisition, Constellation would be 
in a better position than either it or Calpine is today as an 
independent competitor to profit from reducing output and raising the 
wholesale electricity price in PJM Coastal Mid-Atlantic.
    44. Increasing Constellation's incentive and ability to profitably 
withhold capacity for PJM Coastal Mid-Atlantic increases the likelihood 
that Constellation will exercise market power after its acquisition of 
Calpine.

VI. Potential Entry Would Not Offset Anticompetitive Effects

    45. Entry into wholesale electricity markets by building new 
generation capacity in either ERCOT or PJM Coastal Mid-Atlantic 
requires significant capital investment in generating equipment, 
infrastructure, and technology, and generally takes many years, 
considering the necessary environmental, safety, zoning, and regulatory 
approvals.
    46. In both ERCOT and PJM Coastal Mid-Atlantic, recent supply chain 
dynamics and rising inflation have made it more difficult and expensive 
for companies to procure transformers and turbines to build gas-fired 
generation plants. Furthermore, the anticipated increase in electricity 
demand (e.g., to power AI data centers as well as population growth and 
increased economic activity) has led to long queues for the delivery of 
new gas turbines, so that new entry is unlikely to be timely.
    47. In PJM, interconnection queue wait times, or the duration from 
initial connection request to commercial operations, have increased 
substantially since the early 2000s. Building new high-voltage 
transmission that would relieve the constraints that limit the flow of 
electricity out of PJM Coastal Mid-Atlantic would also generally take 
many years, and require significant capital investment and multiple 
environmental, safety, zoning, and regulatory approvals.
    48. Entry into wholesale electricity markets in ERCOT and PJM 
Coastal Mid-Atlantic would not be timely, likely, or sufficient in 
magnitude, character, or scope to defeat an anticompetitive price 
increase resulting from the Acquisition.
    49. To the extent that there is new entry, including entry from 
renewable generation units, it will likely lag behind the substantial 
increases in demand projected in ERCOT and PJM Coastal Mid-Atlantic.
    50. Defendants also cannot demonstrate verifiable, merger-specific 
efficiencies sufficient to offset the Acquisition's anticompetitive 
effects.

VII. Jurisdiction and Venue

    51. The United States brings this action pursuant to Section 15 of 
the Clayton Act, as amended, 15 U.S.C. 25, to prevent and restrain 
Defendants from violating Section 7 of the Clayton Act, 15 U.S.C. 18.
    52. The State of Texas brings this action under Section 16 of the 
Clayton Act, 15 U.S.C. 26, as parens patriae on behalf of and to 
protect its general economy and the health and welfare of its residents 
and to prevent and restrain the violation by Defendants of Section 7 of 
the Clayton Act, 15 U.S.C. 18.
    53. Defendants are engaged in interstate commerce and in activities 
substantially affecting interstate commerce. The Court has subject-
matter jurisdiction over this action pursuant to Section 15 of the 
Clayton Act, 15 U.S.C. 25, and 28 U.S.C. 1331, 1337(a), and 1345.
    54. Defendants have consented to venue and personal jurisdiction in 
this judicial district. Venue is therefore proper in this District 
under Section 12 of the Clayton Act, 15 U.S.C. 22, and 28 U.S.C. 
1391(c).

VIII. Violation Alleged

    55. The Acquisition, if it were consummated, likely would lessen 
competition substantially for wholesale electricity in ERCOT and PJM 
Coastal Mid-Atlantic, in violation of Section 7 of the Clayton Act, 15 
U.S.C. 18.
    56. Unless restrained, the Acquisition likely would have the 
following anticompetitive effects, among others:
    (a) Competition in wholesale electricity markets in ERCOT and PJM 
Coastal Mid-Atlantic would be substantially lessened;
    (b) Constellation would wield increased market power in wholesale 
electricity markets in ERCOT and PJM Coastal Mid-Atlantic; and
    (c) Prices for wholesale electricity in ERCOT and PJM Coastal Mid-
Atlantic would increase.

IX. Request for Relief

    57. Plaintiffs request that this Court:
    (a) Adjudge Constellation's proposed acquisition of Calpine to 
violate Section 7 of the Clayton Act, 15 U.S.C. 18;
    (b) Permanently enjoin and restrain Defendants from consummating 
the proposed acquisition of Calpine by

[[Page 59210]]

Constellation or from entering into or carrying out any contract, 
agreement, plan, or understanding, the effect of which would be to 
combine Calpine and Constellation;
    (c) Award the Plaintiffs their costs for this action; and
    (d) Award the Plaintiffs such other and further relief as the Court 
deems just and proper.

Dated: December 5, 2025.

Respectfully submitted,

FOR PLAINTIFF UNITED STATES OF AMERICA:

ABIGAIL A. SLATER
(D.C. Bar #90027189)
Assistant Attorney General

MARK H. HAMER
(D.C. Bar #1048333)
Deputy Assistant Attorney General

RYAN DANKS
Director of Civil Enforcement

GEORGE C. NIERLICH
(D.C. Bar #1004528)
Deputy Director of Civil Enforcement

PATRICIA C. CORCORAN
(D.C. Bar #461905)
Acting Chief, Transportation, Energy & Agriculture Section

KATHERINE CELESTE SPEEGLE
Assistant Chief, Transportation, Energy, & Agriculture Section

CATHERINE R. REILLY
(D.C. Bar #1002308)
Acting Assistant Chief, Transportation, Energy, & Agriculture 
Section

-----------------------------------------------------------------------
JOSEPH CHANDRA MAZUMDAR *
JOHN M. BRIGGS (D.C. Bar #90035937)
J. RICHARD DOIDGE
JEREMY EVANS (D.C. Bar #478097)
WILLIAM M. MARTIN
MICHAEL T. NASH
MICHELLE PARK (D.C. Bar #90005251)
KATHRYN TRINKA (D.C. Bar #90010251)

Trial Attorneys

HENRY C. SU (D.C. Bar #441271)
PAUL J. TORZILLI (D.C. Bar #986767)

Senior Litigation Counsel

United States Department of Justice
Antitrust Division
Transportation, Energy & Agriculture Section
450 Fifth Street NW, Suite 8000
Washington, DC 20530
Telephone: (202) 353-1560
Email: [email protected]

* LEAD ATTORNEY TO BE NOTICED

FOR PLAINTIFF STATE OF TEXAS:

KEN PAXTON
Attorney General

BRENT WEBSTER
First Assistant Attorney General

RALPH MOLINA
Deputy First Assistant Attorney General

AUSTIN KINGHORN
Deputy Attorney General for Civil Litigation

OFFICE OF THE ATTORNEY GENERAL
P.O. Box 12548
Austin, Texas 78711-2548
(512) 936-1162

THOMAS D. YORK
Chief, Antitrust Division

-----------------------------------------------------------------------
COLE PRITCHETT
Assistant Attorney General
Texas State Bar No. 24134376

KATHERINE DANNENMAIER
Assistant Attorney General
Texas State Bar No. 24125093

WILLIAM SHIEBER
Senior Staff Attorney
Texas State Bar No. 24012167

COUNSEL FOR THE STATE OF
    TEXAS

United States District Court for the District of Columbia

    UNITED STATES OF AMERICA and STATE OF TEXAS, Plaintiffs, v. 
CONSTELLATION ENERGY CORPORATION, CALPINE CORPORATION, and CPN CS 
HOLDCO CORP., Defendants.

Case No. 1:25-cv-04235-ABJ

Proposed Final Judgment

    Whereas, Plaintiffs, United States of America and the State of 
Texas (``Texas''), filed their Complaint on December 5, 2025;
    And whereas, Plaintiffs and Defendants, Constellation Energy 
Corporation, Calpine Corporation, and CPN CS Holdco Corp., have 
consented to entry of this Final Judgment without the taking of 
testimony, without trial or adjudication of any issue of fact or law, 
and without this Final Judgment constituting any evidence against or 
admission by any party relating to any issue of fact or law;
    And whereas, Defendants agree to make certain divestitures to 
remedy the loss of competition alleged in the Complaint;
    And whereas, Defendants represent that the divestitures and other 
relief required by this Final Judgment can and will be made and that 
Defendants will not later raise a claim of hardship or difficulty as 
grounds for asking the Court to modify any provision of this Final 
Judgment;
    Now therefore, it is ordered, adjudged, and decreed:

I. Jurisdiction

    The Court has jurisdiction over the subject matter of and each of 
the parties to this action. The Complaint states a claim upon which 
relief may be granted against Defendants under Section 7 of the Clayton 
Act (15 U.S.C. 18).

II. Definitions

    As used in this Final Judgment:
    A. ``Acquirer'' or ``Acquirers'' means the entity or entities 
approved by the United States, in its sole discretion, to which 
Defendants divest any of the Divestiture Assets or with which 
Defendants, after approval by the United States in its sole discretion, 
have entered into definitive contracts to sell any of the Divestiture 
Assets. The word ``Acquirer'' in this Final Judgment may have both 
singular and plural meaning.
    B. ``Calpine'' means Defendant Calpine Corporation, a Delaware 
corporation with its headquarters in Houston, Texas, its successors and 
assigns, and its subsidiaries, divisions, groups, affiliates, 
partnerships, and joint ventures, and their directors, officers, 
managers, agents, and employees.
    C. ``Constellation'' means Defendant Constellation Energy 
Corporation, a Pennsylvania corporation with its headquarters in 
Baltimore, Maryland, its successors and assigns, and its subsidiaries, 
divisions, groups, affiliates, partnerships, and joint ventures, and 
their directors, officers, managers, agents, and employees.
    D. ``CPN'' means Defendant CPN CS Holdco Corp., a Delaware 
corporation headquartered in Houston, Texas and a direct, wholly-owned 
subsidiary of Calpine. Calpine created CPN as a vehicle for its sale to 
Constellation.
    E. ``Divestiture Assets'' means the ERCOT Divestiture Assets and 
the PJM Divestiture Assets.
    F. ``Divestiture Date'' means each date on which the ERCOT 
Divestiture Assets or the PJM Divestiture Assets are divested to an 
Acquirer or Acquirers under this Final Judgment. There may be different 
Divestiture Dates for each of the ERCOT Divestiture Assets and each of 
the PJM Divestiture Assets.
    G. ``ERCOT'' means the Electric Reliability Council of Texas, Inc., 
8000 Metropolis Drive, Building E, Suite 100, Austin, Texas 78744.
    H. ``ERCOT Divestiture Assets'' means all of Defendants' rights, 
titles, and interests in and to all property and assets, tangible and 
intangible, wherever located, relating to or used in connection with 
the generation, dispatch, and offer of electricity from the ERCOT 
Divestiture Facilities, including:
    1. the ERCOT Divestiture Facilities;
    2. all other real property, including fee simple interests, real 
property leasehold interests and renewal rights thereto, improvements 
to real property, and options to purchase any adjoining or other 
property, together with all buildings, facilities, and other 
structures;
    3. all tangible personal property, including fixed assets, 
machinery and manufacturing equipment, tools, vehicles, inventory, 
materials, office equipment and furniture, computer hardware, and 
supplies;

[[Page 59211]]

    4. all contracts, contractual rights, and customer relationships, 
and all other agreements, commitments, and understandings, including 
supply agreements, teaming agreements, and leases, and all outstanding 
offers or solicitations to enter into a similar arrangement;
    5. all contracts, contractual rights, or other agreements, 
commitments, and understandings relating to employment of Relevant 
Personnel who elect employment with an Acquirer pursuant to Paragraph 
IV.J within 180 calendar days of the Divestiture Date;
    6. all licenses, permits, certifications, approvals, consents, 
registrations, waivers, and authorizations, including those issued or 
granted by any governmental organization, and all pending applications 
or renewals;
    7. all equipment associated with connecting to ERCOT (including 
automatic generation control equipment);
    8. all remote start capability or equipment;
    9. all other interests, assets, or improvements;
    10. all records and data, including (a) customer lists, accounts, 
sales, and credit records, (b) production, repair, maintenance, and 
performance records, (c) manuals and technical information Defendants 
provide to their own employees, customers, suppliers, agents, or 
licensees, (d) records and research data relating to historic and 
current research and development activities, including designs of 
experiments and the results of successful and unsuccessful designs and 
experiments, and (e) drawings, blueprints, and designs;
    11. all intellectual property owned, licensed, or sublicensed, 
either as licensor or licensee, including (a) patents, patent 
applications, and inventions and discoveries that may be patentable, 
(b) registered and unregistered copyrights and copyright applications, 
and (c) registered and unregistered trademarks, trade dress, service 
marks, trade names, and trademark applications; and
    12. all other intangible property, including (a) commercial names 
and d/b/a names, (b) technical information, (c) computer software and 
related documentation, know-how, trade secrets, design protocols, 
specifications for materials, specifications for parts, specifications 
for devices, safety procedures (e.g., for the handling of materials and 
substances), quality assurance and control procedures, (d) design tools 
and simulation capabilities, and (e) rights in internet websites and 
internet domain names.
    Provided, however, that the ERCOT Divestiture Assets do not include 
Excluded Assets.
    I. The ``ERCOT Divestiture Facilities'' means:
    1. Jack A. Fusco Energy Center, a natural gas combined cycle plant, 
located at 3440 Lockwood Rd, Richmond, TX 77469, and its contents; and
    2. Calpine's interest in the Gregory Power Plant, a natural gas 
combined cycle plant, located at 4633A TX-361, Gregory, TX 78359.
    J. ``Excluded Assets'' means master parts and services agreements, 
master consulting or professional services agreements, master 
subscription and software licenses and any other assets, rights, or 
properties of Defendants that Defendants use on a corporate-wide basis, 
ERCOT-wide basis, or PJM-wide basis. Any asset, right, or property 
necessary for the Acquirer to operate a Divestiture Asset that is 
transferable within the Defendants' control and not otherwise 
reasonably available to the Acquirer is not an Excluded Asset. The 
United States, in its sole discretion, after consultation with Texas, 
will resolve any disagreement relating to which assets, rights, or 
properties are Excluded Assets.
    K. ``Good Utility Practice'' means any of the applicable practices, 
methods and acts (a) required by Federal Energy Regulatory Commission, 
North American Electric Reliability Council, Mid-Atlantic Area Council, 
PJM, ERCOT, or the successor of any of them, whether or not the party 
whose conduct is at issue is a member thereof, (b) required by 
applicable law or regulation, or (c) any of the practices, methods and 
acts which, in the exercise of reasonable judgment in the light of the 
facts known at the time the decision was made, could have been expected 
to accomplish the desired result at a reasonable cost consistent with 
good business practice, reliability, safety and expedition. ``Good 
Utility Practice'' is not intended to be limited to the optimum 
practice, method, or act to the exclusion of all others, but rather is 
intended to include acceptable practices, methods, or acts generally 
accepted in the region.
    L. ``Including'' means including, but not limited to.
    M. ``Offer'' or ``Offers'' means either (1) an offer to sell energy 
submitted into the PJM Market pursuant to the version of PJM ``Amended 
and Restated Operating Agreement of PJM Interconnection, LLC,'' 
available at www.pjm.com in effect at the time the offer is made, or 
(2) an offer to sell energy submitted into the ERCOT Market pursuant to 
the Real-Time and Day-Ahead Market rules, as defined in the ERCOT Nodal 
Protocols, available at https://www.ercot.com/mktrules/nprotocols/current, in effect at the time the offer is made.
    N. ``PJM'' means PJM Interconnection, LLC, 2750 Monroe Blvd., 
Audubon, Pennsylvania 19403.
    O. ``PJM Divestiture Assets'' means all of Defendants' rights, 
titles, and interests in and to all property and assets, tangible and 
intangible, wherever located, relating to or used in connection with 
the generation, dispatch, and offer of electricity from the PJM 
Divestiture Facilities, including:
    1. the PJM Divestiture Facilities;
    2. all other real property, including fee simple interests, real 
property leasehold interests and renewal rights thereto, improvements 
to real property, and options to purchase any adjoining or other 
property, together with all buildings, facilities, and other 
structures;
    3. all tangible personal property, including fixed assets, 
machinery and manufacturing equipment, tools, vehicles, inventory, 
materials, office equipment and furniture, computer hardware, and 
supplies;
    4. all contracts, contractual rights, and customer relationships, 
and all other agreements, commitments, and understandings, including 
supply agreements, teaming agreements, and leases, and all outstanding 
offers or solicitations to enter into a similar arrangement;
    5. all contracts, contractual rights, or other agreements, 
commitments, and understandings relating to employment of Relevant 
Personnel who elect employment with an Acquirer pursuant to Paragraph 
IV.J within 180 calendar days of the Divestiture Date;
    6. all licenses, permits, certifications, approvals, consents, 
registrations, waivers, and authorizations, including those issued or 
granted by any governmental organization, and all pending applications 
or renewals;
    7. all equipment associated with connecting to PJM (including 
automatic generation control equipment);
    8. all remote start capability or equipment;
    9. all other interests, assets, or improvements;
    10. all records and data, including (a) customer lists, accounts, 
sales, and credit records, (b) production, repair, maintenance, and 
performance records, (c) manuals and technical information Defendants 
provide to their own employees, customers, suppliers, agents, or 
licensees, (d) records and research

[[Page 59212]]

data relating to historic and current research and development 
activities, including designs of experiments and the results of 
successful and unsuccessful designs and experiments, and (e) drawings, 
blueprints, and designs;
    11. all intellectual property owned, licensed, or sublicensed, 
either as licensor or licensee, including (a) patents, patent 
applications, and inventions and discoveries that may be patentable, 
(b) registered and unregistered copyrights and copyright applications, 
and (c) registered and unregistered trademarks, trade dress, service 
marks, trade names, and trademark applications; and
    12. all other intangible property, including (a) commercial names 
and d/b/a names, (b) technical information, (c) computer software and 
related documentation, know-how, trade secrets, design protocols, 
specifications for materials, specifications for parts, specifications 
for devices, safety procedures (e.g., for the handling of materials and 
substances), quality assurance and control procedures, (d) design tools 
and simulation capabilities, and (e) rights in internet websites and 
internet domain names.
    Provided, however, that the PJM Divestiture Assets do not include 
any Excluded Assets.
    P. ``PJM Divestiture Facilities'' means the following facilities 
and their contents:
    1. Bethlehem Energy Center, a natural gas combined cycle plant, 
located at 2254 Applebutter Road, Bethlehem, PA 18015;
    2. York 1 Energy Center, a dual-fuel combined cycle natural gas 
plant, located at 1055 Pikes Peak Road, Delta, PA 17314;
    3. York 2 Energy Center, a dual-fuel combined cycle natural gas 
plant, located at 1597 Atom Road, Delta, PA 17314;
    4. Hay Road Energy Center, a dual-fuel combined cycle natural gas 
plant, located at 198 Hay Road, Wilmington, DE 19809; and
    5. Edge Moor Energy Center, a simple cycle natural gas plant, 
located at 200 Hay Road, Wilmington, DE 19809.
    Q. ``Regulatory Approvals'' means (1) any approvals or clearances 
from the Federal Energy Regulatory Commission or any local, state, or 
other federal regulatory body that are required for the Transaction to 
proceed; and (2) any approvals or clearances from the Federal Energy 
Regulatory Commission or any local, state, or other federal regulatory 
body that are required for an Acquirer's acquisition of any Divestiture 
Asset to proceed.
    R. ``Relevant Personnel'' means all full-time, part-time, or 
contract employees of Defendants, wherever located, who as of the date 
of filing this document with the Court are or have been stationed at or 
assigned to a specific Divestiture Asset and are involved in the 
operation of a Divestiture Asset, for the period between the date of 
the filing of this document and the Divestiture Date. The United 
States, in its sole discretion, will resolve any disagreement relating 
to which employees are Relevant Personnel.
    S. ``Transaction'' means Constellation's acquisition of Calpine 
that is the subject of the ``Agreement and Plan of Merger'' between 
Constellation and Calpine dated January 10, 2025.

III. Applicability

    A. This Final Judgment applies to Constellation, Calpine, and CPN, 
as defined above, and all other persons in active concert or 
participation with any Defendant who receive actual notice of this 
Final Judgment.
    B. If, prior to complying with Section IV and Section V of this 
Final Judgment, Defendants sell or otherwise dispose of all or 
substantially all of their assets or of business units that include 
Divestiture Assets, Defendants must require any purchaser to be bound 
by the provisions of this Final Judgment. Defendants need not obtain 
such an agreement from Acquirers.

IV. Divestitures

    A. Defendants are ordered and directed to divest the Divestiture 
Assets in a manner consistent with this Final Judgment to an Acquirer 
or Acquirers acceptable to the United States, in its sole discretion, 
after consultation with Texas. Defendants must enter into a definitive 
contract or contracts for sale of the Divestiture Assets within 240 
calendar days after consummation of the Transaction. The United States, 
in its sole discretion, may grant up to two thirty (30) day extensions 
of this time period, not to exceed sixty (60) calendar days in total, 
and will notify the Court in such circumstances. Defendants must seek 
Regulatory Approvals within five calendar days after the United States 
provides written notice pursuant to Paragraph VI.C. that it does not 
object to the proposed Acquirer or Acquirers. Defendants must divest 
the relevant Divestiture Assets no later than thirty (30) calendar days 
after receiving, for all of any Acquirer's Divestiture Assets, the last 
necessary Regulatory Approvals required for that Acquirer's Divestiture 
Assets. The United States, in its sole discretion, may grant up to one 
fifteen (15) day extension of this time period, and will notify the 
Court in such circumstances. For the avoidance of doubt, the deadlines 
set forth in this Paragraph apply independently to each set of 
Divestiture Assets (ERCOT Divestiture Assets and PJM Divestiture 
Assets), such that the timing of receipt of Regulatory Approvals 
required for divestiture of one set of Divestiture Assets does not 
provide a basis to delay the divestiture of the other set of 
Divestiture Assets. For the avoidance of doubt, the divestiture of 
assets to a particular Acquirer need only be completed once all 
relevant Regulatory Approvals have been received for all assets to be 
divested to that Acquirer.
    B. For all contracts, agreements, and customer relationships (or 
portions of such contracts, agreements, and customer relationships) 
included in the Divestiture Assets, Defendants must assign or otherwise 
transfer all contracts, agreements, and customer relationships to 
Acquirer or Acquirers within the deadlines for divestiture set forth in 
Paragraph IV.A; provided, however, that for any contract or agreement 
that requires the consent of another party to assign or otherwise 
transfer, Defendants must use best efforts to accomplish the assignment 
or transfer but it may not be a violation of this Final Judgment to 
fail to obtain the required consents. Defendants must not interfere 
with any negotiations between an Acquirer and a contracting party.
    C. Defendants must use best efforts to divest the Divestiture 
Assets as expeditiously as possible. Defendants must take no action 
that would jeopardize the completion of the divestitures ordered by the 
Court, including any action to impede the permitting, operation, or 
divestiture of the Divestiture Assets.
    D. Unless the United States otherwise consents in writing, the 
divestitures pursuant to this Final Judgment must include the entire 
Divestiture Assets and must be accomplished in such a way as to satisfy 
the United States, in its sole discretion, after consultation with 
Texas, that the Divestiture Assets can and will be used by Acquirer or 
Acquirers as part of a viable, ongoing business of electric generation 
services and that divestiture to Acquirer or Acquirers will remedy the 
competitive harm alleged in the Complaint.
    E. The divestitures must be made to one or more Acquirers that, in 
the United States' sole judgment, after consultation with Texas, have 
the intent and capability, including the necessary managerial, 
operational, technical, and financial capability, to compete

[[Page 59213]]

effectively in the business of the provision of electric generation 
services.
    F. The divestitures must be accomplished in a manner that satisfies 
the United States, in its sole discretion, after consultation with 
Texas, that none of the terms of any agreement between an Acquirer and 
Defendants give Defendants the ability unreasonably to raise an 
Acquirer's costs, to lower an Acquirer's efficiency, or otherwise 
interfere in the ability of an Acquirer to compete effectively in the 
provision of electric generation services.
    G. Divestiture of the Divestiture Assets may be made to one or more 
Acquirers, provided that it is demonstrated to the sole satisfaction of 
the United States, after consultation with Texas, that the criteria 
required by Paragraphs IV.D., IV.E., and IV.F. will still be met.
    H. In accomplishing the divestitures ordered by this Final 
Judgment, Defendants promptly must make known, by usual and customary 
means, the availability of the Divestiture Assets, except that, for 
Calpine's interest in the Gregory Power Plant, such notice of 
availability will be subject to any third-party rights under the 
existing partnership agreements relating to the Gregory Power Plant. 
Defendants must inform any person making an inquiry relating to a 
possible purchase of the Divestiture Assets that the Divestiture Assets 
are being divested in accordance with this Final Judgment and must 
provide that person with a copy of this Final Judgment. Defendants must 
offer to furnish to all prospective Acquirers, subject to customary 
confidentiality assurances, all information and documents relating to 
the Divestiture Assets that are customarily provided in a due diligence 
process; provided, however, that Defendants need not provide 
information or documents subject to the attorney-client privilege or 
work-product doctrine. Defendants must make all information and 
documents available to Plaintiffs at the same time that the information 
and documents are made available to any other person.
    I. Defendants must provide prospective Acquirers with (1) access to 
make inspections of the Divestiture Assets; (2) access to all 
environmental, zoning, and other permitting documents and information 
relating to the Divestiture Assets; and (3) access to all financial, 
operational, or other documents and information relating to the 
Divestiture Assets that would customarily be provided as part of a due 
diligence process. Defendants also must disclose all encumbrances on 
any part of the Divestiture Assets, including on intangible property. 
Provided, however, that a prospective Acquirer interested in purchasing 
only one or some of the Divestiture Assets must be provided with (1)-
(3) for only the relevant Divestiture Assets of interest.
    J. Defendants must cooperate with and assist any Acquirer in 
identifying and, at the option of Acquirer, hiring all Relevant 
Personnel, including:
    1. Within 10 business days following receipt of a request by an 
Acquirer or a Plaintiff, Defendants must identify all Relevant 
Personnel to the requesting Acquirer and the Plaintiffs, including by 
providing organization charts covering all Relevant Personnel.
    2. Within 10 business days following receipt of a request by an 
Acquirer or a Plaintiff, Defendants must provide to the requesting 
Acquirer and Plaintiffs additional information relating to Relevant 
Personnel, including name, job title, reporting relationships, past 
experience, responsibilities, training and educational histories, 
relevant certifications, and job performance evaluations. Defendants 
must also provide to a requesting Acquirer and Plaintiffs information 
relating to current and accrued compensation and benefits of Relevant 
Personnel, including most recent bonuses paid, aggregate annual 
compensation, current target or guaranteed bonus, if any, any retention 
agreement or incentives, and any other payments due, compensation or 
benefits accrued, or promises made to the Relevant Personnel. If 
Defendants are barred by any applicable law from providing any of this 
information, Defendants must provide, within 10 business days following 
receipt of the request, the requested information to the full extent 
permitted by law and also must provide a written explanation of 
Defendants' inability to provide the remaining information, including 
specifically identifying the provisions of the applicable laws.
    3. At the request of an Acquirer, Defendants must promptly make 
Relevant Personnel available for private interviews with the requesting 
Acquirer during normal business hours at a mutually agreeable location.
    4. Defendants must not interfere with any effort by an Acquirer to 
employ any Relevant Personnel. Interference includes offering to 
increase the compensation or improve the benefits of Relevant Personnel 
at any time after the date of the filing of this document, unless (a) 
the offer is part of an annual compensation increase or improvement in 
benefits pursuant to the Defendants' compensation and benefit programs 
existing as of December 1, 2025, (b) the offer is part of a tenure-
based, automatic increase in compensation or improvement in benefits, 
(c) the offer is otherwise required pursuant to the terms of collective 
bargaining agreements relating to the Divested Assets, (d) the offer is 
consistent with the terms of the Asset Preservation and Hold Separate 
Stipulation and Order, or (e) the offer is approved by the United 
States in its sole discretion. Defendants' obligations under this 
Paragraph IV.J.4. will expire 150 calendar days after the Divestiture 
Date for the relevant Divestiture Assets.
    5. For Relevant Personnel who elect employment with an Acquirer 
within 150 calendar days of the Divestiture Date for the relevant 
Divestiture Assets, Defendants must waive all non-compete and non-
disclosure agreements; vest and pay to the Relevant Personnel (or to 
Acquirer for payment to the employee) on a prorated basis any bonuses, 
incentives, other salary, benefits, or other compensation fully or 
partially accrued at the time of the transfer of the employee to 
Acquirer; vest any unvested pension and other equity rights; and 
provide all other benefits that those Relevant Personnel otherwise 
would have been provided had the Relevant Personnel continued 
employment with Defendants, including any retention bonuses or 
payments. Defendants may maintain reasonable restrictions on disclosure 
by Relevant Personnel of Defendants' proprietary non-public information 
that is unrelated to the Divestiture Assets and not otherwise required 
to be disclosed by this Final Judgment.
    K. Defendants must warrant to any Acquirer that (1) the Divestiture 
Assets to be divested to that Acquirer will be operational and without 
material defect on the date of their transfer to the Acquirer; (2) the 
Divestiture Assets to be divested to that Acquirer will be consistent 
with Good Utility Practice, subject to legal or regulatory restrictions 
on any of the Divestiture Assets in existence on the date of sale; (3) 
there are no material defects in the environmental, zoning, or other 
permits relating to the operation of the Divestiture Assets to be 
divested to that Acquirer; and (4) Defendants have disclosed all 
material encumbrances on any part of the Divestiture Assets to be 
divested to that Acquirer, including on intangible property. Following 
the sale of any Divestiture Assets, Defendants must not undertake, 
directly or indirectly, challenges to the environmental, zoning, or 
other permits relating to the operation of those Divestiture Assets.
    L. Defendants must use best efforts to assist the Acquirer or 
Acquirers to obtain all necessary licenses,

[[Page 59214]]

registrations, and permits to operate the relevant Divestiture Assets. 
Until an Acquirer obtains the necessary licenses, registrations, and 
permits, Defendants must provide that Acquirer with the benefit of 
Defendants' licenses, registrations, and permits to the full extent 
permissible by law.
    M. If any term of an agreement between Defendants and an Acquirer, 
including an agreement to effectuate any of the divestitures required 
by this Final Judgment, varies from a term of this Final Judgment, to 
the extent that Defendants cannot fully comply with both, this Final 
Judgment determines Defendants' obligations.

V. Appointment of Divestiture Trustee

    A. If Defendants have not divested all of the Divestiture Assets 
within the period specified in Paragraph IV.A., Defendants must 
immediately notify Plaintiffs of that fact in writing. Upon application 
of the United States, which Defendants may not oppose, the Court will 
appoint a divestiture trustee selected by the United States and 
approved by the Court to effect the divestiture of any of the 
Divestiture Assets that have not been sold during the time periods 
specified in Paragraph IV.A.
    B. After the appointment of a divestiture trustee by the Court, 
only the divestiture trustee will have the right to sell those 
Divestiture Assets that the divestiture trustee has been appointed to 
sell. The divestiture trustee will have the power and authority to 
accomplish the divestitures to an Acquirer or Acquirers acceptable to 
the United States, in its sole discretion, after consultation with 
Texas, at a price and on terms obtainable through reasonable effort by 
the divestiture trustee, subject to the provisions of Sections IV, V, 
and VI of this Final Judgment, and will have other powers as the Court 
deems appropriate. The divestiture trustee must sell the Divestiture 
Assets as quickly as possible.
    C. Defendants may not object to a sale by the divestiture trustee 
on any ground other than malfeasance by the divestiture trustee. 
Objections by Defendants must be conveyed in writing to the United 
States and the divestiture trustee within 10 calendar days after the 
divestiture trustee has provided the notice of proposed divestiture 
required by Section VI.
    D. The divestiture trustee will serve at the cost and expense of 
Defendants pursuant to a written agreement, on terms and conditions, 
including confidentiality requirements and conflict of interest 
certifications, approved by the United States in its sole discretion.
    E. The divestiture trustee may hire at the cost and expense of 
Defendants any agents or consultants, including investment bankers, 
attorneys, and accountants, that are reasonably necessary in the 
divestiture trustee's judgment to assist with the divestiture trustee's 
duties. These agents or consultants will be accountable solely to the 
divestiture trustee and will serve on terms and conditions, including 
confidentiality requirements and conflict-of-interest certifications, 
approved by the United States in its sole discretion.
    F. The compensation of the divestiture trustee and agents or 
consultants hired by the divestiture trustee must be reasonable in 
light of the value of the Divestiture Assets and based on a fee 
arrangement that provides the divestiture trustee with incentives based 
on the price and terms of the divestiture and the speed with which it 
is accomplished. If the divestiture trustee and Defendants are unable 
to reach agreement on the divestiture trustee's compensation or other 
terms and conditions of engagement within 14 calendar days of the 
appointment of the divestiture trustee by the Court, the United States, 
in its sole discretion, may take appropriate action, including by 
making a recommendation to the Court. Within three business days of 
hiring an agent or consultant, the divestiture trustee must provide 
written notice of the hiring and rate of compensation to Defendants and 
the United States.
    G. The divestiture trustee must account for all monies derived from 
the sale of the Divestiture Assets by the divestiture trustee and all 
costs and expenses incurred. Within 30 calendar days of the Divestiture 
Date, the divestiture trustee must submit that accounting to the Court 
for approval. After approval by the Court of the divestiture trustee's 
accounting, including fees for unpaid services and those of agents or 
consultants hired by the divestiture trustee, all remaining money must 
be paid to Defendants, and the trust will then be terminated.
    H. Defendants must use best efforts to assist the divestiture 
trustee to accomplish the required divestitures, including best efforts 
to obtain all necessary Regulatory Approvals. Subject to reasonable 
protection for trade secrets, other confidential research, development, 
or commercial information, or any applicable privileges, Defendants 
must provide the divestiture trustee and agents or consultants retained 
by the divestiture trustee with full and complete access to all 
personnel, books, records, and facilities of the Divestiture Assets. 
Defendants also must provide or develop financial and other information 
relevant to the Divestiture Assets that the divestiture trustee may 
reasonably request. Defendants must not take any action to interfere 
with or to impede the divestiture trustee's accomplishment of the 
divestitures.
    I. The divestiture trustee must maintain complete records of all 
efforts made to sell the Divestiture Assets, including by providing 
monthly reports to the Plaintiffs setting forth the divestiture 
trustee's efforts to accomplish the divestitures ordered by this Final 
Judgment. The reports must include the name, address, and telephone 
number of each person who, during the preceding month, made an offer to 
acquire, expressed an interest in acquiring, entered into negotiations 
to acquire, or was contacted or made an inquiry about acquiring any 
interest in the Divestiture Assets and must describe in detail each 
contact.
    J. If the divestiture trustee has not accomplished the divestitures 
ordered by this Final Judgment within 180 calendar days of appointment, 
the divestiture trustee must promptly provide Plaintiffs with a report 
setting forth: (1) the divestiture trustee's efforts to accomplish the 
required divestitures; (2) the reasons, in the divestiture trustee's 
judgment, why the required divestitures have not been accomplished; and 
(3) the divestiture trustee's recommendations for completing the 
divestitures. Following receipt of that report, the United States may 
make additional recommendations to the Court. The Court thereafter may 
enter such orders as it deems appropriate to carry out the purpose of 
this Final Judgment, which may include extending the trust and the term 
of the divestiture trustee's appointment by a period requested by the 
United States.
    K. The divestiture trustee will serve until divestiture of all 
Divestiture Assets is completed or for a term otherwise ordered by the 
Court.
    L. If the United States determines that the divestiture trustee is 
not acting diligently or in a reasonably cost-effective manner, the 
United States may recommend that the Court appoint a substitute 
divestiture trustee.

VI. Notice of Proposed Divestiture

    A. Within two business days following execution of a definitive 
agreement to divest the Divestiture Assets, Defendants or the 
divestiture trustee, whichever is then responsible for effecting the 
divestitures, must

[[Page 59215]]

notify Plaintiffs of the proposed divestiture. If the divestiture 
trustee is responsible for completing the divestiture, the divestiture 
trustee also must notify Defendants. The notice must set forth the 
details of the proposed divestiture and list the name, address, and 
telephone number of each person not previously identified who offered 
or expressed an interest in or desire to acquire any ownership interest 
in the Divestiture Assets.
    B. After receipt of the notice required by Paragraph VI.A., the 
United States, after consultation with Texas, may make one or more 
requests to Defendants or the divestiture trustee for additional 
information concerning the proposed divestiture, the proposed 
Acquirers, and other prospective Acquirers. Defendants and the 
divestiture trustee must furnish any additional information requested 
within 15 calendar days of the receipt of each request unless the 
United States provides written agreement to a different period.
    C. Within 45 calendar days after receipt of the notice required by 
Paragraph VI.A or within 20 calendar days after the United States has 
been provided the additional information requested pursuant to 
Paragraph VI.B, whichever is later, the United States will provide 
written notice to Defendants and any divestiture trustee that states 
whether the United States, in its sole discretion, after consultation 
with Texas, objects to the proposed Acquirers or any other aspect of 
the proposed divestitures. Without written notice that the United 
States does not object, a divestiture may not be consummated. If the 
United States provides written notice that it does not object, the 
divestiture may be consummated, subject only to Defendants' limited 
right to object to the sale under Paragraph V.C. of this Final 
Judgment. Upon objection by Defendants pursuant to Paragraph V.C., a 
divestiture by the divestiture trustee may not be consummated unless 
approved by the Court.

VII. Financing

    Defendants may not finance all or any part of any Acquirer's 
purchase of all or part of the Divestiture Assets.

VIII. Asset Preservation and Hold Separate Obligations

    Defendants must take all steps necessary to comply with the Asset 
Preservation and Hold Separate Stipulation and Order entered by the 
Court.

IX. Affidavits

    A. Within 20 calendar days of entry of the Hold Separate 
Stipulation and Order in this matter, and every 30 calendar days 
thereafter until all divestitures required by this Final Judgment have 
been completed, each Defendant must deliver to Plaintiffs an affidavit, 
signed by each Defendant's Chief Financial Officer and General Counsel, 
describing in reasonable detail the fact and manner of that Defendant's 
compliance with this Final Judgment. The United States, in its sole 
discretion, may approve different signatories for the affidavits.
    B. Each affidavit required by Paragraph IX.A. must include: (1) the 
name, address, and telephone number of each person who, during the 
preceding 30 calendar days, made an offer to acquire, expressed an 
interest in acquiring, entered into negotiations to acquire, or was 
contacted or made an inquiry about acquiring, an interest in the 
Divestiture Assets and describe in detail each contact with such 
persons during that period; (2) a description of the efforts Defendants 
have taken to solicit buyers for and complete the sale of the 
Divestiture Assets and to provide required information to prospective 
Acquirers; and (3) a description of any limitations placed by 
Defendants on information provided to prospective Acquirers. Objection 
by the United States to information provided by Defendants to 
prospective Acquirers must be made within 14 calendar days of receipt 
of the affidavit, except that the United States may object at any time 
if the information set forth in the affidavit is not true or complete.
    C. Defendants must keep all records of any efforts made to divest 
the Divestiture Assets until one year after the Divestiture Date.
    D. Within 20 calendar days of the filing of the Complaint in this 
matter, each Defendant must deliver to Plaintiffs an affidavit signed 
by each Defendant's Chief Financial Officer and General Counsel that 
describes in reasonable detail all actions that Defendant has taken and 
all steps that Defendant has implemented on an ongoing basis to comply 
with Section VIII of this Final Judgment. The United States, in its 
sole discretion, may approve different signatories for the affidavits.
    E. If a Defendant makes any changes to actions and steps described 
in affidavits provided pursuant to Paragraph IX.A, the Defendant must, 
within 15 calendar days after any change is implemented, deliver to 
Plaintiffs an affidavit describing those changes.
    F. Defendants must keep all records of any efforts made to comply 
with Section IX until one year after the Divestiture Date.

X. Compliance Inspection

    A. For the purposes of determining or securing compliance with this 
Final Judgment or of related orders such as the Asset Preservation and 
Hold Separate Stipulation and Order or of determining whether this 
Final Judgment should be modified or vacated, upon written request of 
an authorized representative of the Assistant Attorney General for the 
Antitrust Division and reasonable notice to Defendants, Defendants must 
permit, from time to time and subject to legally recognized privileges, 
authorized representatives, including agents retained by the United 
States:
    1. to have access during Defendants' office hours to inspect and 
copy, or at the option of the United States, to require Defendants to 
provide electronic copies of all books, ledgers, accounts, records, 
data, and documents, wherever located, in the possession, custody, or 
control of Defendants relating to any matters contained in this Final 
Judgment; and
    2. to interview, either informally or on the record, Defendants' 
officers, employees, or agents, wherever located, who may have their 
individual counsel present, relating to any matters contained in this 
Final Judgment. The interviews must be subject to the reasonable 
convenience of the interviewee and without restraint or interference by 
Defendants.
    B. Upon the written request of an authorized representative of the 
Assistant Attorney General for the Antitrust Division, Defendants must 
submit written reports or respond to written interrogatories, under 
oath if requested, relating to any matters contained in this Final 
Judgment.

XI. No Reacquisition

    Defendants may not reacquire any part of or any interest in the 
Divestiture Assets during the term of this Final Judgment without prior 
written authorization of the United States.

XII. Public Disclosure

    A. No information or documents obtained pursuant to any provision 
in this Final Judgment may be divulged by Plaintiffs to any person 
other than an authorized representative of the executive branch of the 
United States or an authorized representative of Texas, except in the 
course of legal proceedings

[[Page 59216]]

to which the United States or Texas are a party, including grand-jury 
proceedings, for the purpose of evaluating a proposed Acquirer or 
securing compliance with this Final Judgment, or as otherwise required 
by law.
    B. In the event of a request by a third party, pursuant to the 
Freedom of Information Act, 5 U.S.C. 552, or similar state disclosure 
laws, for disclosure of information obtained pursuant to any provision 
of this Final Judgment, the United States will act in accordance with 
that statute and the Department of Justice regulations at 28 CFR part 
16, including the provision on confidential commercial information at 
28 CFR 16.7, and Texas will act in accordance with its applicable 
disclosure laws. Defendants submitting information to the Antitrust 
Division or Texas should designate the confidential commercial 
information portions of all applicable documents and information under 
28 CFR 16.7 or the relevant state statute. Designations of 
confidentiality under 28 CFR part 16 expire 10 years after submission, 
``unless the submitter requests and provides justification for a longer 
designation period.'' See 28 CFR 16.7(b).
    C. If at the time that Defendants furnish information or documents 
to the United States or Texas pursuant to any provision of this Final 
Judgment, Defendants represent and identify in writing information or 
documents for which a claim of protection may be asserted under Rule 
26(c)(1)(G) of the Federal Rules of Civil Procedure, and Defendants 
mark each pertinent page of such material, ``Subject to claim of 
protection under Rule 26(c)(1)(G) of the Federal Rules of Civil 
Procedure,'' the United States and Texas must give Defendants 10 
calendar days' notice before divulging the material in any legal 
proceeding (other than a grand jury proceeding).

XIII. Retention of Jurisdiction

    The Court retains jurisdiction to enable any party to this Final 
Judgment to apply to the Court at any time for further orders and 
directions as may be necessary or appropriate to carry out or construe 
this Final Judgment, to modify any of its provisions, to enforce 
compliance, and to punish violations of its provisions.

XIV. Enforcement of Final Judgment

    A. The United States and Texas retain and reserve all rights to 
enforce the provisions of this Final Judgment, including the right to 
seek an order of contempt from the Court. In a civil contempt action, a 
motion to show cause, or a similar action brought by the United States 
or Texas relating to an alleged violation of this Final Judgment, the 
United States or Texas may establish a violation of this Final Judgment 
and the appropriateness of a remedy therefor by a preponderance of the 
evidence, and Defendants waive any argument that a different standard 
of proof should apply.
    B. This Final Judgment should be interpreted to give full effect to 
the procompetitive purposes of the antitrust laws and to restore the 
competition the Plaintiffs allege was harmed by the challenged conduct. 
Defendants may be held in contempt of, and the Court may enforce, any 
provision of this Final Judgment that, as interpreted by the Court in 
light of these procompetitive principles and applying ordinary tools of 
interpretation, is stated specifically and in reasonable detail, 
whether or not it is clear and unambiguous on its face. In any such 
interpretation, the terms of this Final Judgment should not be 
construed against either party as the drafter.
    C. In an enforcement proceeding in which the Court finds that 
Defendants have violated this Final Judgment, the United States may 
apply to the Court for an extension of this Final Judgment, together 
with other relief that may be appropriate. In connection with a 
successful effort by the United States or Texas to enforce this Final 
Judgment against a Defendant, whether litigated or resolved before 
litigation, Defendant must reimburse the United States and Texas for 
the fees and expenses of their attorneys, as well as all other costs 
including experts' fees, incurred in connection with that effort to 
enforce this Final Judgment, including in the investigation of the 
potential violation.
    D. For a period of four years following the expiration of this 
Final Judgment, if the United States has evidence that a Defendant 
violated this Final Judgment before it expired, the United States, may 
file an action against that Defendant in this Court requesting that the 
Court order: (1) Defendant to comply with the terms of this Final 
Judgment for an additional term of at least four years following the 
filing of the enforcement action; (2) all appropriate contempt 
remedies; (3) additional relief needed to ensure the Defendant complies 
with the terms of this Final Judgment; and (4) fees or expenses as 
called for by this Section XIV.

XV. Expiration of Final Judgment

    Unless the Court grants an extension, this Final Judgment will 
expire 10 years from the date of its entry, except that after five 
years from the date of its entry, this Final Judgment may be terminated 
upon notice by the United States to the Court, Defendants, and Texas 
that the divestitures have been completed and continuation of this 
Final Judgment is no longer necessary or in the public interest.

XVI. Public Interest Determination

    Entry of this Final Judgment is in the public interest. The parties 
have complied with the requirements of the Antitrust Procedures and 
Penalties Act, 15 U.S.C. 16, including by making available to the 
public copies of this Final Judgment and the Competitive Impact 
Statement, public comments thereon, and any response to comments by the 
United States. Based upon the record before the Court, which includes 
the Competitive Impact Statement and, if applicable, any comments and 
response to comments filed with the Court, entry of this Final Judgment 
is in the public interest.

Date:------------------------------------------------------------------

[Court approval subject to procedures of Antitrust Procedures and 
Penalties Act, 15 U.S.C. 16]

-----------------------------------------------------------------------
United States District Judge

United States District Court for the District of Columbia

    UNITED STATES OF AMERICA, and STATE OF TEXAS, Plaintiffs, v. 
CONSTELLATION ENERGY CORPORATION, CALPINE CORPORATION, and CPN CS 
HOLDCO CORP., Defendants.

Case No. 1:25-cv-04235-ABJ

Competitive Impact Statement

    In accordance with the Antitrust Procedures and Penalties Act, 15 
U.S.C. 16(b)-(h) (the ``APPA'' or ``Tunney Act''), the United States of 
America files this Competitive Impact Statement related to the proposed 
Final Judgment filed in this civil antitrust proceeding.

I. Nature and Purpose of the Proceeding

    On January 10, 2025, Constellation Energy Corporation 
(``Constellation'') announced its agreement to acquire Calpine 
Corporation (``Calpine'') for a net purchase price of $26.6 billion 
(the ``Acquisition''), a transaction that would create the largest 
wholesale electricity generating company in the United States. The 
United States and the State of Texas (collectively, the 
``Plaintiffs''), filed a civil antitrust Complaint on December 5, 2025, 
seeking to enjoin the Acquisition.
    The Complaint alleges that the likely effect of this Acquisition 
would be to substantially lessen competition for wholesale electricity 
in two relevant geographic markets in violation of

[[Page 59217]]

Section 7 of the Clayton Act, 15 U.S.C. 18. One market comprises the 
area operated by the Electric Reliability Council of Texas (``ERCOT''), 
an independent system operator that serves as the electricity grid and 
market operator for most of Texas. ERCOT's electricity is delivered to 
more than 27 million Texans, supplying approximately 90% of the state's 
electricity demand. In 2024, ERCOT oversaw the sale of more than $14.4 
billion in wholesale electricity. The second market comprises the 
Coastal Mid-Atlantic area of the PJM Interconnection, LLC (``PJM''). 
PJM is a regional transmission organization that manages the largest 
electricity transmission grid in the United States. It serves all or 
parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New 
Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West 
Virginia, and the District of Columbia, supplying electricity to more 
than 67 million Americans. The PJM Coastal Mid-Atlantic geographic area 
is a distinct area within PJM that includes southeastern Pennsylvania, 
New Jersey, Delaware, and the eastern shores of Maryland and Virginia. 
In 2024, approximately $4 billion of wholesale electricity was 
generated and supplied to more than 10 million people and businesses in 
PJM's Coastal Mid-Atlantic area.
    Concurrent with filing the Complaint, the United States filed a 
proposed Final Judgment \1\ and an Asset Preservation and Hold Separate 
Stipulation and Order (``Stipulation and Order''),\2\ which are 
designed to remedy the loss of competition alleged in the Complaint.
---------------------------------------------------------------------------

    \1\ Proposed Final Judgment, United States et al. v. 
Constellation Energy Corporation, et al., No. 25-cv-4235, ECF 2-2 
(D.D.C. Dec. 5, 2025).
    \2\ Asset Preservation And Hold Separate Stipulation And Order, 
United States et al. v. Constellation Energy Corporation, No. 25-cv-
4235, ECF 2-1 (D.D.C. Dec. 5, 2025).
---------------------------------------------------------------------------

    Under the proposed Final Judgment, which is explained more fully 
below, Constellation, Calpine, and CPN CS Holdco Corp. (collectively 
the ``Defendants'') are required to divest the Calpine electric 
generating facilities listed below.
    In ERCOT:
     Jack A. Fusco Energy Center, located southwest of the city 
of Houston, Texas (``Jack A. Fusco''); and
     Calpine's minority ownership interest in the Gregory 
Energy Center, located northeast of the city of Corpus Christi, Texas 
(``Gregory'').
    In PJM:
     Bethlehem Energy Center, located in Bethlehem, 
Pennsylvania (``Bethlehem'');
     Edge Moor Energy Center, located in Wilmington, Delaware 
(``Edge Moor'');
     Hay Road Energy Center, located in Wilmington, Delaware 
(``Hay Road''); and
     York Energy Center (York 1 and York 2), located southeast 
of the city of York, Pennsylvania (``York'').
    The Stipulation and Order requires the Defendants to take certain 
steps to operate, preserve, and maintain the full economic viability, 
marketability, and competitiveness of the assets that must be divested 
pending entry of the proposed Final Judgment by this Court. Plant 
management and operations of the assets to be divested must be held 
entirely separate, distinct, and apart from Defendants' other 
operations.
    For the four PJM electric generating facilities the Defendants must 
divest, the Stipulation and Order requires the Defendants to submit 
offers into the PJM day-ahead auction market, described in detail at 
Section II.B.2 below, at a price not greater than its costs. For each 
of these facilities, the Defendants must submit offers to this market 
at cost or lower, unless unable to do so due to an outage, as defined 
in the Stipulation and Order. In the event of an outage, the Defendants 
must submit offers for all output that is unaffected by the outage. 
Similarly, for Jack A. Fusco, the Defendants must submit offers into 
ERCOT's day-ahead auction, described in detail at Section II.B.2 below, 
at a price not greater than its costs in accordance with the physical 
characteristics of the applicable units unless unable to do so due to 
an outage or because ERCOT has issued an Advanced Action Notice or 
Weather Watch as specified in the Stipulation and Order. In the event 
of an outage, ERCOT Advanced Action Notice, or ERCOT Weather Watch, the 
Defendants must submit offers for all output that is unaffected by the 
outage, ERCOT Advanced Action Notice, or ERCOT Weather Watch. The 
Stipulation and Order prohibits the Defendants from participating in 
the formulation, determination, or direction of the strategy for 
Gregory's offers into the ERCOT auction markets.
    The purpose of these terms in the Stipulation and Order is to 
ensure that competition is maintained during the pendency of the 
required divestiture of the six Calpine electric generating facilities 
listed above.
    The Plaintiffs and Defendants have stipulated that the proposed 
Final Judgment may be entered after compliance with the APPA. Entry of 
the proposed Final Judgment will terminate this action, except that the 
Court will retain jurisdiction to construe, modify, or enforce the 
provisions of the proposed Final Judgment and to punish violations 
thereof.

II. Description of Events Giving Rise to the Alleged Violations

A. The Defendants and the Proposed Acquisition

    Constellation is a publicly held Pennsylvania corporation 
headquartered in Baltimore, Maryland. The company is one of the largest 
competitive electric generation companies in the nation, as measured by 
owned and contracted megawatts, generating $23.6 billion in revenue in 
2024. Constellation controls approximately 5,000 megawatts (MW) of 
electric generation capacity in ERCOT and over 20,000 MW in PJM. For 
context, one MW serves between 800 to 1,000 homes.
    Calpine is a privately held Delaware corporation headquartered in 
Houston, Texas. Calpine is the largest generator of electricity from 
natural gas and geothermal resources in the United States. Calpine's 
power plants collectively have the capacity to generate approximately 
9,000 MW of electricity in ERCOT, making it the third-largest 
electricity generation supplier in the state. In PJM, Calpine owns or 
exercises control over 14 total plants. These plants collectively 
provide more than 5,000 MW of capacity.
    Defendant CPN CS Holdco Corp. (``Holdco'') is a Delaware 
corporation headquartered in Houston, Texas. It is a direct wholly 
owned subsidiary of Calpine that was created to serve as a vehicle for 
Calpine's sale to Constellation.
    Pursuant to an Agreement and Plan of Merger dated January 10, 2025, 
Defendant Constellation proposes to acquire Defendant Calpine for a net 
purchase price of $26.6 billion.

B. The Acquisition's Competitive Effects

    The Complaint alleges that the Acquisition would result in likely 
anticompetitive effects in the markets for wholesale electricity in 
ERCOT and PJM's Coastal Mid-Atlantic area.
1. Electricity Background
    Generating companies such as Constellation and Calpine own power 
plants that produce electricity. Electric utilities and retail 
providers purchase that electricity from the generating companies and 
resell it to their end customers, such as households and businesses.
    Power plants, which often contain several individual generating 
units, transform fuel or renewable resources

[[Page 59218]]

into electricity. Steam turbines, combustion turbines, and combined-
cycle turbines powered by natural gas, oil, or coal, as well as nuclear 
reactors, wind turbines, and solar panels are important electric 
generating technologies.
    The cost to operate generating units varies considerably, based 
primarily on the cost of fuel and the efficiency of converting that 
fuel into electricity:
     Renewable units, such as solar farms and wind turbines, 
have very low operating costs, but can operate only when the sun is 
shining or the wind is blowing.
     Baseload units, such as nuclear plants and some coal-fired 
steam turbine units, also have relatively low operating costs and 
provide consistent generation throughout the day and across each season 
of the year. Nuclear units are designed to operate at full capacity 
unless they are offline for refueling outages. For many coal units, it 
is impractical to turn them on and off on a short-term basis because of 
long startup times and mechanical stress from cycling the units on and 
off.
     Mid-merit units, including combined-cycle natural gas 
units and some coal steam turbines, can typically turn on or have their 
output adjusted more quickly than baseload units.
     Peaking units, such as oil- and gas-fired combustion or 
gas-fired steam turbine units, tend to run only during periods of high 
(or ``peak'') electricity demand. They typically have the highest 
operating costs of any generation units but are also the easiest to 
turn on and shut off. This makes them critical for balancing supply and 
demand to keep the lights on without overloading the system.
    Electricity generated at a plant is transported via an extensive 
set of interconnected high voltage lines and equipment, known as the 
transmission grid, to lower voltage distribution lines that relay 
electricity to businesses and consumers in their homes. Operators, such 
as ERCOT and PJM, monitor the transmission grid closely to prevent too 
little or too much electricity from flowing over the grid, either of 
which can risk widespread blackouts through damage to the lines, 
equipment, or generating units connected to the grid. To avoid damage 
and service interruptions, grid operators manage the grid to prevent 
additional electricity from flowing over a transmission line as it 
approaches its operating limit (a ``transmission constraint'').
2. ERCOT and PJM Use Auctions to Set the Price of Electricity
    ERCOT and PJM each oversees two auctions that set the wholesale 
electricity price in their respective areas. These auctions are the 
primary means by which electricity generators compete to supply 
electricity in ERCOT and PJM and drive the price consumers ultimately 
pay for it.
    The first auction is called the ``day-ahead auction.'' Each 
generator offering electricity in the day-ahead market submits an 
individual offer for each of its participating generating units 
indicating the amount of electricity the unit is willing to sell each 
hour of the following day and the price at which it is willing to sell. 
Similarly, each buyer typically submits a bid identifying the amount of 
electricity that the buyer expects to need for each hour of the 
following day. ERCOT and PJM will take each of the bids and offers, add 
them up, and determine how much electricity will be demanded each hour.
    ERCOT and PJM will then ``dispatch'' generating units to meet each 
hour's demand. Subject to the physical limitations of their 
transmission grids, ERCOT and PJM will call on individual units to 
operate in ``merit'' order, meaning that each will begin by accepting 
the least-expensive offer and thereafter, accept offers from units at 
progressively higher prices until the needs for each hour of the next 
day are met. The price offered by the last unit to be accepted to meet 
demand for an individual hour sets the clearing price for that hour. 
All other units whose offers also have been accepted for that 
individual hour receive the price of that highest cost unit, regardless 
of their individual offer price (or their units' costs). Thus, a 
generator may be paid a higher clearing price than its own offer price 
if electricity from additional, higher-priced generating units is 
needed to meet demand.
    The second auction is a ``real-time'' auction that operates 
functionally in the same way. However, it clears the same day the 
electricity is required and reconciles the results of the day-ahead 
auctions with actual supply and demand. In the real-time auctions, 
ERCOT and PJM set prices for each five-minute interval of the day 
rather than each hour as in the day-ahead auction.
3. Wholesale Electricity Markets
    As alleged in the complaint, wholesale electricity is a relevant 
product for evaluating the competitive impact of the Acquisition. Each 
hourly increment in which wholesale electricity is sold in ERCOT's or 
PJM's ``day-ahead'' auction and each five-minute increment in the ERCOT 
or PJM ``real-time'' auctions is a separate relevant product market. 
This is because electricity in one time period is not a substitute for 
electricity in another time period. While supply and demand for 
wholesale electricity varies in different periods, both auctions share 
a common feature: in the event of a small but significant non-
transitory increase in the price of wholesale electricity at relevant 
times, not enough purchasers are likely to switch away from wholesale 
electricity to make that increase unprofitable. Additionally, in the 
event of a small but significant non-transitory increase in the price 
of wholesale electricity within an hourly or five-minute time period, 
not enough purchasers would switch to consuming wholesale electricity 
in a different time period to make that price increase unprofitable. 
This means that each of these specific auction time periods is a 
relevant product market and a ``line of commerce'' within the meaning 
of Section 7 of the Clayton Act.
    Although each of these specific time periods is a relevant product 
market, they can be aggregated into a ``cluster market'' for analytical 
convenience for considering whether the Acquisition violates the 
antitrust laws. For example, all 24 hours in a single day in either PJM 
or ERCOT's ``day-ahead'' auction could be aggregated into one market, 
as could all five-minute intervals in a single hour in PJM or ERCOT's 
``real-time'' auction.
4. Geographic Markets
    At times, transmission constraints within power grids limit the 
free flow of electricity across a geographic region. Energy produced on 
one side of a constraint cannot easily flow to the other side of the 
constraint once the transfer limit has been reached. Transmission 
constraints can affect electricity flow within ERCOT and PJM to varying 
degrees with PJM, in particular, impacted. When constraints arise, PJM 
cannot dispatch generating units in merit order if doing so would 
overload a transmission constraint, a concept called ``congestion.'' To 
avoid congestion while still satisfying demand, PJM must call on 
higher-priced units that, given their grid location, do not overload 
the transmission constraint. When this happens, prices are lower on one 
side of the constraint and higher on the other side.
a. PJM's Coastal Mid-Atlantic Market
    The Complaint alleges that the PJM Coastal Mid-Atlantic geographic 
area is a relevant geographic market for evaluating the potential 
competitive

[[Page 59219]]

impact of the Acquisition. PJM Coastal Mid-Atlantic is a distinct area 
within PJM that includes parts of southeastern Pennsylvania, New 
Jersey, Delaware, and the eastern shores of Maryland and Virginia.
    PJM Coastal Mid-Atlantic is affected by Nottingham, a major 
transmission constraint located near the Maryland-Pennsylvania border 
that divides PJM Coastal Mid-Atlantic from the rest of the PJM region. 
Generators within PJM Coastal Mid-Atlantic frequently sell electricity 
into other areas to the west and south. However, when transmission 
lines are constrained, the amount of electricity that generators within 
PJM Coastal Mid-Atlantic can sell outside of the area is limited. As a 
result, electricity prices in PJM Coastal Mid-Atlantic often differ 
from other areas within the PJM region.
    When Nottingham is constrained, purchasers of wholesale electricity 
for use in PJM Coastal Mid-Atlantic have limited capability to turn to 
generation outside of PJM Coastal Mid-Atlantic. At such times, the 
amount of electricity that purchasers could obtain from generators 
outside PJM Coastal Mid-Atlantic is insufficient to deter generators 
located in PJM Coastal Mid-Atlantic from imposing a small but 
significant non-transitory price increase. Thus, PJM Coastal Mid-
Atlantic is a relevant geographic market and a ``section of the 
country'' within the meaning of Section 7 of the Clayton Act.
b. ERCOT Market
    The Complaint also alleges that the entire ERCOT region is a 
relevant geographic market for evaluating the potential competitive 
impact of the Acquisition. The ERCOT grid experiences very little 
congestion. In the event of a small but significant non-transitory 
increase in the price of wholesale electricity within ERCOT, not enough 
purchasers in the ERCOT region are likely to switch to purchasing from 
regions outside ERCOT to make that increase unprofitable. At its annual 
peak, the electricity in demand in ERCOT exceeds 85,000 MW. ERCOT's 
connections to Mexico's grid and to the Southwest Power Pool grid, 
which collectively can for approximately 1,200 MW of electricity to 
flow into ERCOT. The volume of these power flows is insufficient to 
prevent generators from imposing a small but significant non-transitory 
price increase within ERCOT. Thus, the region covered by ERCOT is a 
relevant geographic market and a ``section of the country'' within the 
meaning of Section 7 of the Clayton Act.\3\
---------------------------------------------------------------------------

    \3\ Section 7 of the Clayton Act covers ERCOT, a geographic 
region located entirely within the state of Texas.
---------------------------------------------------------------------------

5. Anticompetitive Effects
    As alleged in the Complaint, the Acquisition risks substantially 
lessening competition in the ERCOT and PJM Coastal Mid-Atlantic 
wholesale electricity markets. The combination of Constellation and 
Calpine's electricity generating units serving ERCOT and PJM Coastal 
Mid-Atlantic would eliminate competition between them and enhance 
Constellation's post-Acquisition ability and incentive to withhold 
electricity to raise wholesale electricity price anticompetitively in 
those markets.
    Under certain circumstances, a wholesale electricity generator, 
such as Constellation or Calpine, may profitably withhold electricity, 
leading to increased wholesale electricity prices. An operator of a 
generating unit may withhold capacity in several ways, including by 
submitting high offers for some of its higher-cost units into the day-
ahead or real-time auctions so that its units are not dispatched. If a 
unit is withheld from an auction, then a higher-priced unit may need to 
take the place of the withheld capacity because the units are 
dispatched in merit order, that is from the lowest-priced unit to the 
highest until demand matches supply. Thus, withholding a unit (or 
units) can lead to a higher market-clearing price because the withheld 
units force ERCOT or PJM to accept higher-priced offers from units that 
end up setting the market clearing price. All accepted units are paid 
the identical price regardless of the unit's offer price or its 
operating cost. Withholding can be profitable for generating companies 
that offer multiple units into an auction. For example, a generator 
might have four units accepted and a fifth higher-cost unit that, if 
accepted, would be one of the last units needed to meet demand and thus 
affect the market clearing price. If that fifth unit were withheld, 
then ERCOT or PJM would be required to accept an even higher-priced 
unit, thereby increasing the market-clearing price that would benefit 
the generator's four other units which had been accepted. In this 
example, withholding the fifth unit would be profitable for the 
generator if it increases the market-clearing price such that increased 
profits from the four dispatched units attributable to that price 
increase exceed the lost profits that would have been earned by the 
fifth unit if it were offered into the market at the lower market-
clearing price. This type of electricity withholding is well 
established in a large body of theoretical and empirical literature in 
economics, public policy, and electricity markets analysis.
    The risk that an electricity generator such as Constellation or 
Calpine may profitably withhold depends in part on the generator's 
asset mix. A profitable withholding strategy typically requires a 
combination of units that confer the ability to withhold and relatively 
low-cost units that provide an incentive to withhold. Units that 
provide an incentive to withhold typically are relatively low cost and 
operate consistently throughout the day and across all seasons of the 
year. As the Complaint describes, baseload units, such as nuclear 
plants and some coal-fired steam turbine units, are low cost and 
consistently operating. Because these types of units run frequently and 
at operating costs lower than the market-clearing price, they benefit 
from the higher prices and provide a significant incentive for their 
owner to withhold another, higher-cost generating asset.
    These higher-cost units provide the ability to raise the market-
clearing price. As the Complaint describes, peaking units, such as oil- 
and gas-fired combustion turbine or internal combustion units, are 
among the highest-cost electricity generators. Peaking units are also 
relatively easy to turn on and shut off and typically operate during 
high-demand periods, often setting the market-clearing price. Mid-merit 
units, including combined-cycle natural gas units and some coal steam 
turbines, often possess similar characteristics. As the Complaint 
describes, such units can typically be turned on and off or adjust 
their output more rapidly than baseload units. Although they are 
typically lower cost than peaking units, mid-merit units set the 
market-clearing price during periods of lower demand. This means that 
an owner of a peaking or mid-merit unit can raise the market-clearing 
price by withholding the unit. Withholding a unit is profitable to the 
extent that the company also owns enough low-cost units that confer 
incentive to at least recoup the profit foregone by withholding the 
unit that confers the withholding ability.
    The Acquisition would likely enhance Constellation's ability and 
incentive to withhold electricity to raise prices in ERCOT and PJM 
Coastal Mid-Atlantic by giving Constellation a broader portfolio of 
units and a richer mix of assets. This combination of assets would 
enable Constellation to profitably

[[Page 59220]]

withhold one or more units in the ERCOT and PJM day-ahead and real-time 
auctions to a greater degree than either it or Calpine would have had 
individually, leading to higher market-clearing prices.
    As the Complaint alleges, through the Acquisition, Constellation is 
increasing its share of mid-merit and peaking units serving PJM Coastal 
Mid-Atlantic. The acquisition of mid-merit and peaking units would give 
Constellation an enhanced ability to profitably withhold in that 
market. The additional revenues received by Constellation's lower-cost 
generation units, including its nuclear plants, because of 
anticompetitively higher prices in PJM Coastal Mid-Atlantic would more 
than compensate for the lost profits from the generating unit(s) 
withheld.
    Similarly, in ERCOT, the Complaint alleges that after the 
Acquisition, Constellation would control more than 12% of ERCOT's 
generating capacity, and over 20% of the natural gas generation units 
in ERCOT that often set the clearing price. As the Complaint alleges, 
natural gas units set the market-clearing price in ERCOT the majority 
of the time, making them particularly valuable in Texas, where the 
electricity grid relies on gas to complement and support its increasing 
use of intermittent renewable resources such as sun and wind to 
generate electricity. Thus, the Acquisition would confer on 
Constellation an enhanced ability to profitably withhold. The 
additional revenues received by Constellation's lower-cost generating 
units because of anticompetitively higher market-wide prices would 
frequently more than compensate for the lost profits from the 
generating unit(s) withheld.
6. Possible Entry and Expansion Unlikely To Offset Anticompetitive 
Effects
    Entry of additional generation into either the PJM Coastal Mid-
Atlantic market or ERCOT market is unlikely to be timely or sufficient 
in deterring or counteracting the competitive harm that may result from 
the Acquisition. Expansion by existing generators in those markets is 
similarly unlikely to occur in a sufficient and timely fashion to 
prevent such harm. Wholesale electricity markets feature high barriers 
to entry and expansion. Among those barriers, building new generation 
capacity in either the ERCOT and PJM Coastal Mid-Atlantic regions 
requires significant capital investment in generating equipment, 
infrastructure, and technology, and generally takes many years, 
considering the necessary environmental, safety, zoning, and regulatory 
approvals. Furthermore, the anticipated increase in electricity demand 
(e.g., to power AI data centers) has led to long queues for the 
delivery of new gas turbines. There are additional barriers affecting 
the PJM Coastal Mid-Atlantic market. For example, building new high-
voltage transmission lines that would relieve the constraints that 
limit the flow of electricity out of PJM Coastal Mid-Atlantic would 
also generally take many years, and require significant capital 
investment and multiple environmental, safety, zoning, and regulatory 
approvals.

III. Explanation of the Proposed Final Judgment

    The relief required by the proposed Final Judgment will remedy the 
loss of competition alleged in the Complaint by establishing one or 
more independent and economically viable competitors in the ERCOT and 
PJM Coastal Mid-Atlantic wholesale electricity markets.

A. Divestitures

    Paragraph IV.A of the proposed Final Judgment requires Defendants, 
within 240 calendar days after consummation of the Acquisition, to 
enter into a definitive contract or contracts to divest two sets of 
assets to an acquirer or acquirers acceptable to the United States. 
Allowing Defendants a 240-day period will help ensure that the 
transition of generation assets to an acquirer or acquirors will not 
occur during peak summer months.
    Defendants must divest the ``ERCOT Divestiture Assets'' as that 
term is defined in Paragraph II.H of the proposed Final Judgment. The 
ERCOT Divestiture Assets include Calpine's Jack A. Fusco plant and 
Calpine's ownership interest in the Gregory plant, including all of 
Defendants' rights, titles, and interests in and to all property and 
assets, tangible and intangible, relating to or used in connection with 
the plants' generation, dispatch, and offer of electricity from these 
plants.
    Defendants must also divest the ``PJM Divestiture Assets'' as that 
term is defined in Paragraph II.O of the proposed Final Judgment. The 
PJM Divestiture Assets include Calpine's Bethlehem, York, Hay Road, and 
Edge Moor plants, including all of Defendants' rights, titles, and 
interests in and to all property and assets, tangible and intangible, 
relating to or used in connection with the plants' generation, 
dispatch, and offer of electricity in PJM.
    Defendants are responsible for divesting to an acquirer or 
acquirers acceptable to the United States in its sole discretion. The 
assets must be divested in such a way as to satisfy the United States, 
in its sole discretion, that the assets can and will be operated by an 
acquirer or acquirers as a viable, ongoing business that can compete 
effectively in the ERCOT and PJM Coastal Mid-Atlantic markets. 
Defendants must take all reasonable steps necessary to accomplish the 
divestitures quickly and must cooperate with any acquirer.
1. Divestiture Assets
    Calpine's two ERCOT plants to be divested as part of the ERCOT 
Divestiture Assets are Jack A. Fusco and Gregory. Jack A. Fusco is a 
557 MW combined-cycle natural gas facility located in Richmond, Texas. 
Gregory is a 365 MW combined-cycle natural gas facility located in 
Gregory, Texas. Calpine owns approximately 28.5% of Gregory.
    Calpine's four PJM Coastal Mid-Atlantic plants to be divested as 
part of the PJM Divestiture Assets are Bethlehem, York, Hay Road, and 
Edge Moor. Bethlehem is a 1,134 MW natural gas-fired combined cycle 
plant located in Bethlehem, Pennsylvania. It began commercial 
operations in 2003. York comprises two generating units, known as York 
1 and York 2. York 1 is a 569 MW natural gas-fired combined-cycle unit. 
It began operations in 2011. York 2 is an 828 MW natural gas-fired 
combined-cycle unit. It is newer than York 1, having begun operations 
in 2019, eight years later. York 1 and 2 are in Peach Bottom Township, 
Pennsylvania. Hay Road is a 1,136 MW dual-fuel combined cycle plant. It 
began commercial operations in 1989. Edge Moor is a 707 MW simple cycle 
natural gas-fired plant that began commercial operations in 1965. Both 
Hay Road and Edge Moor are in Wilmington, Delaware.
    For each plant, the Defendants must divest the entirety of their 
rights, titles, and interests in and to all property and assets, 
tangible and intangible, relating to or used in connection with the 
generation, dispatch, and offer of electricity. This includes all real 
property, tangible personal property, intangible property, and 
intellectual property relating to each plant. This also includes all 
customer contracts and relationships, as well as all supply agreements. 
The proposed Final Judgment defines the entirety of the assets that the 
Defendants must divest as the ``Divestiture Assets.''
    The divestiture requirements of the proposed Final Judgment will 
maintain competition for wholesale electricity in the ERCOT and PJM 
Coastal Mid-

[[Page 59221]]

Atlantic markets by allowing one or more competitors independent of the 
Defendants to acquire the Divestiture Assets. The proposed Final 
Judgment seeks to preserve competition by depriving Constellation of 
assets that are key to making it profitable for Constellation to 
withhold electricity generation to raise the market-clearing price in 
ERCOT and PJM's day-ahead and real-time auctions. In ERCOT, Defendants 
must divest the Jack A. Fusco plant and Calpine's interest in the 
Gregory plant. These plants are natural-gas plants, a critical fuel 
type in ERCOT that, as the Complaint alleges, set the market-clearing 
price the majority of the time. Constellation's divestiture of these 
plants will keep it from gaining an enhanced ability to raise the 
market-clearing prices in the ERCOT auctions. In the PJM Coastal Mid-
Atlantic market, Defendants must divest the Bethlehem, York, Hay Road, 
and Edge Moor plants. These are mid-merit and peaking units, which 
often set the market-clearing price in the PJM Coastal Mid-Atlantic 
market. Divestiture of these four plants ensures that the Acquisition 
does not confer on Constellation an enhanced ability to withhold 
electricity to raise the market-clearing price and the incentive to 
make withholding profitable. Accordingly, the proposed Final Judgment 
protects competition in these markets.
2. Relevant Personnel
    The proposed Final Judgment contains provisions intended to 
facilitate an acquirer's efforts to hire certain employees. 
Specifically, Paragraph IV.J of the proposed Final Judgment requires 
Defendants to provide an acquirer, the United States, and the State of 
Texas with organization charts and information relating to these 
employees and to make them available for interviews. It also provides 
that Defendants must not interfere with any negotiations by an acquirer 
to hire these employees. In addition, for employees who elect 
employment with an acquirer, Defendants must waive all non-compete and 
non-disclosure agreements, vest all unvested pension and other equity 
rights, provide any pay pro rata, provide all compensation and benefits 
that those employees have fully or partially accrued, and provide all 
other benefits that the employees would generally be provided had those 
employees continued employment with Defendants, including but not 
limited to any retention bonuses or payments.
3. Divestiture Trustee
    If Defendants do not accomplish the divestitures within the period 
prescribed in Paragraph IV.A of the proposed Final Judgment, Section V 
of the proposed Final Judgment provides that the Court will appoint a 
divestiture trustee selected by the United States to effect the 
divestiture. If a divestiture trustee is appointed, the proposed Final 
Judgment provides that Defendants must pay all costs and expenses of 
the trustee. The divestiture trustee's commission must be structured to 
provide an incentive for the trustee based on the price obtained and 
the speed with which the divestiture is accomplished. After the 
divestiture trustee's appointment becomes effective, the trustee must 
provide monthly reports to the United States and State of Texas setting 
forth his or her efforts to accomplish the divestiture. If the 
divestiture has not been accomplished within 180 calendar days of the 
divestiture trustee's appointment, the United States may make 
recommendations to the Court, which will enter such orders as 
appropriate, to carry out the purpose of the Final Judgment, including 
by extending the term of the divestiture trustee's appointment by a 
period requested by the United States.
B. Other Provisions To Ensure Compliance
    The proposed Final Judgment also contains provisions designed to 
promote compliance with and make enforcement of the Final Judgment as 
effective as possible. Paragraph XIV.A provides that the United States 
and the State of Texas retain and reserve all rights to enforce the 
Final Judgment, including the right to seek an order of contempt from 
the Court. Under the terms of this paragraph, Defendants have agreed 
that in any civil contempt action, any motion to show cause, or any 
similar action brought by the United States or the State of Texas 
regarding an alleged violation of the Final Judgment, the United States 
or the State of Texas may establish the violation and the 
appropriateness of any remedy by a preponderance of the evidence and 
that Defendants have waived any argument that a different standard of 
proof should apply. This provision aligns the standard for compliance 
with the Final Judgment with the standard of proof that applies to the 
underlying offense that the Final Judgment addresses.
    Paragraph XIV.B provides additional clarification regarding the 
interpretation of the provisions of the proposed Final Judgment. The 
proposed Final Judgment is intended to remedy the loss of competition 
the United States and the State of Texas allege would otherwise result 
from the Acquisition. Defendants agree that they will abide by the 
proposed Final Judgment and that they may be held in contempt of the 
Court for failing to comply with any provision of the proposed Final 
Judgment that is stated specifically and in reasonable detail, as 
interpreted in light of this procompetitive purpose.
    Paragraph XIV.C provides that, if the Court finds in an enforcement 
proceeding that a Defendant has violated the Final Judgment, the United 
States may apply to the Court for an extension of the Final Judgment, 
together with such other relief as may be appropriate. In addition, to 
compensate American taxpayers for any costs associated with 
investigating and enforcing violations of the Final Judgment, Paragraph 
XIV.C provides that, in any successful effort by the United States or 
the State of Texas to enforce the Final Judgment against a Defendant, 
whether litigated or resolved before litigation, the Defendant must 
reimburse the United States and the State of Texas for attorneys' fees, 
experts' fees, and other costs incurred in connection with that effort 
to enforce the Final Judgment, including the investigation of the 
potential violation.
    Paragraph XIV.D states that the United States may file an action 
against a Defendant for violating the Final Judgment for up to four 
years after the Final Judgment has expired or been terminated. This 
provision is meant to address circumstances such as when evidence that 
a violation of the Final Judgment occurred during the term of the Final 
Judgment is not discovered until after the Final Judgment has expired 
or been terminated or when there is not sufficient time for the United 
States to complete an investigation of an alleged violation until after 
the Final Judgment has expired or been terminated. This provision, 
therefore, makes clear that, for four years after the Final Judgment 
has expired or been terminated, the United States may still challenge a 
violation that occurred during the term of the Final Judgment.
    Finally, Section XV of the proposed Final Judgment provides that 
the Final Judgment will expire ten years from the date of its entry, 
except that after five years from the date of its entry, the Final 
Judgment may be terminated upon notice by the United States to the 
Court, Defendants and the State of Texas that the divestitures have 
been completed and continuation of the Final Judgment is no longer 
necessary or in the public interest.

[[Page 59222]]

IV. Remedies Available to Potential Private Plaintiffs

    Section 4 of the Clayton Act, 15 U.S.C. 15, provides that any 
person who has been injured as a result of conduct prohibited by the 
antitrust laws may bring suit in federal court to recover three times 
the damages the person has suffered, as well as costs and reasonable 
attorneys' fees. Entry of the proposed Final Judgment neither impairs 
nor assists the bringing of any private antitrust damage action. Under 
the provisions of Section 5(a) of the Clayton Act, 15 U.S.C. 16(a), the 
proposed Final Judgment has no prima facie effect in any subsequent 
private lawsuit that may be brought against Defendants.

V. Procedures Available for Modification of the Proposed Final Judgment

    The United States and Defendants have stipulated that the proposed 
Final Judgment may be entered by the Court after compliance with the 
provisions of the APPA, provided that the United States has not 
withdrawn its consent. The APPA conditions entry upon the Court's 
determination that the proposed Final Judgment is in the public 
interest.
    The APPA provides a period of at least 60 days preceding the 
effective date of the proposed Final Judgment within which any person 
may submit to the United States written comments regarding the proposed 
Final Judgment. Any person who wishes to comment should do so within 60 
days of the date of publication of this Competitive Impact Statement in 
the Federal Register, or within 60 days of the first date of 
publication in a newspaper of the summary of this Competitive Impact 
Statement, whichever is later. All comments received during this period 
will be considered by the U.S. Department of Justice, which remains 
free to withdraw its consent to the proposed Final Judgment at any time 
before the Court's entry of the Final Judgment. The comments and the 
response of the United States will be filed with the Court. In 
addition, the comments and the United States' responses will be 
published in the Federal Register unless the Court agrees that the 
United States instead may publish them on the U.S. Department of 
Justice, Antitrust Division's internet website.
    Written comments should be submitted in English to: Patricia C. 
Corcoran, Acting Chief, Transportation, Energy & Agriculture Section, 
Antitrust Division, United States Department of Justice, 450 Fifth St. 
NW, Suite 8000, Washington, DC 20530, [email protected].
    The proposed Final Judgment provides that the Court retains 
jurisdiction over this action, and the parties may apply to the Court 
for any order necessary or appropriate for the modification, 
interpretation, or enforcement of the Final Judgment.

VI. Alternatives to the Proposed Final Judgment

    As an alternative to the proposed Final Judgment, the United States 
considered a full trial on the merits against Defendants. The United 
States could have pursued litigation and sought preliminary and 
permanent injunctions against the Acquisition. The United States is 
satisfied, however, that the relief required by the proposed Final 
Judgment will remedy the anticompetitive effects alleged in the 
Complaint, preserving competition in the markets for wholesale 
electricity in ERCOT and PJM's Coastal Mid-Atlantic area. Thus, the 
proposed Final Judgment achieves all or substantially all of the relief 
the United States would have obtained through litigation but avoids the 
time, expense, and uncertainty of a full trial on the merits.

VII. Standard of Review Under the APPA for the Proposed Final Judgment

    Under the Clayton Act and APPA, proposed Final Judgments, or 
``consent decrees,'' in antitrust cases brought by the United States 
are subject to a 60-day comment period, after which the Court shall 
determine whether entry of the proposed Final Judgment ``is in the 
public interest.'' 15 U.S.C. 16(e)(1). In making that determination, 
the Court, in accordance with the statute as amended in 2004, is 
required to consider:

    (A) the competitive impact of such judgment, including 
termination of alleged violations, provisions for enforcement and 
modification, duration of relief sought, anticipated effects of 
alternative remedies actually considered, whether its terms are 
ambiguous, and any other competitive considerations bearing upon the 
adequacy of such judgment that the court deems necessary to a 
determination of whether the consent judgment is in the public 
interest; and
    (B) the impact of entry of such judgment upon competition in the 
relevant market or markets, upon the public generally and 
individuals alleging specific injury from the violations set forth 
in the complaint including consideration of the public benefit, if 
any, to be derived from a determination of the issues at trial.

15 U.S.C. 16(e)(1)(A) & (B). In considering these statutory factors, 
the Court's inquiry is necessarily a limited one, as the government is 
entitled to ``broad discretion to settle with the defendant within the 
reaches of the public interest.'' United States v. Microsoft Corp., 56 
F.3d 1448, 1461 (D.C. Cir. 1995); United States v. U.S. Airways Grp., 
Inc., 38 F. Supp. 3d 69, 75 (D.D.C. 2014) (explaining that the 
``court's inquiry is limited'' in Tunney Act settlements); United 
States v. InBev N.V./S.A., No. 08-1965 (JR), 2009 U.S. Dist. LEXIS 
84787, at *3 (D.D.C. Aug. 11, 2009) (noting that a court's review of a 
proposed Final Judgment is limited and only inquires ``into whether the 
government's determination that the proposed remedies will cure the 
antitrust violations alleged in the complaint was reasonable, and 
whether the mechanisms to enforce the final judgment are clear and 
manageable'').
    As the U.S. Court of Appeals for the District of Columbia Circuit 
has held, under the APPA, a court considers, among other things, the 
relationship between the remedy secured and the specific allegations in 
the government's complaint, whether the proposed Final Judgment is 
sufficiently clear, whether its enforcement mechanisms are sufficient, 
and whether it may positively harm third parties. See Microsoft, 56 
F.3d at 1458-62. With respect to the adequacy of the relief secured by 
the proposed Final Judgment, a court may not ``make de novo 
determination of facts and issues.'' United States v. W. Elec. Co., 993 
F.2d 1572, 1577 (D.C. Cir. 1993) (quotation marks omitted); see also 
Microsoft, 56 F.3d at 1460-62; United States v. Alcoa, Inc., 152 F. 
Supp. 2d 37, 40 (D.D.C. 2001); United States v. Enova Corp., 107 F. 
Supp. 2d 10, 16 (D.D.C. 2000); InBev, 2009 U.S. Dist. LEXIS 84787, at 
*3. Instead, ``[t]he balancing of competing social and political 
interests affected by a proposed antitrust decree must be left, in the 
first instance, to the discretion of the Attorney General.'' W. Elec. 
Co., 993 F.2d at 1577 (quotation marks omitted). ``The court should 
also bear in mind the flexibility of the public interest inquiry: the 
court's function is not to determine whether the resulting array of 
rights and liabilities is the one that will best serve society, but 
only to confirm that the resulting settlement is within the reaches of 
the public interest.'' Microsoft, 56 F.3d at 1460 (citation and 
internal quotation marks omitted) (emphases in original); see also 
United States v. Deutsche Telekom AG, No. 19-2232 (TJK), 2020 WL 
1873555, at *7 (D.D.C. Apr. 14, 2020). More demanding requirements 
would ``have enormous practical consequences for the government's 
ability to negotiate future settlements,'' contrary to congressional

[[Page 59223]]

intent. Microsoft, 56 F.3d at 1456. ``The Tunney Act was not intended 
to create a disincentive to the use of the consent decree.'' Id.
    The United States' predictions about the efficacy of the remedy are 
to be afforded deference by the Court. See, e.g., Microsoft, 56 F.3d at 
1461 (recognizing courts should give ``due respect to the Justice 
Department's . . . view of the nature of its case''); United States v. 
Iron Mountain, Inc., 217 F. Supp. 3d 146, 152-53 (D.D.C. 2016) (``In 
evaluating objections to settlement agreements under the Tunney Act, a 
court must be mindful that [t]he government need not prove that the 
settlements will perfectly remedy the alleged antitrust harms[;] it 
need only provide a factual basis for concluding that the settlements 
are reasonably adequate remedies for the alleged harms.'' (internal 
citations omitted)); United States v. Republic Servs., Inc., 723 F. 
Supp. 2d 157, 160 (D.D.C. 2010) (noting ``the deferential review to 
which the government's proposed remedy is accorded''); United States v. 
Archer-Daniels-Midland Co., 272 F. Supp. 2d 1, 6 (D.D.C. 2003) (``A 
district court must accord due respect to the government's prediction 
as to the effect of proposed remedies, its perception of the market 
structure, and its view of the nature of the case.''). The ultimate 
question is whether ``the remedies [obtained by the Final Judgment are] 
so inconsonant with the allegations charged as to fall outside of the 
`reaches of the public interest.' '' Microsoft, 56 F.3d at 1461 
(quoting W. Elec. Co., 900 F.2d at 309).
    Moreover, the Court's role under the APPA is limited to reviewing 
the remedy in relationship to the violations that the United States has 
alleged in its Complaint and does not authorize the Court to 
``construct [its] own hypothetical case and then evaluate the decree 
against that case.'' Microsoft, 56 F.3d at 1459; see also U.S. Airways, 
38 F. Supp. 3d at 75 (noting that the court must simply determine 
whether there is a factual foundation for the government's decisions 
such that its conclusions regarding the proposed settlements are 
reasonable); InBev, 2009 U.S. Dist. LEXIS 84787, at *20 (``[T]he 
`public interest' is not to be measured by comparing the violations 
alleged in the complaint against those the court believes could have, 
or even should have, been alleged''). Because the ``court's authority 
to review the decree depends entirely on the government's exercising 
its prosecutorial discretion by bringing a case in the first place,'' 
it follows that ``the court is only authorized to review the decree 
itself,'' and not to ``effectively redraft the complaint'' to inquire 
into other matters that the United States did not pursue. Microsoft, 56 
F.3d at 1459-60.
    In its 2004 amendments to the APPA, Congress made clear its intent 
to preserve the practical benefits of using judgments proposed by the 
United States in antitrust enforcement, Public Law 108-237 Sec.  221, 
and added the unambiguous instruction that ``[n]othing in this section 
shall be construed to require the court to conduct an evidentiary 
hearing or to require the court to permit anyone to intervene.'' 15 
U.S.C. 16(e)(2); see also U.S. Airways, 38 F. Supp. 3d at 76 
(indicating that a court is not required to hold an evidentiary hearing 
or to permit intervenors as part of its review under the Tunney Act). 
This language explicitly wrote into the statute what Congress intended 
when it first enacted the Tunney Act in 1974. As Senator Tunney 
explained: ``[t]he court is nowhere compelled to go to trial or to 
engage in extended proceedings which might have the effect of vitiating 
the benefits of prompt and less costly settlement through the consent 
decree process.'' 119 Cong. Rec. 24,598 (1973) (statement of Sen. 
Tunney). ``A court can make its public interest determination based on 
the competitive impact statement and response to public comments 
alone.'' U.S. Airways, 38 F. Supp. 3d at 76 (citing Enova Corp., 107 F. 
Supp. 2d at 17).

VIII. Determinative Documents

    There are no determinative materials or documents within the 
meaning of the APPA that were considered by the United States in 
formulating the proposed Final Judgment.

    Dated: December 12, 2025

Respectfully submitted,

FOR PLAINTIFF
UNITED STATES OF AMERICA

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JOSEPH CHANDRA MAZUMDAR
JEREMY EVANS (D.C. Bar #478097)
KATHRYN TRINKA (D.C. Bar #90010251)
Trial Attorneys

PAUL J. TORZILLI (D.C. Bar #986767)
Senior Litigation Counsel

United States Department of Justice
Antitrust Division
450 Fifth Street, NW
Washington, DC 20530
Telephone: (202) 353-1560
Email: [email protected]

[FR Doc. 2025-23298 Filed 12-17-25; 8:45 am]
BILLING CODE 4410-11-P