[Federal Register Volume 86, Number 165 (Monday, August 30, 2021)]
[Notices]
[Pages 48410-48417]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2021-18611]



[[Page 48410]]

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DEPARTMENT OF ENERGY


Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority--Rate Order No. WAPA-200

AGENCY: Western Area Power Administration, Energy (DOE).

ACTION: Notice of rate order extending formula rates.

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SUMMARY: The extension of the existing Western Area Power 
Administration (WAPA), Desert Southwest Region (DSW) formula rates for 
Network Integration Transmission Service (Network) on the Parker-Davis 
Project and Pacific Northwest-Pacific Southwest Intertie Project, along 
with formula rates for ancillary services, transmission losses, and 
unreserved use penalties applicable to Western Area Lower Colorado 
Balancing Authority (WALC), has been confirmed, approved, and placed 
into effect on an interim basis. The existing formula rates under Rate 
Schedules PD-NTS4 (Network), INT-NTS4 (Network), DSW-SD4 (Scheduling, 
System Control, and Dispatch), DSW-RS4 (Reactive Supply and Voltage 
Control), DSW-FR4 (Regulation and Frequency Response), DSW-EI4 (Energy 
Imbalance), DSW-SPR4 (Spinning Reserve), DSW-SUR4 (Supplemental 
Reserve), DSW-GI2 (Generator Imbalance), DSW-TL1 (Transmission Losses), 
and DSW-UU1 (Unreserved Use Penalties) are set to expire on September 
30, 2021. This rate extension makes no changes to the existing formula 
rates and extends them through September 30, 2026.

DATES: The extended formula rates under Rate Schedules PD-NTS4, INT-
NTS4, DSW-SD4, DSW-RS4, DSW-FR4, DSW-EI4, DSW-SPR4, DSW-SUR4, DSW-GI2, 
DSW-TL1, and DSW-UU1 will be placed into effect on an interim basis on 
October 1, 2021.

FOR FURTHER INFORMATION CONTACT: Jack D. Murray, Acting Regional 
Manager, Desert Southwest Region, Western Area Power Administration, 
P.O. Box 6457, Phoenix, AZ 85005-6457, telephone 602-605-2525, or 
email: [email protected], or Tina Ramsey, Rates Manager, Desert 
Southwest Region, Western Area Power Administration, telephone 602-602-
2565, or email: [email protected].

SUPPLEMENTARY INFORMATION: WAPA published a Federal Register notice 
(Proposed FRN) on July 8, 2021 (86 FR 36133), proposing to extend the 
existing formula rates under Rate Schedules PD-NTS4, INT-NTS4, DSW-SD4, 
DSW-RS4, DSW-FR4, DSW-EI4, DSW-SPR4, DSW-SUR4, DSW-GI2, DSW-TL1, and 
DSW-UU1 for October 1, 2021, through September 30, 2026. The Proposed 
FRN also initiated a 15-day public consultation and comment period.

Legal Authority

    By Delegation Order No. 00-037.00B, effective November 19, 2016, 
the Secretary of Energy delegated: (1) The authority to develop power 
and transmission rates to the WAPA Administrator; (2) the authority to 
confirm, approve, and place such rates into effect on an interim basis 
to the Deputy Secretary of Energy; and (3) the authority to confirm, 
approve, and place into effect on a final basis, remand, or disapprove 
such rates to the Federal Energy Regulatory Commission (FERC). By 
Delegation Order No. S1-DEL-S4-2021, effective February 25, 2021, the 
Acting Secretary of Energy also delegated the authority to confirm, 
approve, and place such rates into effect on an interim basis to the 
Under Secretary for Science (and Energy). By Redelegation Order No. S4-
DEL-OE1-2021, effective March 25, 2021, the Acting Under Secretary for 
Science (and Energy) redelegated the authority to confirm, approve, and 
place such rates into effect on an interim basis to the Assistant 
Secretary for Electricity. By Redelegation Order No. 00-002.10-05, 
effective July 8, 2020, the Assistant Secretary for Electricity further 
delegated the authority to confirm, approve, and place such rates into 
effect on an interim basis to the WAPA Administrator. This redelegation 
order, despite predating the February 2021 delegation and March 2021 
redelegation, remains valid. This rate action is issued under 
Redelegation Order No. 00-002.10-05 and Department of Energy procedures 
for public participation in rate adjustments set forth at 10 CFR part 
903.\1\
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    \1\ 50 FR 37835 (Sept. 18, 1985) and 84 FR 5347 (Feb. 21, 2019).
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    Following review of DSW's proposal, I hereby confirm, approve, and 
place Rate Order No. WAPA-200 into effect on an interim basis. This 
extends, without adjustment, the existing Rate Schedules PD-NTS4, INT-
NTS4, DSW-SD4, DSW-RS4, DSW-FR4, DSW-EI4, DSW-SPR4, DSW-SUR4, DSW-GI2, 
DSW-TL1, and DSW-UU1 through September 30, 2026. WAPA will submit Rate 
Order No. WAPA-200 and the extended rate schedules to FERC for 
confirmation and approval on a final basis.

DEPARTMENT OF ENERGY

Administrator, Western Area Power Administration

    In the Matter of: Western Area Power Administration Extension for 
the Desert Southwest Region Transmission and Ancillary Services Formula 
Rates
Rate Order No. WAPA-200

Order Confirming, Approving, and Placing Formula Rates for Transmission 
Service, Ancillary Services, Transmission Losses, and Unreserved Use 
Penalties Into Effect on an Interim Basis

    The formula rates in Rate Order No. WAPA-200 are established 
following section 302 of the Department of Energy (DOE) Organization 
Act (42 U.S.C. 7152).\2\
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    \2\ This Act transferred to, and vested in, the Secretary of 
Energy the power marketing functions of the Secretary of the 
Department of the Interior and the Bureau of Reclamation 
(Reclamation) under the Reclamation Act of 1902 (ch. 1093, 32 Stat. 
388), as amended and supplemented by subsequent laws, particularly 
section 9(c) of the Reclamation Project Act of 1939 (43 U.S.C. 
485h(c)); and other acts that specifically apply to the projects 
involved.
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    By Delegation Order No. 00-037.00B, effective November 19, 2016, 
the Secretary of Energy delegated: (1) The authority to develop power 
and transmission rates to the Western Area Power Administration (WAPA) 
Administrator; (2) the authority to confirm, approve, and place such 
rates into effect on an interim basis to the Deputy Secretary of 
Energy; and (3) the authority to confirm, approve on a final basis, 
remand, or disapprove such rates to the Federal Energy Regulatory 
Commission (FERC). By Delegation Order No. S1-DEL-S4-2021, effective 
February 25, 2021, the Acting Secretary of Energy also delegated the 
authority to confirm, approve, and place such rates into effect on an 
interim basis to the Under Secretary for Science (and Energy). By 
Redelegation Order No. S4-DEL-OE1-2021, effective March 25, 2021, the 
Acting Under Secretary for Science (and Energy) redelegated the 
authority to confirm, approve, and place such rates into effect on an 
interim basis to the Assistant Secretary for Electricity. By 
Redelegation Order No. 00-002.10-05, effective July 8, 2020, the 
Assistant Secretary for Electricity further delegated the authority to 
confirm, approve, and place such rates into effect on an interim basis 
to the WAPA Administrator. This redelegation order, despite predating 
the February 2021 delegation and March 2021 redelegation, remains 
valid. This extension is issued under Redelegation Order No. 00-002.10-
05 and

[[Page 48411]]

Department of Energy rate extension procedures set forth at 10 CFR part 
903(a).\3\
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    \3\ 50 FR 37835 (Sept. 18, 1985) and 84 FR 5347 (Feb. 21, 2019).
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Background

    On January 12, 2017, FERC confirmed and approved Rate Schedules PD-
NTS4 (Network), INT-NTS4 (Network), DSW-SD4 (Scheduling, System 
Control, and Dispatch), DSW-RS4 (Reactive Supply and Voltage Control), 
DSW-FR4 (Regulation and Frequency Response), DSW-EI4 (Energy 
Imbalance), DSW-SPR4 (Spinning Reserve), DSW-SUR4 (Supplemental 
Reserve), DSW-GI2 (Generator Imbalance), DSW-TL1 (Transmission Losses), 
and DSW-UU1 (Unreserved Use Penalties) under Rate Order No. WAPA-175 on 
a final basis for a 5-year period through September 30, 2021.\4\ These 
rate schedules apply to Parker-Davis Project and Pacific Northwest-
Pacific Southwest Intertie Project network integration transmission 
service, along with transmission losses, unreserved use penalties, and 
ancillary services from WAPA's Desert Southwestern Region (DSW) and 
Western Area Lower Colorado Balancing Authority (WALC). The existing 
formula rates for these services provide adequate revenue to recover 
all expenses incurred for providing each service. This ensures 
repayment within the cost recovery criteria set forth in DOE Order RA 
6120.2.
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    \4\ Order Confirming and Approving Rate Schedules on a Final 
Basis, FERC Docket Nos. EF16-6-000 and EF16-6-001, 158 FERC ] 62,027 
(2017).
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Discussion

    In accordance with 10 CFR 903.23(a), WAPA filed a notice in the 
Federal Register on July 8, 2021, proposing to extend, without 
adjustment, Rate Schedules PD-NTS4, INT-NTS4, DSW-SD4, DSW-RS4, DSW-
FR4, DSW-EI4, DSW-SPR4, DSW-SUR4, DSW-GI2, DSW-TL1, and DSW-UU1 under 
Rate Order No. WAPA-200.\5\ WAPA determined it was not necessary to 
hold public information or public comment forums on the proposed 
formula rate extension, but provided a 15-day consultation and comment 
period to give the public an opportunity to comment on the proposed 
extension. The consultation and comment period ended on July 23, 2021, 
and WAPA received no comments on the proposed formula rate extension.
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    \5\ 86 FR 36133 (July 8, 2021).
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Ratemaking Procedure Requirements

Environmental Compliance

    WAPA determined that this action fits within the class listed in 
Appendix B to Subpart D of 10 CFR part 1021.410: Categorical exclusions 
applicable to B4.3: Electric power marketing rate changes and B4.4: 
Power marketing services and activities, do not require preparation of 
either an environmental impact statement (EIS) or an environmental 
assessment (EA).\6\ A copy of the categorical exclusion determination 
is available on WAPA's website at https://www.wapa.gov/regions/DSW/Environment/Pages/environment.aspx. Look for file entitled, ``Proposed 
Formula Rates for Network Integration Transmission Service and 
Ancillary Services.''
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    \6\ The determination was done in compliance with the National 
Environmental Policy Act (NEPA) of 1969, as amended, 42 U.S.C. 4321-
4347; the Council on Environmental Quality Regulations for 
implementing NEPA (40 CFR parts 1500-1508); and DOE NEPA 
Implementing Procedures and Guidelines (10 CFR part 1021).
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Determination Under Executive Order 12866

    WAPA has an exemption from centralized regulatory review under 
Executive Order 12866; accordingly, no clearance of this notice by the 
Office of Management and Budget is required.

Submission to the Federal Energy Regulatory Commission

    The Provisional Formula Rates herein confirmed, approved, and 
placed into effect on an interim basis, together with supporting 
documents, will be submitted to FERC for confirmation and final 
approval.

Order

    In view of the above and under the authority delegated to me, I 
hereby confirm, approve, and place into effect on an interim basis, 
Rate Order No. WAPA-200, which extends the existing Network, ancillary 
services, transmission losses, and unreserved use penalties formula 
rates under Rate Schedules PD-NTS4, INT-NTS4, DSW-SD4, DSW-RS4, DSW-
FR4, DSW-EI4, DSW-SPR4, DSW-SUR4, DSW-GI2, DSW-TL1, and DSW-UU1 through 
September 30, 2026. The formula rates will remain in effect on an 
interim basis until: (1) FERC confirms and approves of this extension 
on a final basis; (2) subsequent rates are confirmed and approved; or 
(3) such rates are superseded.

Signing Authority

    This document of the Department of Energy was signed on August 20, 
2021, by Tracey A. LeBeau, Interim Administrator, Western Area Power 
Administration, pursuant to delegated authority from the Secretary of 
Energy. That document, with the original signature and date, is 
maintained by DOE. For administrative purposes only, and in compliance 
with requirements of the Office of the Federal Register, the 
undersigned DOE Federal Register Liaison Officer has been authorized to 
sign and submit the document in electronic format for publication, as 
an official document of the Department of Energy. This administrative 
process in no way alters the legal effect of this document upon 
publication in the Federal Register.

    Signed in Washington, DC, on August 25, 2021.
Treena V. Garrett,
Federal Register Liaison Officer, U.S. Department of Energy.

Rate Schedule PD-NTS4

ATTACHMENT H to Tariff

(Supersedes Rate Schedule PDP-NTS3 dated October 1, 2016, through 
September 30, 2021)

United States Department of Energy Western Area Power Administration

Desert Southwest Region

Parker-Davis Project

Network Integration Transmission Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Transmission customers will compensate the Parker-Davis Project 
each month for Network Integration Transmission Service (Network) under 
the applicable Network Agreement and the formula rate described herein.

Formula Rate

[[Page 48412]]

[GRAPHIC] [TIFF OMITTED] TN30AU21.000

    Based on the formula rate, the Annual Transmission Revenue 
Requirement (ATRR) will be calculated for each fiscal year using 
updated financial data. The ATRR will be effective on October 1st of 
each year and posted on the Western Area Lower Colorado Balancing 
Authority website.

Rate Schedule INT-NTS4

ATTACHMENT H to Tariff

(Supersedes Rate Schedule INT-NTS3 dated October 1, 2016, through 
September 30, 2021)

United States Department of Energy Western Area Power Administration

Desert Southwest Region

Pacific Northwest-Pacific Southwest Intertie Project

Network Integration Transmission Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Transmission customers will compensate the Pacific Northwest-
Pacific Southwest Intertie Project each month for Network Integration 
Transmission Service (Network) under the applicable Network Agreement 
and the formula rate described herein.

Formula Rate
[GRAPHIC] [TIFF OMITTED] TN30AU21.001

    Based on the formula rate, the Annual Transmission Revenue 
Requirement (ATRR) will be calculated for each fiscal year using 
updated financial data. The ATRR will be effective on October 1st of 
each year and posted on the Western Area Lower Colorado Balancing 
Authority website.

Rate Schedule DSW-SD4

SCHEDULE 1 to OATT

(Supersedes Rate Schedule DSW-SD3 dated October 1, 2016, through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Scheduling, System Control, and Dispatch Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Scheduling, System Control, and Dispatch Service is required to 
schedule the movement of power through, out of, within, or into the 
Balancing Authority Area (BA Area). This service can be provided only 
by the operator in which the transmission facilities used for 
transmission service are located. The Western Area Lower Colorado 
Balancing Authority (WALC) performs this service for all Transmission 
Service Providers (TSPs) within its BA Area. The transmission customer 
must purchase this service, unless other arrangements are made with 
WALC.

[[Page 48413]]

    The charge will be applied to all schedules, except for schedules 
that return energy in kind to WALC. WALC will accept any number of 
scheduling changes during the day without additional charge. The charge 
will be allocated equally among all TSPs, both Federal and non-Federal, 
listed on schedules inside its BA Area. The Federal transmission 
segments of the schedule are exempt from invoicing since the costs for 
these segments are included in applicable transmission service rates.

Formula Rate
[GRAPHIC] [TIFF OMITTED] TN30AU21.002

    The charge per schedule, per day, is calculated by dividing the 
annual costs associated with scheduling (numerator) by the number of 
schedules per year (denominator). The numerator is the annual cost of 
transmission scheduling personnel, facilities, equipment, software, and 
other related costs involved in providing the service. The denominator 
is the yearly total of daily tags which result in a schedule, excluding 
schedules that return energy in kind.
    Based on the formula rate, the charge will be calculated each 
fiscal year using updated financial and schedule data. The charge will 
be effective on October 1st of each year and posted on WALC's website.

Rate Schedule DSW-RS4

SCHEDULE 2 to OATT

(Supersedes Rate Schedule DSW-RS3 dated October 1, 2016, through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Reactive Supply and Voltage Control From Generation Sources or Other 
Sources Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    In order to maintain transmission voltages on the transmission 
facilities within acceptable limits, generation facilities and non-
generation resources capable of providing Reactive Supply and Voltage 
Control (VAR Support Service) are operated to produce (or absorb) 
reactive power. This service must be provided for each transaction on 
the transmission facilities within the Balancing Authority (BA) by the 
Transmission Service Provider (TSP) or the BA who performs this 
function for the TSP.
    VAR Support Service will be provided by the Western Area Lower 
Colorado Balancing Authority (WALC). Customers of a Federal TSP must 
purchase this service from WALC unless the transmission customer has 
generating resources capable of providing VAR Support Service directly 
to the Federal TSP and has executed a contract stipulating all the 
provisions of their self-supply. If WALC provides VAR Support Service 
on behalf of any non-Federal TSP, this service will be assessed on 
either the non-Federal TSP's reserved capacity or the scheduled 
quantity of the non-Federal TSP's customers.

Formula Rate
[GRAPHIC] [TIFF OMITTED] TN30AU21.003


[[Page 48414]]


    The numerator consists of the annual revenue requirement for 
generation multiplied by the percentage of resource capacity used for 
providing VAR Support Service. That percentage is based on the 
nameplate power factor (one minus the power factor) for the generating 
units supplying the service within WALC. The denominator consists of 
the transmission transactions within WALC that require this service.
    Based on the formula rate, the charge will be calculated each 
fiscal year using updated financial and reservation data. The charge 
will be effective on October 1st of each year and will be posted on 
WALC's website.

Rate Schedule DSW-FR4

SCHEDULE 3 to OATT

(Supersedes Rate Schedule DSW-FR3 dated October 1, 2016, through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Regulation and Frequency Response Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Regulation and Frequency Response Service (Regulation Service) is 
necessary to provide for the continuous balancing of resources, 
generation and interchange, with load, and for maintaining scheduled 
interconnection frequency at sixty cycles per second (60 Hz). The 
obligation to maintain this balance between resources and load lies 
with the Transmission Service Provider (TSP) or the Balancing Authority 
(BA) who performs this function for the TSP. The Western Area Lower 
Colorado Balancing Authority (WALC) performs this function for the 
Federal TSPs and must offer this service when transmission is used to 
serve load within its Balancing Authority Area (BA Area). Non-Federal 
TSPs and customers of Federal TSPs must purchase Regulation Service 
from WALC or make alternative comparable arrangements to satisfy their 
regulation obligations.

Formula Rate
[GRAPHIC] [TIFF OMITTED] TN30AU21.004

    The numerator includes the annual costs associated with plant-in-
service, operation and maintenance, purchase of regulation products, 
purchases of power to support WALC's ability to regulate, and other 
related costs involved in providing the service. The denominator 
consists of the load within WALC that requires this service plus the 
product of the installed nameplate capacity of solar and wind 
generators serving load within WALC and the applicable capacity 
multipliers.
    Based on the formula rate, the charge will be calculated each 
fiscal year using updated financial and load data. The charge will be 
effective on October 1st of each year and will be posted on the WALC 
website.

Types of Assessments

    There are two different applications of this formula rate:
    (1) A load-based assessment which is applicable to load within WALC 
(total metered load less Federal power allocation, including behind the 
meter generation rating, or if available, hourly data if generation is 
synchronized) and the installed nameplate capacity of all intermittent 
resources serving load within WALC.
    (2) A self-provision assessment which allows entities with 
Automatic Generation Control (AGC) to self-provide for all or a portion 
of their loads. Entities with AGC are known as Sub-Balancing 
Authorities (SBA) and must meet all of the following criteria: (a) Have 
a well-defined boundary, with WALC-approved revenue-quality metering, 
accurate as defined by the North American Electric Reliability 
Corporation (NERC), to include Megawatt (MW) flow data availability at 
6-second or smaller intervals; (b) have AGC responsive unit(s); (c) 
demonstrate Regulation Service capability; and (d) execute a contract 
with WALC, provide all requested data, and meet the SBA error criteria 
below.
    Self-provision is measured by use of the entity's 1-minute average 
Area Control Error (ACE) to determine the amount of self-provision. The 
ACE is used to calculate the Regulation Service charges every hour as 
follows:
    (1) If the entity's 1-minute average ACE for the hour is less than 
or equal to 0.5 percent of its hourly average load, no charge is 
assessed for that hour.
    (2) If the entity's 1-minute average ACE for the hour is greater 
than or equal to 1.5 percent of the entity's hourly average load, WALC 
assesses charges using the hourly load-based assessment applied to the 
entity's peak load for that month.
    (3) If the entity's 1-minute average ACE for the hour is greater 
than 0.5 percent but less than 1.5 percent of its hourly average load, 
WALC assesses charges based on linear interpolation of no charge and 
full charge, using the hourly load-based assessment applied to the 
entity's peak load for that month.
    WALC monitors the entity's self-provision on a regular basis. If 
WALC determines that the entity has not been attempting to self-
regulate, WALC will, upon notification, employ the load-

[[Page 48415]]

based assessment methodology described above.

Alternative Arrangements

    Exporting Intermittent Resource Requirement: An entity that exports 
the output from an intermittent generator to another BA Area will be 
required to dynamically meter or dynamically schedule that resource out 
of WALC to another BA unless arrangements, satisfactory to WALC, are 
made for that entity to acquire this service from a third-party or 
self-supply (as outlined below). An intermittent generator is one whose 
output is volatile and variable due to factors beyond direct 
operational control and, therefore, is not dispatchable.
    Self- or Third-party Supply: WALC may allow an entity to supply 
some or all of its required regulation, or contract with a third party. 
This entity must have revenue quality metering at every load and 
generation point, with accuracy as defined by NERC, to include MW flow 
data availability at 6-second (or smaller) intervals. WALC will 
evaluate the entity's metering, telecommunications and regulating 
resource, as well as the required level of regulation, to determine 
whether the entity qualifies to self-supply under this provision. If 
approved, the entity is required to enter into a separate agreement 
with WALC which will specify the terms of self-supply.

Customer Accommodation

    For entities unwilling to take Regulation Service, self-provide as 
described above, or obtain the service from a third party, WALC will 
assist the entity in dynamically metering its loads/resources to 
another BA. Until such time as meter configuration is accomplished, the 
entity will be responsible for charges assessed under this schedule.

Rate Schedule DSW-EI4

SCHEDULE 4 to OATT

(Supersedes Rate Schedule DSW-EI3 dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Energy Imbalance Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Energy Imbalance Service is provided when there is a difference 
between the scheduled and actual delivery of energy to a load located 
within a Balancing Authority Area (BA Area) over a single hour. The 
Transmission Service Provider (TSP) or the Balancing Authority (BA) who 
performs this function for the TSP must offer this service when 
transmission is used to serve load within its BA Area.
    The Western Area Lower Colorado Balancing Authority (WALC) performs 
this function for the Federal TSP. Customers of a Federal TSP must 
purchase this service from WALC or make alternative comparable 
arrangements to satisfy their Energy Imbalance obligations. Non-Federal 
TSPs must have separate agreements with WALC that specify the terms of 
Energy Imbalance Service. WALC may charge a transmission customer for 
either energy imbalances under this schedule or generator imbalances 
under Schedule 9 for imbalances occurring during the same hour, but not 
both unless the imbalances aggravate rather than offset each other.

Formula Rate

    Charges for energy imbalances are based on the deviation bands as 
follows:
    1. For deviations within 1.5 percent (with a minimum of 
4 MW) of the metered load, the settlement for on-peak and off-peak 
hours is 100 percent.
    2. For deviations greater than 1.5 up to 7.5 percent 
(or greater than 4 MW up to 10 MW) of the metered load, the settlement 
for on-peak hours is 110 percent for under-delivery and 90 percent for 
over-delivery, and the settlement for off-peak hours is 110 percent for 
under-delivery and 75 percent for over-delivery.
    3. For deviations greater than 7.5 percent (or 10 MW) 
of the metered load, the settlement for on-peak hours is 125 percent 
for under-delivery and 75 percent for over-delivery, and the settlement 
for off-peak hours is 125 percent for under-delivery and 60 percent for 
over-delivery.
    The deviation bands will be applied hourly and any energy 
imbalances that occur as a result of the transmission customer's 
scheduled transactions will be netted on a monthly basis and settled 
financially at the end of the month. For purposes of this schedule, the 
proxy prices used to determine financial settlement will be derived 
from the Palo Verde electricity price indexes, or similar alternative, 
for on-peak and off-peak. WALC may accept settlement in energy in lieu 
of financial settlement.
    During periods of BA operating constraints, WALC reserves the right 
to eliminate credits for over-delivery. The cost to WALC of any penalty 
assessed by a regulatory authority due to a violation of operating 
standards resulting from under or over-delivery of energy may be passed 
through to customers.

Rate Schedule DSW-SPR4

SCHEDULE 5 to OATT

(Supersedes Rate Schedule DSW-SPR3 dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Operating Reserve--Spinning Reserve Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Spinning Reserve Service is needed to serve load immediately in the 
event of a system contingency and may be provided by generating units 
that are on-line and loaded at less than maximum output. The 
Transmission Service Provider (TSP) or the Balancing Authority (BA) who 
performs this function for the TSP must offer this service when 
transmission is used to serve load within its BA Area.
    The Western Area Lower Colorado Balancing Authority (WALC) performs 
this function for the Federal TSP. Customers of a Federal TSP must 
purchase this service from WALC or make alternative arrangements to 
satisfy their Spinning Reserve obligations.

Formula Rate

[[Page 48416]]

[GRAPHIC] [TIFF OMITTED] TN30AU21.005

    WALC has no Spinning Reserves available for sale. Upon request, 
WALC will purchase at market price and pass-through the cost plus an 
administrative fee that covers the cost of procuring and supplying 
Spinning Reserves. The customer will be responsible for providing the 
transmission needed to deliver the Spinning Reserves purchased.

Rate Schedule DSW-SUR4

SCHEDULE 6 to OATT

(Supersedes Rate Schedule DSW-SUR3 dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Operating Reserve--Supplemental Reserve Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Supplemental Reserve Service is needed to serve load in the event 
of a system contingency. It is not available immediately to serve load 
but is generally available within a short period of time after a system 
contingency event. This service may be provided by generating units 
that are on-line but unloaded, by quick-start generation, or by 
interruptible load. The Transmission Service Provider (TSP) or the 
Balancing Authority (BA) who performs this function for the TSP must 
offer this service when transmission is used to serve load within its 
BA Area.
    The Western Area Lower Colorado Balancing Authority (WALC) performs 
this function for the Federal TSP. Customers of a Federal TSP must 
purchase this service from WALC or make alternative arrangements to 
satisfy their Supplemental Reserve obligations.

Formula Rate
[GRAPHIC] [TIFF OMITTED] TN30AU21.006

    WALC has no Supplemental Reserves for sale. Upon request, WALC will 
purchase at market price and pass-through the cost plus an 
administrative fee that covers the cost of procuring and supplying 
Supplemental Reserves. The customer will be responsible for providing 
the transmission needed to deliver.

Rate Schedule DSW-GI2

SCHEDULE 9 to OATT

(Supersedes Rate Schedule DSW-GI1 dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region and Western Area Lower Colorado Balancing 
Authority

Generator Imbalance Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Generator Imbalance Service is provided when a difference occurs 
between the output of a generator located in the Balancing Authority 
Area (BA Area) and the delivery schedule from that generator to another 
BA Area or a load within the Transmission Service Provider's (TSP) BA 
Area over a single hour. The TSP or the Balancing Authority (BA) who 
performs this function for the TSP must offer this service, to the 
extent it is physically feasible to do so from its resources or from 
resources available to it, when transmission is used to deliver energy 
from a generator located within its BA Area.
    The Western Area Lower Colorado Balancing Authority (WALC) performs 
this function for the Federal TSP. Customers of a Federal TSP must 
purchase this service from WALC or make alternative comparable 
arrangements to satisfy their generator imbalance obligations. Non-
Federal TSPs must have separate agreements with WALC that specify the 
terms of Generator Imbalance Service. An intermittent resource serving 
load outside WALC will be required to dynamically schedule or 
dynamically meter their generation to another BA Area unless 
arrangements, satisfactory to WALC, are made to acquire this service 
from a third-party. An intermittent resource, for the limited purpose 
of this schedule, is an electric generator that is not dispatchable and 
cannot store its fuel source, and therefore cannot respond to changes 
in demand or respond to transmission security constraints.
    WALC may charge a transmission customer for either generator 
imbalances under this schedule or energy imbalances under Schedule 4 
for imbalances occurring during the same hour, but not both unless the 
imbalances aggravate rather than offset each other.

Formula Rate

    Charges for generator imbalances are based on the deviation bands 
as follows:
    1. For deviations within 1.5 percent (with a minimum of 
4 MW) of the metered generation, the settlement for on-peak and off-
peak hours is 100 percent.
    2. For deviations greater than 1.5 up to 7.5 percent 
(or greater than 4 MW up to 10 MW) of the metered generation, the 
settlement for on-peak hours is 110

[[Page 48417]]

percent for under-delivery and 90 percent for over-delivery, and the 
settlement for off-peak hours is 110 percent for under-delivery and 75 
percent for over-delivery.
    3. For deviations greater than 7.5 percent (or 10 MW) 
of the metered generation, the settlement for on-peak hours is 125 
percent for under-delivery and 75 percent for over-delivery, and the 
settlement for off-peak hours is 125 percent for under-delivery and 60 
percent for over-delivery. An intermittent resource will be exempt from 
this deviation band but will be subject to the settlement provisions in 
the second deviation band for all deviations greater than 7.5 percent (or 10 MW).
    The deviation bands will be applied hourly and any generator 
imbalances that occur as a result of the transmission customer's 
scheduled transactions will be netted on a monthly basis and settled 
financially at the end of the month. For purposes of this schedule, the 
proxy prices used to determine financial settlement will be derived 
from the Palo Verde electricity price indexes, or similar alternative, 
for on-peak and off-peak. WALC may accept settlement in energy in lieu 
of financial settlement.
    During periods of BA operating constraints, WALC reserves the right 
to eliminate credits for over-delivery. The cost to WALC of any penalty 
assessed by a regulatory authority due to a violation of operating 
standards resulting from under or over-delivery of energy may be passed 
through to customers.

Rate Schedule DSW-TL1

(Supersedes Rate Schedule DSW-TL1 Dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region

Western Area Lower Colorado Balancing Authority

Transmission Losses Service

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Capacity and energy losses occur when a Transmission Service 
Provider (TSP) delivers electricity over its transmission facilities 
for a transmission customer. The Western Area Lower Colorado Balancing 
Authority (WALC) provides this service to TSPs within its Balancing 
Authority Area (BA Area). Transmission losses (losses) are assessed for 
transactions on transmission facilities within WALC, unless separate 
agreements specify the terms for losses. The losses applicable to 
Federal TSPs will be passed directly to transmission customers. The 
transmission customer must either purchase this service from WALC or 
make alternative comparable arrangements to satisfy their obligations 
for losses.

Formula Rate

    The loss percentage currently in effect is posted on WALC's website 
and may be changed from time to time. Financial settlement for losses 
will occur on a monthly basis, unless determined by WALC. Proxy prices 
used to determine financial settlement will be derived from the Palo 
Verde electricity price indexes, or similar alternative, for on-peak 
and off-peak. This pricing information is posted on WALC's website.

Rate Schedule DSW-UU1

SCHEDULE 10 to OATT

(Supersedes Rate Schedule DSW-UU1 Dated October 1, 2016, Through 
September 30, 2021)

United States Department of Energy

Western Area Power Administration

Desert Southwest Region

Central Arizona Project

Pacific Northwest-Pacific Southwest Intertie Project

Parker-Davis Project

Unreserved Use Penalties

(Approved Under Rate Order No. WAPA-175)

Effective

    The first day of the first full billing period beginning on or 
after October 1, 2016, and extending through September 30, 2021, or 
until superseded by another rate schedule, whichever occurs earlier. 
[Note: This rate schedule was extended by Rate Order No. WAPA-200 
through September 30, 2026.]

Applicable

    Unreserved use occurs when a customer uses transmission service it 
has not reserved or uses transmission service in excess of its reserved 
capacity. Unreserved use may also include a transmission customer's 
failure to curtail transmission when requested. The transmission 
customer shall compensate the Federal Transmission Service Provider 
(TSP) each month for any unreserved use of the transmission system.

Penalty Rate

    The charge for a transmission customer that engages in unreserved 
use is two times the maximum allowable firm point-to-point transmission 
rate for the service at issue, assessed as follows:
    (1) The penalty for one instance, in a single hour, is based on the 
daily rate;
    (2) The penalty for more than one instance, for any given duration 
(e.g., daily) increases to the next longest duration (e.g., weekly).
    A transmission customer that exceeds its reserved capacity at any 
point of receipt or point of delivery, or a customer that uses 
transmission service at a point of receipt or point of delivery that it 
has not reserved, is required to pay for all ancillary services 
provided by the Federal TSP and associated with the unreserved use. The 
customer will pay for ancillary services based on the amount of 
transmission service it used and did not reserve.
[FR Doc. 2021-18611 Filed 8-27-21; 8:45 am]
BILLING CODE 6450-01-P