Clean Energy Technology Leadership Act of 2010 - Amends the Internal Revenue Code to: (1) increase and extend through 2014 the tax credit for investment in a qualifying advanced energy project; (2) increase and extend the tax credit for energy-efficient appliances; (3) allow an enhanced tax deduction between 2011 and 2014 for income attributable to the domestic production of advanced alternative energy technology; (4) allow an elective payment for certain energy property placed in service before January 1, 2013; (5) increase the amount of the national limitation on the issuance of new clean renewable energy bonds; (6) increase in 2011 and 2012 the tax credit for energy research expenses; (7) extend through 2012 the tax credits for new energy efficient homes and the nonbusiness energy credit; (8) increase the rate of the tax deduction for energy efficient commercial building property installed on or in a certified historic structure; (9) allow a new tax credit for qualified natural gas motor vehicles; (10) allow the issuance of tax-exempt natural gas vehicle bonds; (11) allow expensing of the cost of any qualified natural gas vehicle manufacturing facility property; (12) extend through 2012 the parity provisions for transit and parking transportation fringe benefits; (13) extend the tax deduction for alternative fuel vehicle refueling property expenditures; (14) extend through 2012 the income and excise tax credits for biodiesel and renewable diesel; and (15) include within the definition of "cellulosic biofuel," for purposes of the income tax credit for alcohol used as fuel, algae-based biofuel. Directs the Comptroller General to report to Congress by January 1, 2013, evaluating all temporary and permanent energy tax incentives in effect on the date of the report.
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