To amend the Internal Revenue Code of 1986 to modify and extend certain energy-related tax credits.

Amends the Internal Revenue Code to: (1) extend through 2018 the tax credit for producing electricity from certain renewable resources, including wind, biomass, geothermal energy, landfill gas, refined coal, and hydropower; (2) include marine and hydrokinetic renewable energy as a renewable resource for purposes of such tax credit; (3) extend through 2018 the energy tax credit for solar, fuel cell, and microturbine property; (4) repeal the dollar per kilowatt limitation for fuel cell property for purposes of the energy tax credit; (5) extend the energy tax credit to public electric utilities; and (6) expand and extend through 2018 the tax credit for residential energy efficient property.