Treasury and IRS issue definitive regulations for Section 48E Clean Electricity Investment Tax Credits, establishing greenhouse gas intensity certification for solar, wind, geothermal, and advanced nuclear.

WASHINGTON, DC — The United States Department of the Treasury and the Internal Revenue Service (IRS) published final regulatory text and guidance governing the Section 48E Clean Electricity Investment Credit and Section 45Y Clean Electricity Production Credit under the Internal Revenue Code.
The finalized rules complete the statutory transition from legacy energy-specific subsidies to a technology-neutral framework that allows any commercial electricity generation facility with a net-zero greenhouse gas emissions rate to claim a 30% investment tax credit or an inflation-adjusted production credit. The regulations establish certified greenhouse gas life-cycle accounting protocols for solar, utility wind, advanced nuclear, deep geothermal, tidal power, and closed-loop biomass generation facilities.
Treasury Secretary Janet Yellen affirmed that technology-neutral clean electricity tax credits reward clean innovation while providing multi-decade investment certainty for American energy developers.
American Clean Power Association and Nuclear Energy Institute praised the clarity regarding prevailing wage and registered apprenticeship 5x bonus multipliers.
Wall Street clean energy finance desks confirmed that the finalized rules will unlock an estimated $120 billion in private clean power project financings.
The final Section 48E and Section 45Y regulations apply to clean electricity generation facilities placed in service on or after January 1, 2026.
DOE Industrial Efficiency and Decarbonization Office allocates $160 million to replace natural gas boilers with electric thermal energy storage systems in paper, chemical, and food processing plants.

DOE Office of Fossil Energy and Carbon Management announces $75 million for three commercial pilot injection wells in Washington, Oregon, and Idaho that permanently turn dissolved CO2 into solid stone.

CEC commissioners vote 4–0 to approve $100 million in Clean Transportation Program grants, installing bidirectional EV chargers at 250 school bus yards and commercial fleets to back up the grid.
