OREGON ENVIRONMENTAL COUNCIL et al v. INTERNAL REVENUE SERVICE et al

  1. June 15, 2026

    Solar, Wind Credits Still Clouded After Safe Harbor Revived

    Renewable energy advocates scored a victory when a D.C. federal judge reinstated a safe harbor construction rule for solar and wind projects to access green energy tax credits, but uncertainty persists over the real-world impact while the federal government weighs its next steps.

  2. June 08, 2026

    DC Judge Undoes IRS Wind, Solar Tax Credit Limitations

    A D.C. federal judge has vacated an Internal Revenue Service notice limiting how wind and large-scale solar projects can qualify for two Biden-era clean energy tax credits, finding the Trump administration didn't sufficiently consider reliance interests and explain its rationale for the change.

  3. March 10, 2026

    Feds Urge End To IRS Wind, Solar Safe Harbor Fight

    The Trump administration has told a D.C. federal judge there's no basis to sustain a lawsuit challenging an IRS notice eliminating a safe harbor test that wind and solar projects could use to qualify for clean energy tax credits.

  4. February 23, 2026

    States Back Challenge To IRS Nix Of Wind, Solar Safe Harbor

    Sixteen Democratic-led states are backing a legal challenge to an Internal Revenue Service notice eliminating a safe harbor test that large wind and solar projects could use to qualify for clean energy tax credits.

  5. December 18, 2025

    IRS Guidance Discriminates Against Wind, Solar, Groups Say

    Several groups, including the Natural Resources Defense Council and the city of San Francisco, asked a D.C. federal court Thursday to block the Internal Revenue Service from instituting new tax credit rules that they say illegally discriminate against wind and solar projects.