Federal Circuit Ends Alta Wind Appeal, Settling Tax Credit Valuation Dispute
The Federal Circuit's October 7, 2026 dismissal of the government's appeal in Alta Wind I Owner Lessor C v. United States settles how transferred renewable energy tax credits are valued, a ruling developers, offtakers and lenders awaited.
On October 7, 2026, the U.S. Court of Appeals for the Federal Circuit formally dismissed the government's appeal in Alta Wind I Owner Lessor C v. United States, ending a multi-year dispute over the valuation of renewable energy tax credits. As reported by McDermott Will & Emery, the outcome removes the appellate overhang that has shadowed how transferred credits are priced, and the firm's alert frames implications for credit valuations and for how the IRS may approach examinations of those transactions.
The significance is twofold. First, the dismissal leaves the valuation methodology the government challenged in place, which should reduce the discount some developers and offtakers apply when pricing transferred credits, and removes an argument that could have reweighted prices in pending transactions. Second, IRS scrutiny of credit transfer structures is not over: a failed appeal is not agency acquiescence, and examination positions taken during the appeal — including any transfer-pricing or basis documentation theories — remain live.
Practical next steps: refresh credit-transfer valuation models and purchase-and-sale agreement representations, and reassess audit positions given the settled appellate posture. Readers should confirm the precise holding from the docket; this summary relies on a single firm alert and does not detail trial-level rulings.