The US Treasury updated a table last week that is used to calculate the domestic content of solar, onshore wind and storage projects to determine whether they qualify for bonus tax credits. The updated table is in Notice 2025-08. The updated table applies to domestic content calculations starting. . On May 16, 2024, the IRS issued Notice 2024-41, which significantly simplifies the calculations to determine if solar, onshore wind and battery projects qualify for a 2% or 10% bonus tax credit for using enough domestic content under the Internal Revenue Code sections 45, 45Y, 48 and 48E. This. . The U. Treasury Department and the Internal Revenue Service have issued a new safe harbor that will make it easier for U. solar, onshore wind and battery storage projects with U. -sourced components to qualify for additional “domestic content bonus” tax credits. The new safe harbor allows taxpayers to determine a. . On May 16, 2024, the Internal Revenue Service (the “ IRS ”) and the Department of the Treasury (“ Treasury ”) published Notice 2024-41 (the “ Notice ”) providing additional guidance on the domestic content bonus credit for certain clean energy tax credits as established by the Inflation Reduction. . To access this domestic content bonus credit, developers can rely on U. -made iron and steel and an array of solar, wind, and batery components that are already domestically produced. 1 Additional domestic capacity, including for segments where U. capacity is limited or still in its nascency, is. .