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Federal Power Act Section 202(c): Duke Energy Carolinas, LLC (“DEC”) and Duke Energy Progress, LLC (“DEP”) (collectively, “Duke Energy”) Order No. 202-26-34

Celebrating 250 years of Energy in the United States

This page archives the Alternative Fuels and Feedstocks Office (AFFO), formerly known as the Bioenergy Technologies Office, past solicitations and awardees—from 2007 to the present.

AFFO provides funding for applied research for converting biomass resources into biofuels and bioproducts. Find out more about funding.

H2O offers several resources for hydropower developers to access testing. The Hydropower Testing Network is currently accepting applications for its second round of support, where developers will be matched with appropriate testing facilities.

U.S. Secretary of Energy Chris Wright today released the following statement regarding the Working Families Tax Cut July 4, 2026 deadline ending federal tax credit subsidies for new wind and solar projects not currently under construction.

The U.S. Department of Energy's Office of Energy Dominance Financing celebrates the one-year anniversary of President Trump’s historic Working Families Tax Cuts.

The Commercial Buildings program of the Building Technologies Office (BTO).

Frequently Asked Questions on Small Distributed Wind Systems

U.S. Secretary of Energy Chris Wright today announced the Department of Energy has issued a Notice of Proposed Rulemaking to permanently end home appliance and equipment mandates that raise costs and disrupt consumer choice.