Energy Efficiency Grants for Nonprofits provide funding for organizations and programs in this focus area. Sources include federal agencies, state programs, and private foundations. Use the listings below to find current opportunities, eligibility requirements, and deadlines — and apply directly to the funder when you find a fit.
ReEnergize Program Status: Active (launched in 2020 as economic recovery stimulus) Geographic Scope: Garfield County, Colorado (western Garfield County for residential; county-wide for businesses)…
Renewable and Energy Efficiency Financing Grant Program Status: Past initiative (2019-2022) Funder: Anonymous donor in partnership with OFN Overview: Four-year partnership between Opportunity Finance…
Renewable Energy Systems and Energy Efficiency Improvements Program REAP Renewable Energy Systems and Energy Efficiency Improvement Program. Refer to Application Package AND Application Instruction…
Renewable Energy Systems and Energy Efficiency Improvements Program REAP Renewable Energy Systems and Energy Efficiency Improvement Program.Refer to Application Package AND Application Instruction…
Renewable Energy Trust (RET) Grant Status: ACTIVE Funder: The Denver Foundation Amount: US $15,000 - US $40,000 Last Updated: March 28, 2026 Summary The Renewable Energy Trust (RET) Grant,…
Research and Development Grant Program Status: ACTIVE Funder: Ohio Water Development Authority (OWDA) Amount: US $200,000 Last Updated: April 01, 2026 Summary The Research and Development Grant…
Residential Clean Energy Grant Program - Organization: Maryland Energy Administration - Type: State Grant
Residential Energy Efficiency Loan Program Award Amount: Loans from $200 to $10,000 at low interest rates Geographic Scope: Jo Daviess, Carroll, Whiteside, and Henry counties, Illinois (service…
Residential Energy Upgrade Program (RE-UP) Status: Launched November 2023 Geographic Scope: Nevada Focus Areas: - Heating, ventilation, air conditioning, and refrigeration (HVAC-R) - Roofing - Solar…
Residential Low-Income Weatherization Program (RLIWP) Funder: Graham County Electric Cooperative in partnership with Southeastern Arizona Community Action Programs (SEACAP) Program Type: Energy…
Residential Rebates Funder: Community Office for Resource Efficiency (CORE) Status: Active, applications accepted on rolling basis Geographic Scope: Pitkin County, Eagle County, and Garfield…
Residential Wind Grant Program - Organization: Energy Administration - Type: State Grant
Resiliency & Affordability (RAP) Program Overview: Citizens Energy charitable program supporting energy resilience and affordability. Geographic Scope: New York (referenced in site navigation)…
Resilient Energy for Wastewater Infrastructure Program Illinois EPA Office of Energy intends to fund the implementation of resilience projects at publicly owned wastewater treatment plants (WWTPs).…
Revive Home Repair Grant Funder: PFCU in partnership with the Federal Home Loan Bank of Indianapolis (FHLBI) Purpose: A grant to assist qualified homeowners with deferred maintenance repairs and…
Revolving Loan Fund Grant Status: ACTIVE Funder: New York State Energy Research and Development Authority (NYSERDA) Amount: Up to US $400,000 Last Updated: November 06, 2025 Summary The New York…
RFP: ADU Accelerator Demonstration Grant Status: ACTIVE Funder: The Massachusetts Clean Energy Center (MassCEC) Amount: Up to US $500,000 Last Updated: July 23, 2025 Summary The Massachusetts Clean…
Rural Energy for America Program (REAP) Funder: United States Department of Agriculture (USDA) Geographic Scope: Western Nebraska and rural communities nationwide Program Type: Grant funding for…
Sales Tax Exclusion (STE) Program CAEATFA supports California's mission to provide financial incentives to cutting-edge companies by offering a sales and use tax exclusion to manufacturers purchasing…
Saving Energy at Home and School Program Funder: National Energy Education Development (NEED) Project Geographic Scope: Multiple communities across United States Focus Areas: Home energy efficiency,…