Last updated June 13, 2026
There are currently 343 active energy efficiency grants in Grantable's free grants database, drawn from state and foundation sources and updated daily.
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.
Grid Hardening for Small and Rural Communities Grant Program Status: ACTIVE Funder: Colorado Energy Office Amount: Up to US $1,000,000 Last Updated: July 24, 2025 Summary The Grid Hardening for Small…
Heat Pump and HVAC Training Network Grant Status: ACTIVE Funder: The Massachusetts Clean Energy Center (MassCEC) Amount: Up to US $1,200,000 Last Updated: February 27, 2026 Summary Overview Heat Pump…
Heat Pump Program Overview: Installs heat pumps at no cost to eligible homeowners. Geographic Scope: Franklin County, Maine Focus Areas: Energy efficiency through heat pump installation Eligibility…
High Efficiency Heat Pump Program Overview: Provides cash incentives to upgrade or convert to a high-efficiency heat pump. Cash incentives vary depending on the type of heat pump installed.…
Higher Education Clean Energy Grant Program Supports the adoption of on-site renewable energy technologies, the integration of strategic energy planning into operations and academic curricula, and…
Home Repair Program Funder: Polk CDC Geographic Scope: Polk County, Oregon Overview: Polk CDC offers low-interest loans or grants (depending on eligibility) to help homeowners make necessary repairs…
Illinois Climate Pollution Reduction Grant: Community Geothermal Planning and Pilots Phase One Planning Grants Status: ACTIVE Funder: Illinois Department of Financial and Professional Regulation…
Illinois Grocery Initiative - Equipment Upgrades Grant Status: ACTIVE Funder: Illinois Department of Commerce and Economic Opportunity (DCEO) Amount: US $25,000 - US $250,000 Last Updated: April 10,…
Imperial Valley Solar Homes Program Overview: Free rooftop solar panel installation program for low-income homeowners in Imperial Valley, California. Geographic Scope: Imperial County, California…
Indigenous Energy Support Program (IESP) Grant Status: ACTIVE Funder: Independent Electricity System Operator Amount: Up to US $500,000 Last Updated: August 05, 2025 Summary The Indigenous Energy…
Industrial Training and Assessment Center (ITAC) Implementation Grants The U.S. Department of Energy's (DOE) Industrial Training & Assessment Centers Program – formerly known as the Industrial…
INFRASTRUCTURE - Catalyst Program Projects that address transportation, telecommunications, energy, and basic public infrastructure; business and workforce development; health care, nutrition…
Infrastructure Investment and Jobs Act (IIJA) — Speed to Power through Accelerated Reconductoring and other Key Advanced Transmission Technology Upgrades (SPARK) Grant Status: ACTIVE Funder: National…
Intuit Efficiency Mini-Grants Funder: Intuit in partnership with California Green Business Network (CAGBN) Overview: A mini-grant program that financially supports small businesses in sustainability…
Iowa Energy Saving Loans Details - Award Range: No Limit - $2,000,000.00 - Project Dates: - - Recurring: No
Iowa Renewable Fuels Infrastructure Program (RFIP) - E15 Equipment Grants Funder: Iowa Renewable Fuels Association (IRFA) Program Status: Active as of August 2015; expanded to include E15 equipment…
Jane E. Lawton Conservation Loan Program This program provides eligible borrowers with low-interest loans to help install cost-effective energy efficiency and conservation improvements for existing…
JOE-4-SUN Overview: Low-income community shared solar program providing green energy credits to eligible households in Massachusetts. Geographic Scope: Massachusetts Focus Areas: - Renewable energy…
Kentucky NEED Teacher Training Grants (AEP Foundation) Funder: American Electric Power (AEP) Foundation, specifically through Kentucky Power Geographic Scope: Eastern Kentucky (20-county Kentucky…
LEDC's NextGen Impact Fund Loan powered by SELF Program Type: Unsecured personal loan for home improvement Overview: Make your home healthier, safer, and more efficient with an unsecured,…
Energy Efficiency Grants for Nonprofits come from a mix of sources. Federal grants typically have the largest awards but more competition. State programs often pass through federal funding with state-specific priorities. Foundation grants tend to be smaller but more flexible, with funders looking for organizations whose mission aligns with their giving priorities.
Eligibility varies by funder. Most grants require 501(c)(3) nonprofit status, though some are open to schools, government agencies, businesses, or individuals. Each listing on this page links to the source application where you can find specific eligibility criteria, required documents, and how to apply.
Start by reviewing the listings below for grants that match your organization's mission and stage. Click through to each grant's source page for full application details. Most funders require an organizational profile, project narrative, budget, and supporting documents. Apply early — competitive grants often close before their deadline.