Energy Efficiency Grants in California
Last updated October 4, 2026
There are 10 active energy efficiency grants tagged to California, part of 347 active energy efficiency grants listed nationwide. Updated daily.
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| ★ | Grant |
|---|---|
| Cost Share for Federal Clean Energy Funding Opportunities-EPIC Program CA Energy Commission · State Not published · Varies The purpose is to provide cost share funding to applicants that apply for and receive one of the following: An award under an eligible federal Funding Opportunity Announcement (FOA) and meet the requirements of this solicitation, or… | |
| Cost Share for Federal Funding Opportunities Industrial Decarbonization and Improvement of Grid Operations (INDIGO) Program and Food Production Investment Program (FPIP) CA Energy Commission · State Not published · $50M – $500M An award under an eligible federal Funding Opportunity Announcement (FOA) for a project that meets the requirements of this solicitation, or Subsequent funding from the U.S. Department of Energy to continue research from a previously… | |
| Cost-Share for Federal Geothermal Energy Funding Opportunities CA Energy Commission · State Not published · Varies This solicitation is issued under the Geothermal Grant and Loan Program (Geothermal Program). | |
| Replacing, Removing, or Upgrading Underground Storage Tanks Grant State Water Resources Control Board · State Not published · Varies RUST grants may be used to finance up to 100 percent of the costs necessary to upgrade, remove, or replace UST project tanks to comply with the requirements of Health and Safety Code sections 25284.1, 25292.05, 25292.4, 25292.5, or 41954. | |
| Replacing, Removing, or Upgrading Underground Storage Tanks Loan State Water Resources Control Board · State Not published · Varies RUST loans may be used to finance up to 100 percent of the costs necessary to upgrade, remove or replace project tanks, including corrective actions, to meet applicable local state, or federal standards, including, but not limited to, any… | |
| PON-24-002 – K–12 Energy Efficiency Program (KTEP) CA Energy Commission · State Not published · Varies The Kindergarten through Twelfth Grade Energy Efficiency Program’s (KTEP) goal is to provide zero-interest loans to Kindergarten through Twelfth Grade (K-12) schools in California for energy efficiency retrofits and renewable energy… | |
| GFO-21-901 – Cost Share for Federal Clean Energy Funding Opportunities CA Energy Commission · State Not published · Varies To provide cost share funding to applicants that apply for and receive one of the following: An award under an eligible federal Funding Opportunity Announcement (FOA) and meet the requirements of this solicitation, or Follow-on funding… | |
| CAPCOA Woodsmoke Reduction Program California Air Pollution Control Officers Association · Foundation Rolling · Varies The Woodsmoke Reduction Program (est. | |
| CA Green Business Network Efficiency & Electrification Mini-Grants California Green Business Network · Foundation Not published · Varies The California Green Business Network runs mini-grant programs (Intuit Efficiency Mini-Grants; 2025 Electrification Mini-Grants) supporting CA small businesses' sustainability projects; the Intuit program has assisted 62 businesses. | |
| Sales Tax Exclusion (STE) Program State Treasurer's Office · State Not published · Varies CAEATFA supports California's mission to provide financial incentives to cutting-edge companies by offering a sales and use tax exclusion to manufacturers purchasing equipment to promote alternative energy, advanced transportation and… |
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About energy efficiency grants in California
Energy efficiency grants fund building retrofits, weatherization, electrification, and clean-energy programs for nonprofits, local governments, and community organizations. The U.S. Department of Energy (DOE) is the primary federal funder, channeling its Weatherization Assistance Program through states, tribes, and roughly 700 local agencies, while DOE's Office of State and Community Energy Programs administers additional funding. These programs help organizations lower energy costs, improve building performance, and support clean-energy jobs.
Energy Efficiency Grants in other states
Other grant categories in California
Frequently Asked Questions
What energy efficiency grants are available?
Energy efficiency grants fund weatherization, building retrofits, HVAC and insulation upgrades, electrification, and clean-energy workforce programs. The DOE Weatherization Assistance Program is the largest federal source, reducing energy costs for low-income households through local agencies, and DOE state and community energy programs offer additional funding. State energy offices and utilities also administer efficiency rebates and grants.
Who funds energy efficiency projects?
The U.S. Department of Energy is the leading federal funder, distributing formula grants to all 50 states, the District of Columbia, tribes, and U.S. territories, which then contract with community action agencies, nonprofits, and local governments. State energy offices, regional utilities, and private foundations focused on climate and housing also fund efficiency work. Eligibility depends on the program — many flow through state or local administrators rather than direct federal awards.
How do nonprofits access weatherization and retrofit funding?
Many federal energy efficiency dollars reach nonprofits indirectly: DOE awards funds to states and tribes, which then contract with local agencies to deliver weatherization services. Nonprofits should connect with their state energy office or local community action agency to learn about sub-grant opportunities and income-eligibility rules. Some competitive DOE and foundation programs also fund nonprofit-led building retrofits and clean-energy initiatives directly.
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