Delaware Sustainable Energy Utility  DBA Energize Delaware is a  501(c)(3) nonprofit corporation offering renewable and energy-efficiency programs that help Delawareans reduce their carbon footprint. Programs range from our most popular  Home Performance with ENERGY STAR® home assessments and rebates to low-interest loans that help businesses including farms, nonprofits, congregations,  schools, government, and residents convert to solar or install energy-efficient systems.   The Energize Delaware team and partners are happy to assist Delaware residents as they become energy efficient.

Making Homes More Comfortable and Affordable.

Our programs help improve your home’s coziness and safety while reducing its energy consumption. In-home energy audits identify exactly what’s needed—from new insulation to higher-efficiency appliances and HVAC equipment. All to make your home more comfortable and affordable.

See our residential programs

Improving Bottom Lines For Businesses, Government and Nonprofits.

We also help companies, governments, nonprofits and faith-based organizations save energy and money. We provide commercial-grade energy audits and recommendations, revolving loan and energy investment funds, grants for clean solar and geothermal energy, and other initiatives.

See our nonresidential programs

Our Valued partners.

Energize Delaware partners with utilities, public-advocacy and community-action groups, and other organizations. Together, we offer our programs to people statewide to help protect against volatile energy prices, reduce the environmental impact of energy production and lead Delaware to a sustainable energy future.

Our Partners

The latest on energize delaware news and initiatives.

July 27, 2022

Energize Delaware is pleased to announce the promotions of Suzanne Sebastian to Deputy Director and Athena Bi, Ph.D. to Research, Evaluation, Measurement & Verification (EM&V) Manager. Suzanne joined the Delaware Sustainable Energy Utility (DESEU), DBA Energize Delaware in 2015 as the Program Manager and has advanced her role through the years to take on more…

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July 25, 2022

 The Skating Club of Wilmington (SCW) a 501 (c)(3) corporation has received an energy efficiency low-interest commercial loan from Energize Delaware to purchase a Zamboni electric ice resurfacer, electric ice edger and electric space heaters. “The ice resurfacer is the lifeblood of a skating club. The electric Zamboni is part of our overall energy-efficiency upgrades….

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