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COVID-19/CoronaVirus Announcement

At Energize Delaware, safety is our top priority. As part of our commitment to safety, we’re closely monitoring developments related to the coronavirus (COVID-19) pandemic and taking appropriate precautions to protect the health and safety of our customers, contractors and employees. We encourage all customers and contractors to take the coronavirus seriously and to practice social distancing and personal hygeine standards.

The majority of Energize Delaware programs are still under operation and have moved all work and meetings to a virtual platform. Effective March 23, we have decided to temporarily suspend in-home appointments for the Home Energy Counseling & Check-up Program (HEC2). You can still sign-up for this important program or get more information by visiting  or by calling 855-314-9966. Once in-home appointments are restarted, we will reach out to schedule a convenient day and time.  We apologize for any inconvenience and thank you for your patience during this challenging time.

As more people are being advised to self-isolate you may be spending more time at home. Learn energy conservation tips and find resources to lower your energy costs at this link:


Delaware Sustainable Energy Utility (DESEU) is who we are—a nonprofit 501(c)(3) organization created by the State of Delaware. Through our many Energize Delaware programs, we help residents, businesses, farmers, schools, religious organizations, nonprofits, hospitals and local governments save money. We do it by providing access to high-efficiency heating, cooling, ventilation and insulation technologies at little or no cost.

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, windows or doors 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.

June 2, 2020

The Delaware Sustainable Energy Utility (DESEU) announces a successful $52,985,000 refinancing of 2011 tax-exempt Energy Efficiency Revenue Bonds (EERB). The refinancing will save the State of Delaware $4,769,271 in present value debt service payment reductions. The true-interest cost of the refinancing is 2.42% The refinancing effort was done in support of projects for these agencies:…

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May 11, 2020

The Lights-On Delaware Strong campaign, a neighborhood public safety and energy efficiency lighting initiative managed by the HELP Initiative, and a valuable Energize Delaware program partner, is currently contacting over 2,600 previous Lights-On clients in low-income communities to inform and educate them about the importance of getting tested for COVID-19 and providing information on health…

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