Program Sustainable Energy Utility
Category Regulatory Policy
Implementing sector State
Last Update
State Delaware
Technologies Solar Water Heat, Solar Photovoltaics
Sectors Residential
The Delaware Sustainable Energy UtilityThe Delaware Sustainable Energy Utility (DESEU) was created in June, 2007 to serve as the "one-stop-shop" for sustainable energy services in Delaware. Through Energize Delaware, the state enables all energy end-users, regardless of market segment, fuel use, or utility service, to have access to incentives for renewable and efficient energy technologies. DESEU manages programs targeting energy efficiency, low income energy use, customer-sited renewable energy, alternative fuel vehicles and clean transportation, and green building. The DESEU also manages the Green Energy Fund in cooperation with the Delaware Energy Office. In 2019, Delaware had a net incremental electricity saving of 22,447 MWh and natural gas and fuel efficiency program savings of 98,788 MMBtu. That year, Delaware was ranked twentieth in the nation by the ACEE for it's state best-practice energy policies. 

Funding and Legislation

To generate additional revenue, DESEU is empowered to charge a fee for aggregating renewable energy credits and selling them on behalf of customer generators. The DESEU can also enter into shared savings arrangements for its energy efficiency programs and can also issue special purpose bonds between 2007 and 2015 which are capped at $30 million. In addition to establishing the DESEU, Senate Substitute 1 for Senate Bill 18 of 2007 also details the structure of the SEU and requires that the state contract with a third-party manager for the DESEU's administration and finances. 


  • Home Performance with ENERGY STAR®
  • Affordable Multifamily Housing
  • Home Energy Counseling and Check-up Program
  • Virtual Home Energy Assessment
  • Energize Delaware Marketplace
  • ZeMod
  • Residential Solar Loans
  • Solar Renewable Energy Credits
  • Empowerment Grant Program
  • Contractor Resources
  • Find a Participating Contractor
  • Weatherization Assistance
  • Green Energy Program

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