Despite its small size, Delaware continues to expand its solar market, driven primarily by growing energy demand and a priority on affordability. While solar resources are more limited compared to sunnier states, policy support such as renewable energy standards and incentive programs have enabled steady growth.
Delaware’s market is largely centered on residential, commercial, and community solar, with continued opportunities to expand deployment through supportive regulatory frameworks and distributed energy initiatives.
SEIA’s Major Solar Projects List is a database of all U.S. ground-mounted solar projects, 1 MW and above, that are either operating, under construction or under development.
349 MWdc
45th (44th in 2025 additions)
41,770 homes
7.28%
583
51 (13 Manufacturers, 23 Installers/Developers, 15 Others)
$857 million
691 MW over the next 5 years (ranks 44th)
13,174
Delaware Public Services Commission – Learn about the governing body that regulates the electricity rates and services of Delaware public utilities
Delaware State Legislature – Track pending legislation affecting solar energy, locate and contact individual legislators, and stay up to date on current legislative issues in Delaware
Delaware Solar Panels Overview – Learn about the history of solar policy in Delaware, along with up-to-date pricing information on EnergySage
DSIRE incentives database Delaware – Search a public clearinghouse for specific solar energy incentives in Delaware and across the United States
Solar Panel Cost in Delaware – Learn about the history of solar policy in Delaware, along with up-to-date pricing information on EnergySage
Solar Rebates & Incentives in Delaware – Check out EnergySage’s list of key solar incentives in Delaware to see what programs you can benefit from
US Energy Information Administration- Delaware State Profile – Explore official energy statistics, including data on electricity supply and demand, from the U.S. government