State Overview
Delaware
National Solar Capacity Ranking: 47th
Data Current Through: Q3 2025
Delaware State Solar Overview
Despite its small size, Delaware continues to increase its solar capacity at a rapid pace. It is not one of the sunnier states, but strong solar policies are driving the industry. The state’s renewable portfolio standard (RPS) has set a target of achieving 25% of its power from renewables by 2026, with 3.5% required to come from solar. In addition, the state’s net metering law allows third-party solar financing and shared solar, supporting the distributed solar market.
Just The Facts
- Solar Installed (MW):
325
- National Ranking:
47th (42nd in 2025 additions)
- Enough Solar Installed to Power:
39,640 homes
- Percentage of State's Electricity from Solar:
7.95%
- Solar Jobs:
583
- Solar Companies in State:
51 (13 Manufacturers, 23 Installers/Developers, 15 Others)
- Total Solar Investment in State:
$810 million
- Prices have fallen:
42% over the last 10 years
- Growth Projection and Ranking:
576 MW over the next 5 years (ranks 44th)
- Number of Installations:
12,899
Delaware State Solar Policy Resources
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Delaware Public Services Commission – Learn about the governing body that regulates the electricity rates and services of Delaware public utilities
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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
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Delaware Solar Panels Overview – Learn about the history of solar policy in Delaware, along with up-to-date pricing information on EnergySage
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Division of Energy and Climate – Find a wide variety of information on state government energy programs, policy, projects, energy-saving strategies and energy-related statistics
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Delaware’s Renewable Energy Task Force – Provides recommendations on establishing renewable energy trading mechanisms and other structures to support the growth of renewable energy in Delaware.
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DSIRE incentives database Delaware – Search a public clearinghouse for specific solar energy incentives in Delaware and across the United States
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Solar Panel Cost in Delaware – Learn about the history of solar policy in Delaware, along with up-to-date pricing information on EnergySage
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Solar Rebates & Incentives in Delaware – Check out EnergySage’s list of key solar incentives in Delaware to see what programs you can benefit from
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US Energy Information Administration- Delaware State Profile – Explore official energy statistics, including data on electricity supply and demand, from the U.S. government
Data References
Milford
Milford Solar Farm
Milford Solar Farm in Milford was developed by juwi and came online in 2012. This 15 MW project produces enough electricity to power 1,871 homes.
Middletown
Amazon PHL7 Project
Amazon, Home Depot and Brookfield Properties Retail have all gone solar in Delaware. Amazon's PHL7 project in Middletown is one of the largest corporate projects in the state.
Dover
Dover Sun Park
At 11.3 MW, Dover Sun Park in Dover is among the largest solar installations in Delaware. Completed by Sun Power in 2011, this solar project has enough electric capacity to power more than 1,410 homes.
