National Solar Capacity Ranking: 46th
Data Current Through: Q3 2025
306
45th (44th in 2024 additions)
49,961 homes
64.03%
1,023
168 (6 Manufacturers, 20 Installers/Developers, 142 Others)
$745 million
42% over the last 10 years
304 MW over the next 5 years (ranks 48th)
17,981
Council of the District of Columbia – Track pending legislation affecting solar energy, locate and contact individual legislators, and stay up to date on current legislative issues in Washington DC
U.S. Energy Information Administration – Washington DC Profile – Explore official energy statistics, including data on electricity supply and demand, from the U.S. government
DSIRE Incentives Database – Washington, D.C. – Search a public clearinghouse for specific solar energy incentives in Washington, D.C. and across the United States
Solar Panel Cost in Washington DC – Learn about the history of solar policy in Washington DC, along with up-to-date pricing information on EnergySage
Solar Rebates & Incentives in Washington DC – Check out EnergySage’s list of key solar incentives in Washington DC to see what programs you can benefit from
Washington DC Public Utilities Commission – Learn about the governing body that regulates the electricity rates and services of Washington DC public utilities
Washington DC Solar Panels Overview – Learn about the history of solar policy in Washington DC, along with up-to-date pricing information on EnergySage
Washington, DC Energy Storage Policy and Market Overview
The District of Columbia has a limited toolkit for advancing microgrids and energy storage deployment. The city has prioritized thoughtful decision-making regarding storage interconnection regulations, equitable incentive programs, and reducing market barriers.
DC published key regulatory guidance detailing interconnection rules for Small Generation Facilities (DC Municipal Regulations Chapter 40). Despite these inclusive regulations, the city currently funds only one demonstration program for energy storage.
In 2023, DC launched the Energy Storage Grant Program, and since has funded two rounds of programming. With its available resources, the city is widening its toolkit to facilitate the growth of storage resources and promote a competitive market. Grant funding, federal tax credits, and favorable interconnection rules are driving Washington, DC’s storage deployment.
Washington, DC Energy Storage Policy Resources