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Regulations, Rules, Tariffs & Guidelines

​As a public utility, our net metering service to customers is a regulatory responsibility. We are required to follow the interconnection and net energy metering regulations in our service regions. The information below will help you understand and comply with these regulations. Delmarva Power follows and complies with Title 26, Chapter 10, of the Delaware Code and the Interconnection Standards for Delmarva Power & Light Company’s Delaware Operating Territory established by the Delaware Public Service Commission. Delmarva Power also follows and complies with the Code of Maryland Regulations (COMAR)  20.50.09 for Small Generation Interconnection Standards and COMAR 20.50.10 for Net Metering Authority. 

To ensure your successful interconnection with the electric grid, customers should become familiar with our interconnection application and agreements, forms, tariffs and riders, along with the process steps before soliciting a contractor.

​Restricted Circuit Map

In our Delmarva Power region, we may not have an open circuit at your location, making additional interconnections unavailable. This map shows general areas where circuits are restricted. For more information, contact our GPC team.​​

Current Circuit Map Disclaimer

The technological, legal, and regulatory assumptions that apply to solar interconnection issues are complex and constantly evolving. The information and data reflected on this map are for discussion and educational purposes only. To the best of Pepco Holdings, Inc.'s ("PHI") knowledge, the information presented on this map was accurate in all material respects as of as of February 26, 2016. PHI, ACE, DPL, and their respective affiliates and subsidiaries, disclaim any responsibility for the continued accuracy of any of the information found on this map. Please seek appropriate technical, operational, financial, and legal advice before proceeding.

PJM Interconnection

Customers interested in installing large generating facilities and selling power directly to the grid will need wholesale power purchase agreements. PJM Interconnection is a regional transmission organization (RTO) that coordinates the movement of wholesale electricity in all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia. Our Green Power Connection Team will gladly refer you to the department within Delmarva Power that handles wholesale power purchase agreements.

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