Connecting Your System to the Grid

We support renewable energy and partner with our customers to ensure safe and reliable interconnection of renewable energy into the electric grid.

After you have researched and selected the renewable generating system that best suits your needs and selected an installation contractor, you or your contractor will need to apply to have your system interconnected to Delmarva Power’s electric grid, pay an application fee, have your new system installed and then inspected by the Delaware Real Estate Commission (DREC), and have a net-capable Delmarva Power electric meter installed at your premise. This complete interconnection process takes approximately 77 business days. Interconnecting ensures that you will continue to have a supply of electricity coming into your home, even when your solar panels are not generating power – at night or when clouds, shade or snow limit generation. The net-capable meter ensures you will receive Delmarva Power bill credits for generation your premise does not use and your system feeds into the grid.

The application process has several key steps to ensure a successful interconnection to the grid. We have provided these simple and easy-to-follow steps to help guide you with the process. You can also download our Net Energy Metering and Small Generator Interconnections Checklist.

Delaware: Download a printable PDF of the application steps and timeline.

Maryland: Download a printable PDF of the application steps and timeline.

Completing the Right Application

Your interconnection process starts with completing an application and agreement based on your proposed system’s nameplate capacity. The table below lists the general interconnection criteria for each application and agreement level. The nameplate capacity is the maximum output, expressed in kilowatts, of an electric generator under specific conditions designated by the manufacturer, as indicated on the nameplate physically attached to the generator.

Inverter NAMEPLATE CAPACITY	Delaware/Maryland APPLICATION AND AGREEMENT level
10 KW OR LESS and inverter-based	LEVEL 1
2 MW or less FOR RADIAL DISTRIBUTION CIRCUIT OR SPOT NETWORK SERVING ONE CUSTOMER	LEVEL 2
Does not export power 50 kw or less for area network 10 mw or less for radial distribution Circuit	Level 3
10 mw or less and not level 1, 2 or 3	level 4

Customers requesting aggregated net energy metering or community net energy metering will need to submit the appropriate-level interconnection application and agreement plus the ANEM or CEF application rider.

Application Fees

Once your application has been received, Delmarva Power’s application system automatically determines if a fee is required and calculates it based on the jurisdiction, system size, and application level. The online system automatically creates and emails an invoice to the contractor or customer.

NAMEPLATE CAPACITY	Delaware/Maryland APPLICATION FEE
LEVEL 1 10 kw or less and inverter-based	No fee
LEVEL 2 2 MW OR LESS FOR RADIAL DISTRIBUTION CIRCUIT OR SPOT NETWORK SERVING ONE CUSTOMER	$50 + $1 per AC Inverter Rating KW
LEVEL 3 does not export power 50 kw or less for area network 10 mw or less or radial distribution Circuit	$100 +$2 per AC INVERTER RATING kw
LEVEL 4 10 MW or less and not Level 1, 2, or 3	$100 +$2 PER AC INVERTER RATING KW
Aggregated net energy metering (ANEM)	No fee
Community net metering Facility (CEF)	No fee (Only Delaware)

Other Forms

Delmarva Power will communicate with you during the application process if the following documents are needed.