Question 1

Is solar really free in Washington, DC?

Accepted Answer

Yes, for qualified properties. Under the 0-Cent Power Purchase Agreement (PPA) model, partner investors pay for 100% of the equipment, installation, and maintenance. In exchange, they collect the high-value Solar Renewable Energy Certificates (SRECs) generated by your system to offset utility compliance fines. You receive all the clean power generated at no cost, lowering your utility bill to $0.

Question 2

Can you mount solar panels on a DC rowhouse roof?

Accepted Answer

Absolutely. DC rowhouses are perfect candidates for solar. Installers use specialized parapet-to-parapet mounting systems. This architectural solution elevates the solar array above obstructions and avoids piercing the flat roof membrane, preventing water leaks and structural wear.

Question 3

How long does utility approval take with Pepco?

Accepted Answer

The utility interconnection and approval process with Pepco typically takes 4 to 8 weeks after installation is complete. Our partner installers manage all the engineering diagrams, permits, and Pepco interconnection filings on your behalf.

Question 4

What is the average payback period for purchased solar systems in DC?

Accepted Answer

If you choose to purchase or finance your system rather than going with a 0-cent PPA, the average payback period is only 4 years in Washington, DC. This exceptionally fast ROI is driven by the combination of federal tax credits, local solar incentives, and the highest SREC prices in the nation.

District of Columbia Solar Registry

Application and Eligibility Request

1. Property Classification & Status