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Plug-In Solar in Washington, DC

DC doesn't have a plug-in solar law at present. Under the GRID Act, homeowners and renters could plug in small solar kits without needing Pepco approval, and the bill is still in Council committee.

A home with a plug-in solar panel on the porch railing, the kind of kit Washington, DC's rules apply to

You need approval from your electric utility before connecting in Washington, DC. The inverter has to carry a UL 1741 listing with anti-islanding, or a UL 3700 listing.

The B26-0602 Bill: What It Would Do

If enacted, B26-0602 Takes effect after Mayor approval and after a 30-day Congressional review and publication.

Safety listing: As introduced: the unit must satisfy the most recent National Electrical Code, hold certification from Underwriters Laboratories or another nationally recognized testing laboratory of equivalent standing, and include a feature that blocks it from energizing the wiring in the building while the power is out.

Utility approval: As introduced: the electric company is barred from requiring approval before a device gets installed or used.

Telling the utility: No notice step appears in the introduced text.

Fees: Under the introduced text, the electric company may not charge a fee related to the device or to extra controls or equipment.

Renters and landlords: According to the sponsor, homeowners or renters could put in plug-in systems and skip the rooftop approval process. The introduced text includes no separate rule for landlords.

Net metering: Under the introduced text, interconnection and net metering requirements don't apply to a portable solar device unless its owner chooses to sign an agreement for interconnection or net metering.

  • Damage or injury caused by the device would not make the electric company liable.
  • Most of the bill sets deadlines for Pepco's interconnection work on regular solar systems and speeds it up.

Read the bill text

Today's Rule in Washington, DC

Hooking up: If you connect a small generator today, you must file an Interconnection Request with Pepco. That form is PSC-approved, and the rule comes from 15 DCMR Chapter 40. A Level 1 (inverter-based) request carries no application fee.

Net metering: It exists. Customer-generators that qualify and use renewable resources may join, and PSC rules in 15 DCMR Chapter 9 set the terms.

Kit Savings in Washington, DC

PVWatts shows 1,390 kWh a year for every 1 kW of panels in Washington, and households in Washington, DC pay 24.9 cents for each kWh in 2026 so far. For an 800 W kit, the result depends on where it goes:

Where the panels gokWh a yearSaved a year
Tilted south on a stand1,112$276
Upright on a railing701$174
Facing east or west890$221

Each Month in Washington

kWh made by an 800 W kit tilted south.

Kit Pricing for Washington, DC

KitkWh a yearSaved a yearPays back inPrice
US Solar Supplier 1180 W EZ1 Kit1,640$4082.2 years$899
Bright Saver 360 W Balcony Kit500$1243.3 years$414
EcoFlow STREAM 800 W Kit1,112$2764.0 years$1,099

Tilted south, with all output used at home. Compare all kits

Things to Know in Washington, DC

  • The District's utility is Pepco, yet retail providers sell most of the power. Energy-only providers sold 6.9 million MWh in 2023, measured against the District's 10.1 million MWh total.
  • According to the sponsor, connecting small solar systems took Pepco 77 days on average last year. Plug-in kits would avoid that delay if the bill passes.

Do You Rent or Have a Balcony?

Who decides the mount? Your landlord or HOA. Who decides the hookup? Your electric utility. Read about balcony solar and apartment solar.

Key Utilities

  • Pepco (Potomac Electric Power Company)

Next Steps for You in Washington, DC

  1. Choose your size: in Washington, a 400 W kit produces about 556 kWh a year, while a 1,200 W kit produces about 1,668 kWh. Try yours
  2. Keep an eye on B26-0602 during the next session. If it passes, you may no longer need the approval step.

Sources

Check every state at a glance, or look at a neighbor: Maryland, Delaware, Pennsylvania.