Dim Your Bill

01Plug-in solar

Plug-in solar in Delaware

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Is plug-in solar legal in Delaware?

Bill stalled until 2027 Not yet. Delaware's 2026 bill (SB 270) didn't pass; supporters expect to try again in the 2027 session.

Without a dedicated law, a kit that sends power into your home wiring counts as a grid connection under your utility’s rules for rooftop solar. That usually means an interconnection application, and some utilities charge fees or require a licensed installer.

What you can do today:

  • Ask your utility whether it has a simplified process for systems under 1,000 W. A few do.
  • Use solar without touching the grid: a power station charged by portable panels is legal everywhere, including in a rental.
  • Watch the bill. Delaware’s bill is SB 270. We update this page when anything changes.

What a kit would save in Delaware

Kit sizeSolar per yearSaved per year
400 W393 kWh$62
800 W786 kWh$125
1,200 W1,178 kWh$187

Panels on a south-facing balcony railing, Delaware’s average sunshine (NREL PVWatts, state average), today’s price of 18.7¢/kWh, and 85% of the output used at home. Run it for your ZIP code.

See every state’s plug-in solar status, or electricity prices and other rules in Delaware.

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