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Is Plug-In Solar Legal in Massachusetts?

Gray area, high rates   Avg rate ~30¢/kWh

Last verified: June 14, 2026 · source data

Quick answer: Plug-in (balcony) solar is legal to install in Massachusetts, but there is no plug-in-specific state law as of June 2026 — it falls under your utility’s standard interconnection rules. Average residential electricity rate is around 30¢/kWh. Confirm wattage limits with your utility before buying.
Thinking about installing? See our best plug-in solar kits for 2026 and estimate your yearly savings.

High rates make even small systems worthwhile. Plug-in specifics undefined; confirm interconnection with your utility.

Before you buy in Massachusetts

Call your electric utility and ask: (1) do they allow small plug-in / behind-the-meter grid-tied solar, and (2) is any notification or interconnection form required? Stay within the wattage they specify, use a UL-listed microinverter, and keep written confirmation.

Then estimate your numbers with our savings calculator (pre-loaded with Massachusetts's rate).

Ready to start? Compare the top kits for your home in our Best balcony solar kits 2026 guide →

Nearby states: Rhode Island · Connecticut · New York · New Hampshire · Vermont · see the full 50-state tracker.

Status last reviewed 2026-06-14. Plug-in solar law is evolving quickly — verify current Massachusetts rules and your utility's policy directly. Informational, not legal advice.