Last reviewed 2026-09-01
Connecticut plug-in solar status
The key facts
- Bill or law
- HB 5340
- Size limit
- 1200 watts
- Enacted
- 2026-05-20
- General effective date
- 2026-10-01
Timing and implementation
- The plug-in-solar framework is not operative until October 1, 2026.
The law allows one plug-in solar device per household at up to 1,200 watts, with no utility approval, interconnection agreement, or added fees required.
Because the plug-in rules take effect October 1, 2026, wait for that date — and for certified products — before relying on the law.
Confirm your local codes and any landlord or homeowners association (HOA) rules before installing.
Before you buy in Connecticut
This page is informational research, not legal advice — and it can fall out of date quickly. Before installing anything, confirm the current law and its start date, any size limit, your local building and fire codes, your utility’s requirements, that the kit is certified as a complete system, your landlord or homeowners association (HOA) rules, a safe way to mount it, and the maker’s instructions.
A “no dedicated statewide law found” status does not settle those other utility, electrical, building, fire, property, or product-safety requirements.
Connecticut plug-in solar FAQ
Is plug-in solar legal in Connecticut?
Connecticut is currently listed as: Enacted — effective later. Connecticut's omnibus solar law, HB 5340 (Public Act 26-127), was signed by Governor Ned Lamont on May 20, 2026. Its plug-in solar provisions take effect October 1, 2026. Always confirm current state law, local code, utility rules, and product certification before installing.
Do I need utility approval for plug-in solar in Connecticut?
That depends on the current state rule, your utility tariff, the product, and your installation. Read the cited sources on this page and confirm directly with your utility before buying or plugging in a kit.
What should I check before buying a plug-in solar kit in Connecticut?
Check the law or bill status, effective date, size limit, utility requirements, complete-system certification, local building and fire codes, landlord or HOA rules, mounting safety, and the manufacturer's instructions.
Estimate your savings in Connecticut
Use the calculator to get a rough idea. For a truer number, swap the national average electricity price for your own rate (it’s on your bill), and remember that surplus power you send back may earn nothing unless your state and utility specifically pay for it.
A planning estimate, not a promise. It doesn’t check whether plug-in solar is legal where you live, whether a kit is certified, whether your outlet or mount is suitable, or whether your utility pays for surplus power.
Sources
- HB 5340 bill statusConnecticut General Assembly; accessed 2026-09-01
- Public Act 26-127Connecticut General Assembly; accessed 2026-09-01