Connecticut homeowners: Starting October 1, 2026, you can install a plug-in solar system up to 1,200 watts — no electrical permit required. Just plug it into a standard outlet. This is the biggest change to CT solar access law in years.
What HB5340 Does
Connecticut HB5340 (Public Act 2026) removes the electrical permit barrier for plug-in solar devices rated up to 1,200 watts (1.2 kW). As of October 1, 2026, homeowners can purchase, install, and operate these systems without going through the traditional electrical permit process.
The bill was signed into law May 1, 2026, giving Connecticut homeowners a 5-month runway to prepare. The provision takes effect October 1, 2026.
What Qualifies
- Plug-in solar devices (also called "plug-and-play solar" or "balcony solar")
- Rated up to 1,200 watts (1.2 kW)
- Must use a standard 120V or 240V outlet
- Must be listed/labeled equipment (UL or equivalent safety certification)
What Changes October 1
| Period | Permit Required? | What It Means |
|---|---|---|
| Before October 1, 2026 | Yes — electrical permit needed | ~$200–$500 in permit fees + wait time |
| October 1, 2026 onward | No — just plug it in | Same-day installation possible |
What Doesn't Change
- Building/structural permits may still apply depending on installation
- HOA rules still apply (if applicable)
- Utility notification may still be required for grid connection
- Net metering enrollment still required for grid-tied systems
- The RRES program is unchanged — plug-in solar CAN participate
Plug-In Solar vs. Full Rooftop Solar
| Feature | Plug-In Solar (≤1,200W) | Full Rooftop Solar |
|---|---|---|
| Electrical permit required | NO (after Oct 1) | YES |
| Installation cost | $500–$2,000 | $15,000–$30,000 |
| System size | Up to 1.2 kW | 5–15 kW typical |
| Annual output | ~1,500–2,000 kWh | ~7,000–20,000 kWh |
| RRES income eligible | YES | YES |
| Grid connection required | YES | YES |
| Best for | Renters, triers, small loads | Homeowners, long-term |
The RRES Program: How Plug-In Solar Pays You
Connecticut's Residential Renewable Energy Solutions (RRES) Buy-All Tariff pays homeowners for every kWh their solar system produces — regardless of size:
- Current rate: $0.3289 per kWh
- Contract term: 20 years (rate locked)
- Qualifying systems: Any qualifying solar electric system, including plug-in solar ≤1,200W
- How it works: You generate, you export to the grid, Eversource or UI pays you at the RRES rate
For context: the current Eversource supply rate is 11.57¢/kWh (Jul–Dec 2026). The RRES rate of 32.89¢/kWh is nearly 3× the retail supply rate — meaning plug-in solar users earn more from grid exports than they pay for electricity.
Who This Is Right For
Great Fit For:
- Renters who can't install rooftop solar
- Homeowners who want to try solar before committing to a full installation
- Condo/apartment owners with access to a private outdoor outlet
- Anyone who wants to offset a portion of their electricity use
- Those in rental properties where structural modifications aren't allowed
Less Ideal For:
- Homeowners with high electricity usage (need full system)
- Those without suitable outdoor outlet access
- Locations with significant shading
Connecticut Context: Why Now
Connecticut is now one of approximately 8 states with specific plug-in solar laws removing permit barriers. This reflects a broader trend toward "solar access" legislation aimed at making solar available to renters and non-homeowners.
Current CT electricity rates (Jul–Dec 2026):
- Eversource: 11.57¢/kWh supply rate
- UI (United Illuminating): 11.99¢/kWh supply rate
- Average all-in residential rate: ~30¢/kWh
The RRES rate of 32.89¢/kWh already exceeds the average retail rate — plug-in solar users earn more than they pay for grid electricity.
HB5340 Timeline
| Date | Event |
|---|---|
| May 1, 2026 | HB5340 signed into law |
| October 1, 2026 | Permit-free plug-in solar provision takes effect |
| Ongoing | RRES program active — 20-year locked rate, $0.3289/kWh |
Programs funded through 2035 under HB5340.
What To Do Now
- Research plug-in solar equipment — brands like Taotaole, FFoQ, SolarPips (verify UL listing before purchasing)
- Check your electrical panel — ensure you have capacity for a dedicated circuit if needed
- Notify your utility — contact Eversource or UI to initiate net metering/RRES enrollment
- October 1 launch: Connecticut homeowners can install permit-free starting day one
Ready to Go Solar — Full System or Plug-In?
Whether you want to start small with a 1,200W plug-in system or go all-in with a full rooftop installation, we're here to help you understand your options and get started.
View CT Solar IncentivesSources: Connecticut HB5340 (Public Act 2026); PURA Official Rate Board Jul–Dec 2026; PURA Docket No. 17-12-29 (RRES tariff structure). RRES income estimates are approximate based on average CT solar insolation. Individual results vary. Consult a licensed electrician before installation.