Connecticut vs Rhode Island Solar Comparison
Connecticut gets more sun (3.8 hrs/day) while Connecticut has the faster payback (6.2 years).Connecticut offers higher 20-year savings at $52,400.
Connecticut
3.8 hrs
6.2yr payback
$52,400
20yr savings
Rhode Island
3.8 hrs
6.5yr payback
$48,600
20yr savings
Side-by-Side Comparison
| Metric | Connecticut | Rhode Island |
|---|---|---|
| Peak Sun Hours | 3.8 hrs | 3.8 hrs |
| Cost per Watt | $3.45 | $3.40 |
| 6kW System Cost | $20,700 | $20,400 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 29.98¢/kWh | 28.08¢/kWh |
| Payback Period | 6.2 years | 6.5 years |
| 20-Year Savings | $52,400 | $48,600 |
Verdict
Connecticut is the better state for solar ROI with $52,400 in 20-year savings and a 6.2-year payback period. Connecticut has more sun exposure at 3.8 hrs/day, making it ideal for maximum energy production. Both states qualify for the 30% federal solar tax credit.
Frequently Asked Questions
Is solar better in Connecticut or Rhode Island?
Connecticut gets more sun (3.8 peak hours/day vs 3.8). Connecticut has a faster payback (6.2 years) and Connecticut offers higher 20-year savings ($52,400).
How do solar costs compare between Connecticut and Rhode Island?
A 6kW system costs $20,700 in Connecticut vs $20,400 in Rhode Island before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA