Illinois vs New York Solar Comparison
Illinois gets more sun (4.0 hrs/day) while New York has the faster payback (6.5 years).New York offers higher 20-year savings at $48,200.
Illinois
4.0 hrs
9yr payback
$32,600
20yr savings
New York
3.6 hrs
6.5yr payback
$48,200
20yr savings
Side-by-Side Comparison
| Metric | Illinois | New York |
|---|---|---|
| Peak Sun Hours | 4.0 hrs | 3.6 hrs |
| Cost per Watt | $3.15 | $3.40 |
| 6kW System Cost | $18,900 | $20,400 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | 25% |
| State Rebate | None | $5,000 |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 16.27¢/kWh | 24.33¢/kWh |
| Payback Period | 9 years | 6.5 years |
| 20-Year Savings | $32,600 | $48,200 |
Verdict
New York is the better state for solar ROI with $48,200 in 20-year savings and a 6.5-year payback period. Illinois has more sun exposure at 4.0 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 Illinois or New York?
Illinois gets more sun (4 peak hours/day vs 3.6). New York has a faster payback (6.5 years) and New York offers higher 20-year savings ($48,200).
How do solar costs compare between Illinois and New York?
A 6kW system costs $18,900 in Illinois vs $20,400 in New York before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA