Hawaii vs Utah Solar Comparison
Utah gets more sun (5.6 hrs/day) while Hawaii has the faster payback (4.8 years).Hawaii offers higher 20-year savings at $72,400.
Hawaii
5.5 hrs
4.8yr payback
$72,400
20yr savings
Utah
5.6 hrs
10yr payback
$28,600
20yr savings
Side-by-Side Comparison
| Metric | Hawaii | Utah |
|---|---|---|
| Peak Sun Hours | 5.5 hrs | 5.6 hrs |
| Cost per Watt | $3.50 | $2.85 |
| 6kW System Cost | $21,000 | $17,100 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | 35% | None |
| State Rebate | $5,000 | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 43.18¢/kWh | 11.41¢/kWh |
| Payback Period | 4.8 years | 10 years |
| 20-Year Savings | $72,400 | $28,600 |
Verdict
Hawaii is the better state for solar ROI with $72,400 in 20-year savings and a 4.8-year payback period. Utah has more sun exposure at 5.6 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 Hawaii or Utah?
Utah gets more sun (5.6 peak hours/day vs 5.5). Hawaii has a faster payback (4.8 years) and Hawaii offers higher 20-year savings ($72,400).
How do solar costs compare between Hawaii and Utah?
A 6kW system costs $21,000 in Hawaii vs $17,100 in Utah before incentives. Both qualify for the 30% federal tax credit.
Explore More
Was this data helpful?
Data verified March 2026 · Source: NREL, DSIRE, EIA