Alaska vs Delaware Solar Comparison
Delaware gets more sun (4.2 hrs/day) while Delaware has the faster payback (9.8 years).Delaware offers higher 20-year savings at $30,200.
Alaska
3.0 hrs
10.5yr payback
$22,800
20yr savings
Delaware
4.2 hrs
9.8yr payback
$30,200
20yr savings
Side-by-Side Comparison
| Metric | Alaska | Delaware |
|---|---|---|
| Peak Sun Hours | 3.0 hrs | 4.2 hrs |
| Cost per Watt | $3.20 | $3.00 |
| 6kW System Cost | $19,200 | $18,000 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 24.21¢/kWh | 14.94¢/kWh |
| Payback Period | 10.5 years | 9.8 years |
| 20-Year Savings | $22,800 | $30,200 |
Verdict
Delaware is the better state for solar ROI with $30,200 in 20-year savings and a 9.8-year payback period. Delaware has more sun exposure at 4.2 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 Alaska or Delaware?
Delaware gets more sun (4.2 peak hours/day vs 3). Delaware has a faster payback (9.8 years) and Delaware offers higher 20-year savings ($30,200).
How do solar costs compare between Alaska and Delaware?
A 6kW system costs $19,200 in Alaska vs $18,000 in Delaware before incentives. Both qualify for the 30% federal tax credit.
Explore More
Was this data helpful?
Data verified March 2026 · Source: NREL, DSIRE, EIA