Guide
Solar incentives & the federal tax credit
The federal Investment Tax Credit (ITC) covers 30% of your system cost through 2032. Many states add net metering and local rebates on top. Here is how the credit changes the math, plus where to confirm local incentives.
Federal ITC 30% through 2032
On a 6 kW system $5,400 credit value
Net cost after ITC $12,600 from $18,000 gross
Where solar pays back fastest
Hawaii County, HI
$12,600 net 2.8 yr payback
Kalawao County, HI
$12,600 net 2.9 yr payback
Kauai County, HI
$12,600 net 3.1 yr payback
Aleutians West Census Area, AK
$12,600 net 3.2 yr payback
Haines Borough, AK
$12,600 net 3.6 yr payback
Maui County, HI
$12,600 net 3.6 yr payback
Yakutat City and Borough, AK
$12,600 net 3.7 yr payback
Northwest Arctic Borough, AK
$12,600 net 3.8 yr payback
Honolulu County, HI
$12,600 net 3.8 yr payback
Kusilvak Census Area, AK
$12,600 net 4 yr payback
San Francisco County, CA
$12,600 net 4.4 yr payback
Bristol Bay Borough, AK
$12,600 net 4.6 yr payback
Figures are modeled estimates from NREL PVWatts v8 + EIA. Not affiliated with NREL, DOE or EIA · not financial
advice. Last updated June 2026.