Solar Panels in Hawaii: Cost, Savings & Incentives (2026)
How much do solar panels cost in Hawaii in 2026? Typical 6.0 kW system: $12,600 after 30% ITC, 4.6-year payback, 6.0 sun hrs/day, 40.8¢/kWh. Free calculators.
Calculate your exact Hawaii numbers
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Hawaii solar decision guides
Data hub — jump to in-depth sizing, bill-based, or policy guides. This page stays focused on rates & incentives.
Hawaii solar snapshot (2026)
A 6 kW system in Hawaii produces roughly 10,512 kWh/year at 6 peak sun hours and 40.8¢/kWh — saving about $4,288/year with ~2-year payback after the 30% ITC.
| Cost item | Amount |
|---|---|
| System cost (6 kW) | $18,000 |
| Federal 30% ITC | −$5,400 |
| Net cost after ITC | $12,600 |
| Est. annual savings | $4,288/yr |
| 25-year net profit (est.) | $94,600 |
Get at least 3 installer quotes — pricing varies up to 30% within the same state.
Hawaii solar incentives
Federal ITC — 30%
All US homeowners qualify for the 30% federal Investment Tax Credit through 2032. On a $18,000 system, that's a $5,400 dollar-for-dollar tax credit.
Hawaii state programs
Hawaii offers a 35% state income tax credit on solar thermal and photovoltaic systems (capped at $5,000 per system for PV). With electricity rates among the highest in the nation at $0.39/kWh, Hawaii homeowners see some of the fastest solar payback periods in the US despite having no net metering under the current Smart Export Tariff structure.
Is solar worth it in Hawaii?
Hawaii combines strong sun hours (6/day) with high electricity rates (40.8¢/kWh) — a solid case for residential solar in 2026. Use the calculators above for a bill-specific estimate, or open a decision guide below for sizing by monthly bill or home sq ft.
Frequently asked questions
Direct answers for US homeowners in Hawaii.