Solar Panel Cost in Hawaii (2026)
In Hawaii, home solar installs for roughly $3.10/watt in 2026. A typical 8 kW system runs about $24,800, with an estimated payback near 4.6 years at the state's ~42¢/kWh electricity rate.
| System size | Est. cost | Est. annual savings | Payback |
|---|---|---|---|
| 6 kW | $18,600 | $4,000/yr | 4.6 yrs |
| 8 kW | $24,800 | $5,400/yr | 4.6 yrs |
| 11 kW | $34,100 | $7,400/yr | 4.6 yrs |
Estimates use ~$3.10/watt installed and Hawaii's ~42¢/kWh rate. Before any state/local incentives.
Hawaii solar notes
Hawaii ended traditional net metering in 2015; today's 'Customer Grid Supply Plus' and battery-based export programs plus the nation's highest 42¢/kWh rates make solar-plus-storage extremely compelling.
Heads up: the 30% federal tax credit for purchased home solar ended Dec 31, 2025. Leased/PPA systems may still qualify through 2027, and Hawaii may offer its own incentives — check locally.
Get a personalized estimate for your bill
Open the solar calculator →