Solar Panel Cost in Hawaii (2026)
Installed solar in Hawaii runs about $3.40 per watt — roughly 32% above the national average of $2.58/W. With the federal residential tax credit (25D) gone as of 2026, payback here rests on a $0.42/kWh power price and 5.6 daily peak sun hours.
Worked example: a typical $150/month home in Hawaii
A $150/month electric bill in Hawaii works out to about 4,286 kWh a year. Sizing a cash-purchase system to cover 100% of that:
Last updated June 30, 2026
Hawaii solar numbers
- Installed price
- $3.40 / watt
- Electricity price
- $0.42 / kWh
- Peak sun hours
- 5.6 hrs/day
- State incentive
- 0%
- Net-metering value
- 50% of retail
Local context: The nation's highest electricity prices make solar compelling even though full net metering ended years ago.
Hawaii credits exported power at about 50% of the retail rate (NEM 3.0-style), so a battery to store and self-use your generation usually improves the return here.
Estimate your own Hawaii system
Adjust the bill, ownership, and battery options below — it's pre-set to Hawaii's pricing and sun hours.
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