Solar panels in Hawaii
What a residential solar system actually costs in Hawaii in 2026 — plus incentives, payback, and how to pick a vetted installer.
The real cost of solar in Hawaii
A typical 6.5 kW rooftop system in Hawaii runs about $24,375 installed. The federal Residential Clean Energy Credit knocks 30% off — around $7,313 — bringing the net price to roughly $17,062.
Hawaii adds its own incentive: 35% up to $5,000. Stack that on top of the federal credit.
What you'll produce — and save
- ~11,388 kWh/year from a 6.5 kW system at 6.0 peak sun hours.
- At 42.4¢/kWh that's $4,829/yr off your electric bill in year one.
- Estimated payback: 3.5 years.
- 25-year net savings (2.5% annual rate escalation): $147,886.
Estimates only. Actual production depends on roof orientation, shade, equipment and your utility's specific tariff.
Net metering in Hawaii
Hawaii operates under a net billing policy for residential solar exports. Exports are credited at a wholesale/avoided-cost rate rather than the retail rate. Batteries usually improve payback under this policy.
Top Hawaii metros we cover
FAQ
How much do solar panels cost in Hawaii?
A typical 6.5 kW residential system in Hawaii costs about $24,375 before incentives, or roughly $3.75 per watt installed. After the 30% federal tax credit that drops to about $17,062.
Is solar worth it in Hawaii?
With an average residential electricity rate of 42.4¢/kWh and 6.0 peak sun hours per day, a properly sized system typically pays for itself in about 3.5 years and saves roughly $147,886 over 25 years.
Does Hawaii have net metering?
Hawaii operates under a net billing policy for residential solar exports. Exact credit values vary by utility — always confirm with the specific utility serving your address.
What state incentives are available in Hawaii?
State incentive: 35% up to $5,000. Property tax exemption: No. Sales tax exemption: No. The 30% federal Residential Clean Energy Credit also applies.
Get vetted Hawaii installer quotes.
SolarPros only lists installers who pass our licensing, insurance and reputation checks. Free to request — no pressure.
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Sources: EIA average residential electricity rates, NREL PVWatts sun hour data, DSIRE state incentive database, LBNL "Tracking the Sun" installed-cost benchmarks. Figures are estimates for guidance only, not a binding quote.