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Solar Panel Cost in Hawaii
6 kW system cost and incentives for Hawaii homeowners.
By Jessica Martinez · Updated June 20266 kW system cost and incentives for Hawaii homeowners.
By Jessica Martinez · Updated June 2026A 6 kW home solar system in Hawaii runs about $27,000 before incentives. For Hawaii homeowners, the 30% federal tax credit brings that to roughly $18,900 out of pocket, a difference of about $8,100.
Hawaii electricity rates regularly exceed 40 cents per kWh on Oahu. The solar cost calculator narrows that down to your actual Hawaii home.
| System size | 6 kW |
|---|---|
| Price before incentives | $27,000 |
| 30% federal tax credit | -$8,100 |
| Price after credit | $18,900 |
Hawaii adds a state income tax credit of up to 35% of system cost, capped at $5,000 per system.
Local Hawaii installers can confirm what applies to your specific address and roof. Use the system size calculator to match panel count to your actual Hawaii usage rather than a flat 6 kW.
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What will a 6 kW system cost me in Hawaii? Plan on about $27,000 before incentives and about $18,900 after the 30% federal credit in Hawaii, which works out to roughly $8,100 in savings.
What else affects solar savings in Hawaii beyond the federal credit? Local Hawaii installers can confirm what applies to your specific address and roof.
Where can I run my own numbers for your Hawaii system? Use the solar cost calculator for installed price, the system size calculator for panel count, and the savings calculator for payback specific to your Hawaii address.