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Cost by state

Installed premium home solar array with a home battery cost in Hawaii (2026)

A typical Hawaii range, the local factors behind it, and the tools to price your own project.

Reviewed for 2026, updated September 8, 2026.

$29,700
Typical low in Hawaii
$67,500
Typical high in Hawaii
+35%
Versus the national typical range

What drives the cost in Hawaii

Hawaii's retail electricity rates are the highest in the country because generation still depends heavily on imported fuel, so solar payback is short even at high installed prices. Traditional net metering closed years ago, and current interconnection programs generally require a battery so that exports are limited or time-shifted, while a state income tax credit with a cap remains available. Salt air corrosion, island shipping costs, high labor rates and circuit saturation limits all shape quotes here.

Tips for Hawaii buyers

  • Plan on a battery from the start and ask which utility program your circuit is eligible for before designing the array.
  • Specify corrosion-resistant racking and fasteners rated for marine environments.
  • Confirm the state tax credit rules for your island and system type with a tax professional before relying on them.

Ranges are hedged planning estimates derived from a national typical range and a local index, not quotes. A typical installed price before incentives for a premium residential solar array paired with a single home battery; it varies widely with system size, roof type, equipment tier and local labor, and because federal rules for the residential credit changed after 2025, confirm which state and utility incentives actually apply to your installation date rather than assuming a headline discount.

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