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Is Solar Worth It in Hawaii? 2026 Rates & Payback

Is solar worth it in Hawaii?

Strongly recommended

With electricity at 48.0¢/kWh and a payback of just 4.2 years, solar is a strong deal in Hawaii.

Electricity here is 149% more expensive than the national average (~19.3¢/kWh).

Rates in Hawaii rose 34% from 2020 to 2025. If prices rise 3% a year, payback drops to about 4.0 years. Try other scenarios ↓

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Estimates only. Actual results depend on your home, installer and local rules. Learn more: Is solar worth it in 2026? · What if electricity prices rise?

Residential rate

48.0¢

per kWh

Est. monthly bill

$432

at 900 kWh/mo

Solar payback

4.2

years

At 48.0¢/kWh, a home using 900 kWh a month pays about $432. A 6 kW rooftop system here produces roughly 9,000 kWh a year. At $3.00/W ($18,000, before incentives), the savings would pay off the system in about 4.2 years — faster than most states.

Estimate your savings

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Estimate based on average system size and current rates. Actual results vary.

What if electricity prices rise?

Many states have seen rates rise faster than 3% in recent years.

Estimated payback

4.0 yrs

Savings over 10 years

$49,524

Savings over 25 years

$157,504

Do nothing: over 25 years you'd pay about $157,504 for the electricity a 6 kW system would otherwise produce — money that stays with the utility instead of paying off your panels.

Estimates only. Actual results depend on your home, installer and local rules.

Electricity rate trend

From 2020 to 2025, the average residential rate went from 30.3¢ to 40.6¢/kWh — +34% in 5 years.

If rates continue at a similar pace, solar payback shortens further.

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Electricity price trend

Electricity in Hawaii went up 37% since 2015 (about 3.2% per year).

Average residential price, ¢/kWh (EIA yearly data).

25-year savings, flat prices

$108,000

If prices keep rising like they have

$161,874

For a 6 kW system. Yearly price rise capped at 5% in this estimate. Future prices are not guaranteed.

Major utilities & net metering

Hawaiian Electric

Net metering closed; new systems use self-supply or smart export with batteries.

Net metering: Reduced export credit — exported power earns less than retail, so self-use and batteries matter more.

General guide — check your utility for current rates.

Solar installers in Hawaii

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Aloha PV (example)

Featured Partner

Honolulu, HI · 15 yrs in business · NABCEP certified

Solar · Batteries

Serves: HI

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Featured Partners pay for placement. Listings are sample data. Are you an installer? Get listed.

Is your roof solar-ready?

Describe your roof and get a personalized explanation based on Hawaii's rates and sunshine.

AI-generated estimate. Get a professional site assessment before buying.

Data based on EIA and NREL PVWatts (rates for 2026-07). Some figures are sample estimates because a data service was unavailable.