Is Solar Worth It in Honolulu, HI? (2026 Analysis)

Detailed solar ROI analysis for Honolulu, Hawaii. With 5.7 peak sun hours and electricity at $0.35/kWh, here is what you can expect from going solar.

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$100,644 20-Year Savings
1 yrs Break-Even Timeline
$1,300 Net Cost After Incentives
5.7 hrs Peak Sun Hours/Day
$0.35/kWh Electricity Rate (increasing)
350,964 Population

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20-Year Solar Savings Projection for Honolulu

This projection is based on a 7 kW system with 5.7 peak sun hours and $0.35/kWh electricity rate.

PeriodCumulative SavingsNet PositionStatus
Year 1$5,097$3,797Profitable
Year 2$10,194$8,894Profitable
Year 3$15,291$13,991Profitable
Year 4$20,388$19,088Profitable
Year 5$25,485$24,185Profitable
Year 7$35,679$34,379Profitable
Year 9$45,873$44,573Profitable
Year 11$56,067$54,767Profitable
Year 16$81,552$80,252Profitable
Year 20$101,940$100,640Profitable

Estimates assume stable electricity rates. Actual savings may increase as rates rise.

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$0 down options available. Own your system and claim the 30% federal tax credit. Save up to $5,097/year.

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Solar Investment Breakdown for Honolulu

Gross System Cost 18000
Federal Tax Credit (30%) 5400
State Incentives 11300
Net Cost 1300
Annual Savings 5097

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Local Solar Incentives in Honolulu

Local Programs: Federal ITC plus applicable state and local incentives

Electricity Trend: Rates in Honolulu are currently increasing. Solar locks in your energy costs and provides a hedge against future rate increases.

State Incentives: Hawaii offers a 35% state tax credit, a $5,000 rebate, net metering (transitioning). See all Hawaii incentives.

Financing Options for Honolulu Homeowners

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CashBest ROI. Own immediately.
LoanOwn system + tax credits.
Lease/PPA$0 down. Lower savings.

Best Solar Providers in Honolulu

ProviderTypeHighlightRatingAction
EnergySageMarketplaceCompare Honolulu installers4.8/5Get Quotes
SunrunInstaller$0 down solar in HI4.5/5View Plans
SunPowerPremiumHighest efficiency panels4.6/5Get Quote

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Frequently Asked Questions

Yes. With 5.7 average peak sun hours per day and electricity rates at $0.35/kWh (increasing trend), solar is a strong investment in Honolulu. The estimated 20-year savings is $100,644 with a break-even period of approximately 1 years.
The average solar installation in the Honolulu area costs approximately $18,000 for a 7 kW system before incentives. After the 30% federal tax credit and state incentives, the net cost drops to approximately $1,300.
Federal ITC plus applicable state and local incentives The 30% federal Investment Tax Credit (ITC) is available to all Honolulu homeowners. Check your specific state and utility for additional programs.
A typical home in Honolulu uses a 7 kW system (approximately 18 panels). This produces roughly 14,564 kWh per year based on 5.7 peak sun hours per day.
Electricity rates in Honolulu are currently increasing. The current average rate is $0.35/kWh. Solar locks in your energy costs and protects against future rate increases.

SolarSavingsAI Research Team

Solar Energy Analysts

Our team analyzes solar incentive data from federal (DOE, IRS), state (DSIRE), and utility sources to provide accurate savings estimates. Data is reviewed quarterly and cross-referenced with NREL benchmarks.

Sources: DOE, IRS, DSIRE, NREL, EIA Updated: 2026 Full Methodology Editorial Standards

Your Local Utilities in Hawaii

Review net metering policies and solar programs from utilities serving Honolulu.

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