Is Solar Worth It in Hawaii? (2026 Analysis)
Updated 2026-07-07 · MySunROI Research
Solar in Hawaii is financially attractive for many homeowners in 2026. Average payback: 4.3 years. Net cost after ITC: $14,780. Annual savings: ~$3,400.
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Hawaii solar ROI snapshot
- 6 kW net cost after ITC: $14,780
- Estimated payback: 4.3 years
- Electricity rate: 32¢/kWh
- Peak sun hours: 5.7/day
- 30-year savings: $95,200
When solar is worth it in Hawaii
Solar installation costs in Hawaii reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $16,440–$29,050 before the 30% federal tax credit, with net cost around $11,510–$20,340.
- Monthly bill $120+ with south-facing roof
- You purchase (not lease) to claim ITC
- Staying past payback (~4.3 years)
- See full Hawaii cost breakdown
When to wait or skip
- Moving within 3–5 years
- Heavy shading or roof replacement needed soon
- Very low usage under $75/month
Hawaii quick stats
- 6 kW after ITC
- $14,780
- Payback
- 4.3 years
- Electric rate
- 32¢/kWh
- Annual savings
- $3,400
Frequently Asked Questions
What is the payback in Hawaii?
Average 4.3 years for a 6 kW system after the 30% federal credit, based on Hawaii rates and production.
Lease or buy?
Buying usually saves $10k–$30k more over 25 years. See lease vs buy guide.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only — not tax or financial advice. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.