Solar Panel Savings in Hawaii
Hawaii gets 5.5 peak sun hours per day with electricity at 40¢/kWh. See how much you can save with solar panels.
Solar Panel Cost & Savings by System Size in Hawaii
| System Size | Gross Cost | After Credits | Payback | 25-Year Savings | Annual kWh |
|---|---|---|---|---|---|
| 6 kW | $18,600 | $6,510 | 3.3 yrs | $59,191 | 12,045 |
| 8 kW | $24,800 | $8,680 | 3.3 yrs | $78,921 | 16,060 |
| 10 kW | $31,000 | $10,850 | 3.6 yrs | $94,046 | 20,075 |
| 12 kW | $37,200 | $13,020 | 4.3 yrs | $91,983 | 24,090 |
Includes 30% federal ITC + 35% Hawaii state credit. Assumes 3% annual electricity rate increase and 0.5% panel degradation.
Hawaii Solar Incentives
Hawaii Energy Profile
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Is Solar Worth It in Hawaii?
Hawaii averages 5.5 peak sun hours per day, which means an 8 kW solar system would produce approximately 16,060 kWh per year. At the state's average electricity rate of 40¢/kWh, that translates to significant annual savings on your electric bill.
With the federal 30% Investment Tax Credit and Hawaii's 35% state incentive, an 8 kW system costing $24,800 drops to just $8,680 after credits — with a payback period of approximately 3.3 years.
Over 25 years, homeowners in Hawaii can expect to save $78,921 with an 8 kW system, factoring in panel degradation and rising electricity costs. The combination of excellent sun exposure and strong incentives makes solar a very strong investment in Hawaii.