Solar in Hawaii
Key Solar Metrics
40.6¢/kWh
5.8 peak sun hours
1,066 kWh/kW
Net Billing
4 active programs
Hawaii Renewable Energy Technologies Income Tax Credit
Mixed
Major Utilities
Solar Landscape in Hawaii
Hawaii's electricity market includes both investor-owned utilities and cooperative/municipal providers. Utility-specific solar programs vary by provider. Residential customers should check with their specific utility provider for available solar incentive programs, interconnection requirements, and export credit rates.
Permitting
Hawaii follows local jurisdiction permitting for residential solar installations. Permitting requirements and timelines vary by county and municipality. Homeowners should contact their local building department for specific permit requirements, fees, and inspection schedules. Some jurisdictions in Hawaii have adopted streamlined solar permitting processes to reduce installation timelines.
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Solar Incentives & Rebates
Some incentive data is provisional and subject to verification. Programs may change — check official sources before making decisions.
State Programs
Hawaii Renewable Energy Technologies Income Tax Credit
35% of installed cost, up to $5,000 for residential solar PV
Hawaii Net Billing (Customer Grid Supply)
Hawaii replaced net metering with Customer Grid Supply (CGS) and Customer Self-Supply (CSS) programs. CGS export rate is set by HECO and varies by island.
Hawaii Property Tax Exemption for Solar
Solar energy systems are excluded from property tax assessment in Hawaii.
Hawaii Solar Access Rights
Hawaii HRS 196-7 protects solar access. Restrictions that effectively prevent solar are prohibited.
Hawaii Customer Grid Supply (CGS)
- Policy Type
- Net Billing
- Credit Type
- Time of Use
- Annual Credit Rollover
- No
- Effective Date
- April 1, 2024
Run the Numbers for Hawaii
Solar in Hawaii costs $2.98–$3.60 per watt
National average: $3.36/W
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