Solar in Maine
Key Solar Metrics
27.8¢/kWh
4.7 peak sun hours
903 kWh/kW
Net Metering
2 active programs
Maine Net Energy Billing
Mixed
Major Utilities
Solar Landscape in Maine
Maine'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
Maine 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 Maine have adopted streamlined solar permitting processes to reduce installation timelines.
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Solar Incentives & Rebates
State Programs
Maine Net Energy Billing
Maine net energy billing provides credits at full retail rate for residential systems. Excess generation rolls over with annual monetary true-up.
Maine Property Tax Exemption for Solar
Solar energy systems are exempt from municipal property tax in Maine.
Maine Net Energy Billing
- Policy Type
- Net Metering
- Credit Type
- Full Retail Rate
- Annual Credit Rollover
- Yes
- Effective Date
- January 1, 2019
Run the Numbers for Maine
Solar in Maine costs $2.88–$3.57 per watt
National average: $3.36/W
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