Maine grants a business equipment property tax exemption to battery storage systems, as long as more than 50% of the output from the system serves an on-site, behind the meter load, or there was an executed interconnection agreement between the system owner and a utility by January 1, 2025.
The tax exemption addition applies to property tax years beginning on or after April 1, 2026.
| Implementing Sector: | State |
| Category: | Financial Incentive |
| State: | Maine |
| Incentive Type: | Property Tax Incentive |
| Web Site: | https://www.maine.gov/revenue/taxes/tax-relief-credits-programs/property-tax-relief-programs/business-equipment-tax-programs |
| Administrator: | Maine Revenue Services |
| Start Date: | |
| Eligible Renewable/Other Technologies: |
|
| Incentive Amount: | 100% property tax exemption |
| Equipment Requirements: | As long as more than 50% of the system’s output serves an on-site, behind-the-meter load, or the system owner had an executed interconnection agreement with a utility by January 1, 2025. |
| Technologies: | Lithium-ion |
| Sectors: | Commercial |
| Parameters: | The incentive is 100.00 % |
| Name: | L.D. 819 (2025) |
| Name: | Maine Revenue Services |
| Organization: | Property Tax Division |
| Address: |
P.O. Box 9106 Augusta ME 04332 |
| Email: | betr.mrs@maine.gov |
This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.
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