An Act to Clarify the Status of Energy Storage Systems with Regard to the Business Equipment Tax Exemption and the Business Equipment Tax Reimbursement Program
Sponsored By: Eleanor Sato (Democratic)
Signed by Governor
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Bill Overview
Analyzed Economic Effects
1 provisions identified: 1 benefits, 0 costs, 0 mixed.
Tax relief for business battery storage
Beginning with property tax years starting April 1, 2026, battery storage systems qualify for Maine’s business equipment tax exemption and reimbursement. A system qualifies if more than 50% of its output serves load behind the meter at that site, or if there was a fully signed interconnection agreement with the utility by January 1, 2025. The law defines battery storage to include common technologies like lithium‑ion and other mechanical, chemical, or thermal storage. These changes lower property tax or provide reimbursement for qualifying equipment.
Sponsors & Cosponsors
Sponsor
Eleanor Sato
Democratic • House
Cosponsors
John Ducharme
Republican • House
Kathy Javner
Republican • House
Mark Blier
Republican • House
Matthea E. L. Daughtry
Democratic • Senate
Nathan Carlow
Republican • House
Parnell Terry
Democratic • House
Rachel Henderson
Republican • House
Richard A. Bennett
Independent • Senate
Stacy F. Brenner
Democratic • Senate
Roll Call Votes
No roll call votes available for this bill.
Actions Timeline
Signed by Governor, ACTPUB Chapter 467
7/1/2025On motion by Senator ROTUNDO of Androscoggin taken from the Special Appropriations Table PASSED TO BE ENACTED in concurrence.
6/25/2025SenateOn motion by Senator ROTUNDO of Androscoggin PLACED ON THE SPECIAL APPROPRIATIONS TABLE pending ENACTMENT in concurrence.
6/18/2025SenatePASSED TO BE ENACTED. Sent for concurrence. ORDERED SENT FORTHWITH.
6/18/2025HouseReports ReadOn motion by Senator GROHOSKI of Hancock the Majority Ought to Pass as Amended Report ACCEPTED. Bill READ ONCE Committee Amendment "A" (H-770) READ and ADOPTED Under suspension of the Rules, READ A SECOND TIME and PASSED TO BE ENGROSSED AS AMENDED by Committee Amendment "A" (H-770) in concurrence
6/17/2025SenateReports READ.On motion of Representative CLOUTIER of Lewiston, the Majority Ought to Pass as Amended Report was ACCEPTED.The Bill was READ ONCE.Committee Amendment "A" (H-770) was READ and ADOPTED.Under suspension of the rules, the Bill was given its SECOND READING without REFERENCE to the Committee on Bills in the Second Reading.The Bill was PASSED TO BE ENGROSSED as Amended by Committee Amendment "A" (H-770). Sent for concurrence. ORDERED SENT FORTHWITH.
6/17/2025HouseCarried over, in the same posture, to the next special or regular session of the 132nd Legislature, pursuant to Joint Order SP 519.
3/21/2025HouseReceived by the Clerk of the House on February 27, 2025.The Bill was REFERRED to the Committee on TAXATION pursuant to Joint Rule 308.2 and ordered printed pursuant to Joint Rule 401.
2/27/2025House
Bill Text
Amendment C-A (H-770), adopted by House & Senate
Enacted
Introduced
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