Energy (Energy Storage)

This bill changes Maine's business equipment tax exemption rules for large battery storage systems. It specifically removes the tax exemption for systems with a total capacity of 2 megawatts or more. The law directly affects businesses installing or operating commercial-scale battery storage systems (like those used for grid support or large facilities), requiring them to pay taxes on these systems. The key provision clarifies that only smaller battery systems qualify for the existing tax exemption, while larger installations do not.

LD 1258 expands Maine's Electric Vehicle Fund program to allow residents to purchase or lease electric vehicles from out-of-state authorized sellers (like dealerships or manufacturers) if they meet the same standards as in-state sellers. It also clarifies that electric bicycle incentives are limited to low- or moderate-income individuals or organizations serving them, requiring the bike to be their primary commuting vehicle. The bill maintains existing rules that vehicles must be battery electric or plug-in hybrids, registered in Maine, and purchased/leased from eligible sellers meeting program requirements. This change directly affects consumers seeking EVs or e-bikes and providers operating across state lines.

This bill sets a new state target requiring at least 300 megawatts of long-duration battery storage capacity in Maine by December 31, 2035. Long-duration storage is defined as systems using commercially available technology capable of storing energy for eight hours or more. The Governor's Energy Office must reevaluate and potentially increase this goal every two years starting in 2024, reporting updates to the legislature. This policy directly affects energy storage developers, utilities, and infrastructure projects working to meet these targets within Maine.

This bill reverses recent changes to Maine's net energy billing and distributed generation laws. It restores provisions allowing residential and commercial solar customers to receive credits for excess energy sent to the grid ("net energy billing") and clarifies definitions for "distributed generation" (e.g., systems 1-2 MW) and "energy storage systems." The bill sets new state goals for energy storage capacity (300 MW by 2025, 400 MW by 2030) and modifies interconnection rules to prioritize solar and storage projects. It directly affects solar energy customers, utilities, and developers of small-scale renewable projects.

This bill creates a pilot project under Maine's Clean Energy and Sustainability Accelerator to provide direct financing for renewable energy and grid technology projects. It requires the Efficiency Maine Trust to use at least $1 million in accelerator funds within 24 months for debt financing, equity, loans, and other approved services targeting renewable energy generation, energy storage, microgrids, and smart grid applications. The pilot project directly affects renewable energy developers and grid technology providers in Maine by expanding available funding mechanisms. By January 2028, the Trust must report on the pilot's effectiveness to the Legislature's energy committee, including details on funded projects and potential recommendations for continuation.