Me. Rev. Stat. tit. 35-A, § 3351 (2025)
1. Definitions As used in this chapter, unless the context otherwise indicates, the following terms have the following meanings.
A. "Distributed energy resources" means small-scale electrical generation sources located close to where the generated electricity is used, energy storage resources, energy efficiency resources or demand response resources.
[PL 2021, c. 236, §5 (NEW).]
B. "New microgrid" means a group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that acts as a single controllable entity with respect to the electric grid and can connect and disconnect from the electric grid to enable the new microgrid to operate in both electric grid-connected mode and nongrid-connected mode, referred to in this chapter as "island mode," and that is constructed after October 1, 2020.
[PL 2021, c. 236, §5 (NEW).]
[PL 2021, c. 236, §5 (NEW).]
2. Microgrids, public utility exception Notwithstanding section 2102 or any other provision of this Title to the contrary, a person that constructs, maintains or operates a new microgrid approved under subsection 3 does not, solely as a result of furnishing service through that new microgrid to participating consumers, become a public utility and is not subject to regulation as a public utility under this Title.
[PL 2021, c. 236, §5 (NEW).]
3. Commission approval; requirements A person may not construct or operate a new microgrid without commission approval in accordance with this subsection.
A. The commission shall approve a petition to construct and operate a new microgrid if the commission finds that operation of the new microgrid is in the public interest and the new microgrid meets at least the following requirements: For the purposes of this paragraph, when determining whether a proposed new microgrid is in the public interest, the commission shall consider possible ratepayer effects, whether positive or negative; benefits due to the increased resilience or reliability of the electric grid; economic development benefits; and any other factors the commission considers necessary to promote the public interest.
For the purposes of this paragraph, when determining whether a proposed new microgrid is in the public interest, the commission shall consider possible ratepayer effects, whether positive or negative; benefits due to the increased resilience or reliability of the electric grid; economic development benefits; and any other factors the commission considers necessary to promote the public interest.
[PL 2021, c. 236, §5 (NEW).]
B. As a condition of approval of a new microgrid, the commission shall:
(2) Impose any other terms, conditions or requirements on the construction, maintenance or operation of the new microgrid as, in its judgment, it considers necessary, which may include but are not limited to parameters regarding the ability of the new microgrid to enter island mode, as defined by the commission by rule, and the operation of the new microgrid in grid-connected mode and island mode.
[PL 2021, c. 236, §5 (NEW).]
[PL 2021, c. 236, §5 (NEW).]
4. Commission oversight; grid protections; consumer protections A new microgrid approved in accordance with subsection 3 is subject to commission oversight to ensure reliability and security of the electric grid and consumer protections for customers of the new microgrid.
[PL 2021, c. 236, §5 (NEW).]
5. Services Services provided by a new microgrid may include, but are not limited to:
A. Standby electric service, as defined by the commission by rule, when the new microgrid is operating in island mode; and
[PL 2021, c. 236, §5 (NEW).]
B. Selling electricity as a competitive electricity provider when the new microgrid is operating in grid-connected mode.
[PL 2021, c. 236, §5 (NEW).]
[PL 2021, c. 236, §5 (NEW).]
6. Rulemaking The commission may adopt rules to implement this section. Rules adopted under this subsection are routine technical rules pursuant to Title 5, chapter 375, subchapter 2‑A.
[PL 2021, c. 236, §5 (NEW).]
PL 2021, c. 236, §5 (NEW).