Northern Maine ISA

About Us

The NMISA, a non-profit entity responsible for the administration of the northern Maine transmission system and electric power markets in Aroostook and Washington counties, with a load of approximately 130 MW.

The NMISA is responsible for providing an independent, objective and non-discriminatory administration of all transmission access, transmission information access, and related functions, and will monitor and operate the markets in Northern Maine for energy, ancillary, and other services.

The NMISA administers the transmission systems of the investor-owned and cooperatively-owned utilities in Northern Maine, and its members also include all municipally-owned utilities, generators, suppliers of energy, and large retail customers operating in the service area.