Situated approximately 29 miles due east of Bristol, in the middle of the Gulf of Maine, lies Matinicus Island, a 750-acre outcrop populated by a year-round community of 30. Since filing for incorporation with the Maine Public Utilities Commission (MPUC) in 1975, Matinicus Plantation Electric Company (MPEC), a municipally-owned electric utility, has been providing quality generation, transmission and distribution services to all ratepayers. With no physical utility connection to the mainland, MPEC generates all of its electricity on-island. Even though population on the island increases over threefold in the summer, the number of MPEC customers connected to the system remains stable throughout the year, with an average of 130 utility service meters.
With the increase in population during the summer months, MPEC is considered to be a summer-peaking utility, with approximately 50 percent of its sales occurring during the June-October period. Regardless, annual sales have seen a remarkable decrease by over 40,000kWh since 2009; even with a slight increase in the number of customers over that period. Recent conservation programs, line losses, or equipment may have led to this decrease.
The project seeks to increase the efficiency and reliability of MPEC’s power generation and provide a model for a renewable microgrid system that could be replicated on other islands and in other small, remote communities. It is expected that the project will replace the outdated, analog switchgear, allowing the generators to seamlessly mate with a battery energy storage system (BESS), and run at maximum efficiency. Increased system efficiency will reduce the island’s costly dependence on diesel fuel and ensure a consistent power supply for decades.
As a utility that is electrically and physically isolated from the mainland grid, MPEC must rely on alternate forms of generation. To date, the sole source of power has been diesel internal combustion generators. This type of generation is relatively inexpensive to install, but expensive to operate and maintain. Historically, however, the combined fuel, operating, and maintenance costs have been less than alternative sources such as solar and wind.
Eva Murray. Wednesday, June 30, 2010
From “Well Out to Sea” and the website of the http://www.matinicushistory.org (Matinicus Island Historical Society)
A local wag penned the following verse:
Cold water is our constant drink.
We used to have good wine,
‘Til Adams on Matinicus came
And made the damned fools sign.
The people on Matinicus
Thought they couldn’t sign at all,
Until they got Squire Young’s consent;
And likewise, Freeman Hall.