Clean natural gas is the preferred fuel to run our dual-fuel generation units, but pricing changes or a lack of fuel can cause a power-supply shortfall, making dual-fuel units valuable
West Medway Generating Station II is owned and operated by West Medway II, a wholly owned subsidiary of Constellation. West Medway Generating Station II is a two-unit, 192-megawatt (MW) simple-cycle, dual-fuel electric generation facility located in West Medway, Massachusetts. The plant primarily uses natural gas and has the ability to also use ultra-low sulfur diesel (ULSD) for no more than 30 days per year.
West Medway Generating Station II went into commercial operation in 2019. Fast-start technology allows it to accelerate from start to full power in 10 minutes, making it ideal to support electric grid reliability by backing up wind and solar power systems. Its high-efficiency turbines, paired with advanced pollution-control technology, make it one of the cleanest peaker plants of its kind in the nation.
West Medway Generating Station II is co-located with a three-unit 124-megawatt oil-fueled power plant, West Medway Generating Station I.