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Merrimack Station

Merrimack Station 2011Merrimack Station is PSNH’s largest power plant, operating to meet customers’ electricity needs. Merrimack Station produces enough energy to supply 190,000 New Hampshire households, and employs about 100 people.

Guided by state and federal clean power laws, PSNH and its customers have invested in environmental initiatives to reduce emissions at Merrimack Station. The plant today meets or exceeds all environmental regulations; and, with the completion of the Clean Air Project, it is one of the cleanest coal-fired power plants in the nation.

Facts at a Glance

  • Rated output: 439 MW
  • Fuel: coal
  • In-service dates: 1960/1968
  • Mission: Intermediate duty service
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