West Springfield is the hub of a portfolio of Essential Power owned gas-fired and hydroelectric generating assets located in Western Massachusetts.

West Springfield Generating Station is a peaking facility, operating primarily during periods of peak electrical demand. Units 1 and 2 are two natural gas and oil-fired combustion turbine generators (CTGs), which can generate 48 megawatts (MW) each. They serve as the site’s primary functioning units and operate when called upon to supply the grid with needed power. Unit 3 can generate up to 107 MW using either natural gas or oil when gas supplies are not available. Unit 10, Doreen and Woodland Road units are rapid-start jet engine combustion turbines each with approximately an 20 MW capacity. These units are available to start and run on short notice – including black start capability. As a black start unit-capable facility, this plant can start and deliver power to the power grid when it is essential.

At a Glance:

Units 1 & 2:
Energy used: Natural gas and ultra low-sulfur diesel (ULSD)
Nameplate capacity: 96 MW
Facility type: Combustion turbine
Market: ISO-NE

Unit 3:
Energy used: Natural gas and ultra low-sulfur diesel (ULSD) & No.6 Oil
Nameplate capacity: 107 MW
Facility type: Boiler/Steam turbine
Market: ISO-NE

WS10, Doreen & Woodland:
Energy used: Ultra low-sulfur kerosene (ULSK)
Nameplate capacity: 60 MW
Facility type: Combustion turbine
Market: ISO-NE

Background: West Springfield began in 1949 as a base load-electric generating station owned by Western Massachusetts Electric Company, a subsidiary of Northeast Utilities. The facility originally contained three boilers and steam turbine units. In 1999, the plant was acquired by Con Edison Development and was subsequently sold in 2008 to North American Energy Alliance, Inc., now known as Essential Power™.

Hydroelectric Facilities:

Essential Power operates five run-of-river hydroelectric facilities located on the Chicopee and Deerfield Rivers in Massachusetts.

At a Glance:
Energy used: Water
Nameplate capacity: 18 MW
Facility type: Hydro
Market: ISO-NE

Run of the river methods are inherently more environmentally friendly than big dams. These methods do not flood land or obstruct rivers in ways that adversely restrict marine life movement.

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