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HYDROELECTRIC PLANTSNorthfield Mountain
Northfield Mountain is a 1,168 MW operating hydroelectric plant in Franklin County, Massachusetts, operated by FirstLight Power Resources, Inc. - MA.
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Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | 292 MW | |
| 2 | Hydroelectric Pumped Storage | 292 MW | |
| 3 | Hydroelectric Pumped Storage | 292 MW | |
| 4 | Hydroelectric Pumped Storage | 292 MW |
Plant details
- Operator
- FirstLight Power Resources, Inc. - MA
- Location
- Franklin County, Massachusetts
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
- Capacity
- Operating: 1,168 MW
- First unit online
- Nov 1972
- EIA plant ID
- 547
Location
42.6107, -72.4716
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Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem