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HYDROELECTRIC PLANTSBear Swamp
Bear Swamp is a 666 MW operating hydroelectric plant in Berkshire County, Massachusetts, operated by Bear Swamp Power Company LLC.
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Generators
Each generating unit EIA lists at this plant.
| Unit | Technology | Capacity | Status |
|---|---|---|---|
| GEN1 | Hydroelectric Pumped Storage | 333 MW | |
| GEN2 | Hydroelectric Pumped Storage | 333 MW |
Plant details
- Operator
- Bear Swamp Power Company LLC
- Location
- Berkshire County, Massachusetts
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
- Capacity
- Operating: 666 MW
- First unit online
- Sep 1974
- EIA plant ID
- 8005
Location
42.6839, -72.9599
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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