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Shepaug
37.2 MW hydroelectric power plant · Naugatuck Valley Planning Region, Connecticut
- Operating capacity
- 37.2 MW
- 1 generator
- Main fuel
- Hydroelectric
- First unit online
- 1955
- Generation, 2023
- 163 GWh
Plant details
- EIA plant ID
- 552
- Operator
- FirstLight Power Resources Services LLC
- Sector
- IPP Non-CHP
- Balancing authority
- ISNE
- Location
- 41.4484, -73.2953
Operating generators
Nameplate capacity and the month each began operating
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| Generator | Fuel | Capacity | Online | Status |
|---|---|---|---|---|
| 1Conventional Hydroelectric | Hydroelectric | 37.2 MW | Jan 1955 | Operating |
Generation and emissions, 2023
EPA eGRID annual data
- Net generation
- 163 GWh
- Capacity factor
- 50.1%
Nearby power plants
Within 25 miles
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| Plant | Fuel | Capacity | Distance |
|---|---|---|---|
| Stevenson | Hydroelectric | 30.5 MW | 7.9 mi |
| TRS Fuel Cell | Natural gas | 3.7 MW | 8.3 mi |
| Danbury Hospital Cogen Plant | Natural gas | 4.3 MW | 8.4 mi |
| CPV Towantic Energy Center | Natural gas | 842 MW | 9.2 mi |
| New Milford Gas Recovery | Biomass | 1.6 MW | 9.6 mi |
| Kimberly Clark-Unit 1,2,3 | Natural gas | 36.3 MW | 9.8 mi |
| Rocky River (CT) | Pumped storage hydro | 31.0 MW | 12 mi |
| Kinneytown New Old | Hydroelectric | 2.3 MW | 12 mi |
Frequently asked questions
- How much power can Shepaug produce?
- Shepaug has 37.2 MW of operating nameplate capacity across 1 generator as of August 2026.
- Who operates Shepaug?
- EIA lists FirstLight Power Resources Services LLC as the operator of Shepaug.
- How much electricity did Shepaug generate?
- Shepaug reported 163 GWh of net generation in 2023, according to EPA eGRID.
Source: U.S. Energy Information Administration, Form EIA-860M (August 2026); U.S. EPA eGRID2023 · Data for August 2026