Pejepscot Hydroelectric Project — Plant Summary
- EIA Plant ID
- 50758
- Capacity
- 13.5 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Sagadahoc, ME
- Operating Since
- 1987
- Generators
- 4
- Operator
- Topsham Hydro Partners
- Parent Company
- —
- Annual Generation
- 48,554 MWh
- Capacity Factor
- 41.0%
- Balancing Authority
- ISO New England Inc.
- ISO/RTO
- ISONE
- NERC Region
- NPCC
Pejepscot Hydroelectric Project
OperatingHydro
Ranked #12 of 48 Hydro plants in ME#571 of 1454 nationally
13.5 MW Hydro operating in Sagadahoc, ME — ISO New England Inc.
EIAWD
13.5 MW
Nameplate Capacity
4
Generators
units
Conventional Hydroelectric
Technology
1987
Operating Since
Location
Coordinates
43.9573, -70.0241
County
Sagadahoc, ME
Nearby Plants
- Topsham Meadow Solar StationSolar17.2 MW · 2.2 km
- Worumbo Hydro StationHydro19.4 MW · 5.1 km
- Brunswick HydroHydro19.6 MW · 6.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Topsham Hydro Partners | — | — |
| Owner(s) | Topsham Hydro Partners | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Pejepscot Hydroelectric Project is a 13.5 MW hydroelectric power plant located in Sagadahoc County, Maine. The plant began operating in 1987 and is owned and operated by Topsham Hydro Partners. It consists of four generators utilizing conventional hydroelectric technology. Pejepscot is the 15th largest power plant in Maine out of 51, and ranks 581st nationally out of 1464 plants.
In the most recent year with available data, the plant generated 48,554 MWh of electricity, achieving a capacity factor of 41.0%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. The plant's primary fuel source is water (WAT).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
34.5 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
5.1K MWh
Latest Month
48.6K MWh
Annual Generation
41.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidenceMarket Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.MAINE
Node Source
Shared substation inference
487Nearby ISO Node
Topsham SubstationSubstation
News & Articles (2)Beta
Industry·corporate
Maine dams face an uncertain future
Hydropower accounts for roughly half of the renewable energy generated in Maine. What will happen as dams disappear?
Bangor Daily News·1 years ago
Industry·corporate
Maine Delegation Announces $33.8 Million to Upgrade Hydropower Infrastructure
U.S. Senators Susan Collins and Angus King and U.S. Representatives Chellie Pingree and Jared Golden today announced more than $33.8 million...
Susan Collins (other)Angus King (other)
Chellie Pingree (.gov)·1 years ago
Last updated 2026-03-14
View all articles