13 MW Hydro operating in Somerset, ME — ISO New England Inc.
13 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1939
Operating Since
Coordinates
44.9587, -69.8704
County
Somerset, ME
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Brookfield White Pine Hydro LLC | — | — |
| Owner(s) | Brookfield White Pine Hydro LLC | — | — |
| Status | Operating | — | — |
Williams Hydro is a 13 MW hydroelectric power plant located in Somerset County, Maine. The plant began operating in 1939 and is owned and operated by Brookfield White Pine Hydro LLC. It utilizes conventional hydroelectric technology with two generators, drawing power from water (WAT) as its primary fuel source. Williams Hydro operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
In the most recent year with available data, Williams Hydro generated 80,159 MWh of electricity, achieving a capacity factor of 70.2%. The plant is ranked as the 16th largest out of 51 power plants in the state of Maine, and 586th out of 1464 nationally. Recent news coverage related to the plant includes topics such as industry trends, regulatory matters, potential hazards, and grid operations.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
115 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
7.0K MWh
Latest Month
80.2K MWh
Annual Generation
70.2%
Capacity Factor
No financial data available for this plant.
Point of Interconnection
Nearest Substation
Williams Hydro Substation · 115 kV
Substation Distance
0.071 km
Operator
Central Maine Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
UN.WILLIAM 6.9 WILL
Pricing Hub
.Z.MAINE
Node Source
Curated node match
Last updated 2026-03-14
View all 10 articles