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19.2 MW Hydro operating in Androscoggin, ME — ISO New England Inc.
19.2 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1926
Operating Since
Coordinates
44.1528, -70.2093
County
Androscoggin, ME
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Brookfield White Pine Hydro LLC | — | — |
| Owner(s) | Brookfield White Pine Hydro LLC | — | — |
| Status | Operating | — | — |
Gulf Island is a 19.2 MW hydroelectric power plant located in Androscoggin County, Maine. The plant began operating in 1926 and consists of 3 generators utilizing conventional hydroelectric technology. It is owned and operated by Brookfield White Pine Hydro LLC. Gulf Island is the 11th largest power plant in Maine out of 51 facilities, and ranks 499th nationally out of 1464 plants. The plant's primary fuel source is water (WAT).
In the most recent year with available data, Gulf Island generated 136,286 MWh of electricity, achieving a capacity factor of 77.6%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
11.8K MWh
Latest Month
136.3K MWh
Annual Generation
77.6%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $44.1M
Point of Interconnection
Nearest Substation
Gulf Island Substation · 115 kV
Substation Distance
0.198 km
Operator
Central Maine Power Company
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.GULFISLD34.5
Pricing Hub
.Z.MAINE
Location Type
NETWORK NODE
Node Source
Curated node match
Last updated 2026-03-14
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ask pi about Gulf IslandISO New England Inc. (ISNE)
Grid Voltage
34.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP