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1.3 MW Hydro operating in Strafford, NH — ISO New England Inc.
1.3 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1985
Operating Since
Coordinates
43.2511, -70.8408
County
Strafford, NH
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Green Mountain Power Corp | Green Mountain Power | — |
| Owner(s) | Green Mountain Power Corp | small shareholder(s) | — |
| Status | Operating | — | — |
The Somersworth Lower Great Dam is a hydroelectric power plant located in Strafford County, New Hampshire. The plant has a total capacity of 1.3 MW and consists of a single generator utilizing conventional hydroelectric technology. It began operating in 1985 and is owned by a group of small shareholders. Green Mountain Power Corp is the listed operator per EIA data.
The plant's latest annual generation was 1,331 MWh, resulting in a capacity factor of 11.7%. Somersworth Lower Great Dam operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In terms of size, the plant ranks 28th out of 32 power plants in New Hampshire and 1364th out of 1464 nationally.
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
ISO New England Inc. (ISNE)
Grid Voltage
41.6 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0 MWh
Latest Month
1.3K MWh
Annual Generation
11.7%
Capacity Factor
2013
$2,294/kW
Est. Construction Cost
Total estimated cost: $3.0M
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.NEWHAMPSHIRE
Node Source
OSM spatial match
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