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8.4 MW Hydro operating in Grafton, NH — ISO New England Inc.
8.4 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1925
Operating Since
Coordinates
43.5978, -71.7177
County
Grafton, NH
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Central Rivers Power NH, LLC | — | — |
| Owner(s) | Central Rivers Power NH, LLC | — | — |
| Status | Operating | — | — |
Ayers Island is a hydroelectric power plant located in Grafton County, New Hampshire. The plant has a total capacity of 8.4 MW across three generators. It began operating in 1925 and is owned and operated by Central Rivers Power NH, LLC. The primary fuel source for the plant is water (WAT), utilizing conventional hydroelectric technology. Ayers Island is ranked as the 8th largest of 32 power plants in New Hampshire, and 716th out of 1464 plants nationally.
In the most recent year with available data, Ayers Island generated 40,078 MWh of electricity, resulting in a capacity factor of 54.2%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Financial data indicates an installed cost of $1,463.03 per kW, as reported to FERC.
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
3.4K MWh
Latest Month
40.1K MWh
Annual Generation
54.2%
Capacity Factor
Hydroelectric · Public Service Company of New Hampshire · Data from 2015–2017
$1,453/kW
Installed Cost
$30.3/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
ISO-NE
LMP Node
4002 Z_NewHampshire
Pricing Hub
.Z.NEWHAMPSHIRE
Node Source
EIA-860 direct report
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ask pi about Ayers IslandISO New England Inc. (ISNE)
Grid Voltage
34.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP