2.2 MW Hydro operating in Addison, VT — ISO New England Inc.
2.2 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1917
Operating Since
Coordinates
43.9042, -73.0666
County
Addison, VT
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 Silver Lake hydroelectric plant is located in Addison County, Vermont. It has a total capacity of 2.2 MW and began operating in 1917. The plant utilizes conventional hydroelectric technology and is fueled by water (WAT). It consists of a single generator. Green Mountain Power Corp is the listed operator, though ownership is attributed to small shareholder(s).
In the most recent year with available data, the plant generated 4,568 MWh, resulting in a capacity factor of 23.6%. The plant operates within the ISO New England Inc. balancing authority and the NPCC NERC region. Its installed cost was $1,408.79 per kW, according to FERC data. Silver Lake ranks as the 32nd largest power plant in Vermont out of 46, and 1190th nationally out of 1464.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
46 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
596 MWh
Latest Month
4.6K MWh
Annual Generation
23.6%
Capacity Factor
$8,997/kW
Installed Cost
Green Mountain Power Corp
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.VERMONT
Node Source
OSM spatial match
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Last updated 2026-03-25
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