3 MW Hydro operating in Windsor, VT — ISO New England Inc.
3 MW
Nameplate Capacity
2
Generators
units
Conventional Hydroelectric
Technology
1989
Operating Since
Coordinates
43.6411, -72.4061
County
Windsor, 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 | — | — |
Deweys Mill is a 3 MW hydroelectric power plant located in Windsor County, Vermont. The plant began operating in 1989 and consists of two generators utilizing conventional hydroelectric technology. It is owned by a group of small shareholders and operated by Green Mountain Power Corp. The plant is located within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region.
The plant's installed cost was $1,541.34 per kW, according to FERC data. Deweys Mill ranks as the 26th largest power plant in Vermont out of 46 plants, and 1095th nationally out of 1464 plants. The primary fuel source for the plant is water (WAT).
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
12.47 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
$1,541/kW
Installed Cost
Green Mountain Power Corp
Reporting Utility
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.VERMONT
Node Source
OSM spatial match
Green Mountain Power Corporation; Notice of Application Ready for Environmental Analysis and Soliciting Comments, Recommendations, Terms and Conditions, and Prescriptions
Last updated 2026-03-25
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