5.5 MW Hydro operating in Washington, VT — ISO New England Inc.
5.5 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1953
Operating Since
Coordinates
44.3813, -72.7677
County
Washington, 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 | — | — |
Waterbury 22 is a hydroelectric power plant located in Washington County, Vermont. The plant, which began operating in 1953, has a total capacity of 5.5 MW from a single generator utilizing conventional hydroelectric technology. The primary fuel source is water (WAT). Green Mountain Power Corp is the plant's operator, though ownership is attributed to small shareholder(s).
The plant operates within the ISO New England Inc. balancing authority and the NPCC NERC region. In the most recent year with available data, Waterbury 22 generated 15,190 MWh, achieving a capacity factor of 31.4%. The plant is ranked 16th out of 46 power plants in Vermont, and 847th nationally out of 1464 plants. Financial data indicates an installed cost of $440.47 per kW, based on FERC filings.
Generated from EIA, GEM, and public data sources
NERC Region
NPCC
Balancing Authority
ISO New England Inc.
Grid Voltage
34.5 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
1.6K MWh
Latest Month
15.2K MWh
Annual Generation
31.4%
Capacity Factor
$1,470/kW
Installed Cost
Green Mountain Power Corp
Reporting Utility
Cumulative Installed Cost
Per-Unit Cost Trends
Point of Interconnection
Nearest Substation
Little River-22 Substation · 35 kV
Substation Distance
< 10 km
Operator
Green Mountain Power
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.VERMONT
Node Source
OSM spatial match
Substation identified. Node ID not yet resolved against ISO roster.
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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