2.4 MW Hydro operating in Addison, VT — ISO New England Inc.
2.4 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1912
Operating Since
Coordinates
44.1664, -73.2575
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 | — | — |
Vergennes 9 is a hydroelectric power plant located in Addison County, Vermont. The plant has a total capacity of 2.4 MW derived from three generators utilizing conventional hydroelectric technology. It began operating in 1912 and is owned by a group of small shareholders, with Green Mountain Power Corp. serving as the operator. The plant's primary fuel source is water (WAT).
In the most recent year with available data, Vergennes 9 generated 8,045 MWh of electricity, achieving a capacity factor of 38.1%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. According to available data, the installed cost was $6,827.13 per kW. Vergennes 9 ranks as the 30th largest power plant in Vermont out of 46, and 1158th nationally out of 1464.
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
948 MWh
Latest Month
8.0K MWh
Annual Generation
38.1%
Capacity Factor
$6,918/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
UN.VERGENNE34.5VERD
Pricing Hub
.Z.VERMONT
Node Source
Curated node 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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