2.4 MW Hydro operating in Addison, VT — ISO New England Inc.
2.4 MW
Nameplate Capacity
3
Generators
units
Conventional Hydroelectric
Technology
1917
Operating Since
Coordinates
44.0249, -73.1768
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 | — | — |
Lower Middlebury is a 2.4 MW hydroelectric power plant located in Addison County, Vermont. The plant began operating in 1917 and consists of three generators utilizing conventional hydroelectric technology. It is owned by a group of small shareholders and operated by Green Mountain Power Corp.
The plant's primary fuel source is water (WAT). In the most recent year of data, Lower Middlebury generated 4,270 MWh of electricity, achieving a capacity factor of 20.2%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Lower Middlebury ranks as the 29th largest power plant in Vermont out of 46, and 1156th nationally out of 1464 plants.
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
462 MWh
Latest Month
4.3K MWh
Annual Generation
20.2%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.MIDLEBRY46
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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