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21.5 MW Wood Waste operating in Caledonia, VT — ISO New England Inc.
21.5 MW
Nameplate Capacity
1
Generators
unit
Wood/Wood Waste Biomass
Technology
1992
Operating Since
Coordinates
44.2132, -72.0570
County
Caledonia, VT
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Ryegate Associates, LLC | Ryegate Associates | — |
| Owner(s) | Ryegate Associates, LLC | Capergy US | — |
| Status | Operating | operating | — |
Ryegate Associates, LLC is a 21.5 MW biomass power plant located in Caledonia County, Vermont. The plant, which began operating in 1992, is owned by Capergy US and operated by Ryegate Associates, LLC. It utilizes wood and wood waste (WDS) as its primary fuel source. The facility houses a single generator and ranks as the second-largest of three biomass plants in Vermont, and 54th out of 97 nationally.
The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In the most recent year of reported data, Ryegate Associates generated 149,918 MWh of electricity, achieving a capacity factor of 79.4%.
Generated from EIA, GEM, and public data sources
ISO/RTO
ISO-NE
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
ISO New England Inc. (ISNE)
Grid Voltage
34.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
13.6K MWh
Latest Month
149.9K MWh
Annual Generation
79.4%
Capacity Factor
CO₂ Intensity
0 lb/MWh
NOx
1 lb/MWh
SO₂
0.382 lb/MWh
CH₄
1 lb/MWh
N₂O
0.141 lb/MWh
Capacity Factor
85.4%
Annual Net Gen
161 GWh
CO₂eq
68 lb/MWh
Subregion
NPCC New England
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $75.1M
Market Position
ISO/RTO Market
ISO-NE
LMP Node
—
Pricing Hub
.Z.VERMONT
Node Source
OSM spatial match
Last updated 2026-03-26
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