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47.6 MW Muni. Waste operating in Worcester, MA — ISO New England Inc.
47.6 MW
Nameplate Capacity
1
Generators
unit
Municipal Solid Waste
Technology
1987
Operating Since
Coordinates
42.2212, -71.7672
County
Worcester, MA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Wheelabrator Environmental Systems | Wheelabrator Environmental Systems | — |
| Owner(s) | Wheelabrator Environmental Systems | Wheelabrator Technologies Holdings | WIN Waste Innovations |
| Status | Operating | operating | — |
The Wheelabrator Millbury Facility is a 47.6 MW waste-to-energy power plant located in Worcester County, Massachusetts. The plant, which began operating in 1987, utilizes municipal solid waste (MSW) as its primary fuel source. It consists of a single generator. The facility is owned by Wheelabrator Technologies Holdings and operated by Wheelabrator Environmental Systems.
In the most recent year of reported data, the Wheelabrator Millbury Facility generated 319,206 MWh of electricity, achieving a capacity factor of 76.6%. The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. Among similar MSW-fueled plants in Massachusetts, the Wheelabrator Millbury Facility ranks 3rd out of 5 in terms of capacity, and it ranks 20th out of 56 nationally.
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
115.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Commercial
Sector
IPP Non-CHP
24.4K MWh
Latest Month
319.2K MWh
Annual Generation
76.6%
Capacity Factor
CO₂ Intensity
1823 lb/MWh
NOx
4 lb/MWh
SO₂
3 lb/MWh
CH₄
1 lb/MWh
N₂O
0.153 lb/MWh
Capacity Factor
75.3%
Annual Net Gen
314 GWh
CO₂eq
1896 lb/MWh
Subregion
NPCC New England
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $166.4M
Point of Interconnection
Nearest Substation
Wheelabrator Millbury Facility
Substation Distance
3.026 km
Coord Source
OSM spatial
Market Position
ISO/RTO Market
ISO-NE
LMP Node
LD.VERNONHL13.8
Pricing Hub
.H.INTERNAL_HUB
Location Type
NETWORK NODE
Node Source
Curated node match
Last updated 2026-03-26
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