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12.5 MW Muni. Waste operating in Suffolk, NY — New York Independent System Operator
12.5 MW
Nameplate Capacity
1
Generators
unit
Municipal Solid Waste
Technology
1990
Operating Since
Coordinates
40.7862, -73.1061
County
Suffolk, NY
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Reworld MacArthur Renewable Energy | Reworld Group LLC | — |
| Owner(s) | Islip Resource Recovery Agency | EQT | — |
| Status | Operating | operating | — |
The MacArthur Waste to Energy Facility is a 12.5 MW power plant located in Suffolk County, New York. The facility began operating in 1990 and utilizes municipal solid waste (MSW) as its primary fuel source. It has one generator and is operated by Reworld MacArthur Renewable Energy. The plant is owned by EQT, a company based in Sweden.
In the most recent year of reported data, the MacArthur Waste to Energy Facility generated 54,551 MWh of electricity, achieving a capacity factor of 49.7%. The plant operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. MacArthur is ranked as the 8th largest waste-to-energy plant out of 10 in New York state, and 51st out of 56 nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
New York Independent System Operator (NYIS)
Grid Voltage
13.8 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Municipal
Sector
Commercial Non-CHP
4.6K MWh
Latest Month
54.6K MWh
Annual Generation
49.7%
Capacity Factor
CO₂ Intensity
3539 lb/MWh
NOx
7 lb/MWh
SO₂
5 lb/MWh
CH₄
2 lb/MWh
N₂O
0.289 lb/MWh
Capacity Factor
49.5%
Annual Net Gen
54 GWh
CO₂eq
3677 lb/MWh
Subregion
NPCC Long Island
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $43.7M
Point of Interconnection
Nearest Substation
ISLIP_RES_REC
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
323679
Pricing Hub
NYISO Zone K
Node Source
EIA-860 direct report
Last updated 2026-03-14
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