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13.3 MW Muni. Waste operating in Cumberland, ME — ISO New England Inc.
13.3 MW
Nameplate Capacity
1
Generators
unit
Municipal Solid Waste
Technology
1988
Operating Since
Coordinates
43.6551, -70.3347
County
Cumberland, ME
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 | Ecomaine | Eco Maine Inc | — |
| Owner(s) | Ecomaine | municipally owned | — |
| Status | Operating | operating | — |
Regional Waste Systems is a 13.3 MW waste-to-energy plant located in Cumberland County, Maine. The facility, which began operating in 1988, utilizes municipal solid waste (MSW) as its primary fuel source. It is municipally owned and operated by Ecomaine. The plant has a single generator and ranks second out of three MSW plants in the state, and 49th out of 56 nationally.
The plant operates within the ISO New England Inc. balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In its latest year of operation, Regional Waste Systems generated 88,510 MWh of electricity, achieving a capacity factor of 76.0%.
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
8.1K MWh
Latest Month
88.5K MWh
Annual Generation
76.0%
Capacity Factor
CO₂ Intensity
2401 lb/MWh
NOx
11 lb/MWh
SO₂
2013
$3,495/kW
Est. Construction Cost
Total estimated cost: $46.5M
Market Position
ISO/RTO Market
ISO-NE
LMP Node
4001:Z.Maine
Pricing Hub
.Z.MAINE
Node Source
EIA-860 direct report
Last updated 2026-03-26
View all articlesNo ask pi reports yet for this entity.
ask pi about Regional Waste SystemsISO New England Inc. (ISNE)
Grid Voltage
34.5 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Municipal
Sector
IPP Non-CHP
4 lb/MWh
CH₄
2 lb/MWh
N₂O
0.199 lb/MWh
Capacity Factor
69.6%
Annual Net Gen
81 GWh
CO₂eq
2496 lb/MWh
Subregion
NPCC New England