Regional Waste Systems
Municipal solid waste power plant in Cumberland County, Maine. 13.3 MW of nameplate capacity across 1 generator, operated by Ecomaine.
Also known as EIA plant 50225
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Key facts
- Capacity
- 13.3 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- June 1988First generator online
- Operator
- EcomaineEIA operator ID 15824
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Cumberland County, ME43.6556, −70.3347
- EIA plant ID
- 50225EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Regional Waste Systems produces
Free · EIA-923Net generation, 2025
88.5 GWh
88,510 MWh, final
Capacity factor, 2025
76.0%
2024: 76.9%
January to July 2026
49.9 GWh
Provisional
Range, 2015 to 2025
39.3–91.6
GWh a year. Low 2022, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 81,453 | Not reported | 12 of 12 |
| 2002 | 79,195 | Not reported | 12 of 12 |
| 2003 | 77,921 | Not reported | 12 of 12 |
| 2004 | 83,058 | Not reported | 12 of 12 |
| 2005 | 83,666 | Not reported | 12 of 12 |
| 2006 | 84,984 | Not reported | 12 of 12 |
| 2007 | 76,912 | Not reported | 12 of 12 |
| 2008 | 72,509 | Not reported | 12 of 12 |
| 2009 | 87,552 | Not reported | 12 of 12 |
| 2010 | 88,592 | 76.0% | 12 of 12 |
| 2011 | 84,833 | 72.8% | 12 of 12 |
| 2012 | 87,173 | 74.6% | 12 of 12 |
| 2013 | 88,646 | 76.1% | 12 of 12 |
| 2014 | 88,085 | 75.6% | 12 of 12 |
| 2015 | 78,226 | 67.1% | 12 of 12 |
| 2016 | 91,636 | 78.4% | 12 of 12 |
| 2017 | 82,934 | 71.2% | 12 of 12 |
| 2018 | 84,173 | 72.2% | 12 of 12 |
| 2019 | 79,415 | 68.2% | 12 of 12 |
| 2020 | 86,187 | 73.8% | 12 of 12 |
| 2021 | 88,154 | 75.7% | 12 of 12 |
| 2022 | 39,254 | 33.7% | 12 of 12 |
| 2023 | 81,125 | 69.6% | 12 of 12 |
| 2024 | 82,270 | 76.9% | 11 of 12 |
| 2025 | 88,510 | 76.0% | 12 of 12 |
| 2026 (provisional, partial year) | 49,941 | 73.8% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| TG1 | Municipal Solid Waste | 13.3 | June 1988 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Ecomaine as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Regional Waste Systems
Questions about Regional Waste Systems
How much power does Regional Waste Systems produce?
Regional Waste Systems reported 88,510 MWh (88.5 GWh) of net generation in 2025, a 76.0% capacity factor on 13.3 MW of nameplate capacity. From January to July 2026 it reported 49.9 GWh, which is provisional.
Where is Regional Waste Systems?
Regional Waste Systems is in Cumberland County, Maine, at 43.6556, −70.3347. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Regional Waste Systems?
EIA-860M for August 2026 lists Ecomaine as the operator (EIA operator ID 15824). The operator is not always the owner.
When did Regional Waste Systems start operating?
Its first generator began operating in June 1988, according to EIA-860M.
Does InfraMap have power prices for Regional Waste Systems?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Regional Waste Systems, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page