MMWEC Simple Cycle Gas Turbine
Natural gas power plant in Essex County, Massachusetts. 65 MW of nameplate capacity across 1 generator, operated by Massachusetts Mun Wholes Electric Co.
Also known as EIA plant 63559
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 65 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- July 2024First generator online
- Operator
- Massachusetts Mun Wholes Electric CoEIA operator ID 11806
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Essex County, MA42.5434, −70.9280
- EIA plant ID
- 63559EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power MMWEC Simple Cycle Gas Turbine produces
Free · EIA-923Net generation, 2025
8.31 GWh
8,314 MWh, final
Capacity factor, 2025
1.5%
2024: Not reported
January to July 2026
Not reported
Provisional. 0 of 7 months reported
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | 0 | Not reported | 1 of 12 |
| 2024 | 0 | Not reported | 6 of 12 |
| 2025 | 8,314 | 1.5% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 CAMPDCO₂, 2025
6,136
US short tons. 2024: 12,011
SO₂, 2025
0
US short tons
NOx, 2025
29
US short tons
CO₂ per MWh, calculated
0.74 t
About 1,476 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 63559 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
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 |
|---|---|---|---|
| GT1 | Natural Gas Fired Combustion Turbine | 65.0 | July 2024 |
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 Massachusetts Mun Wholes Electric Co 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 MMWEC Simple Cycle Gas Turbine
More plants operated by Massachusetts Mun Wholes Electric Co
Questions about MMWEC Simple Cycle Gas Turbine
How much power does MMWEC Simple Cycle Gas Turbine produce?
MMWEC Simple Cycle Gas Turbine reported 8,314 MWh (8.31 GWh) of net generation in 2025, a 1.5% capacity factor on 65 MW of nameplate capacity.
Where is MMWEC Simple Cycle Gas Turbine?
MMWEC Simple Cycle Gas Turbine is in Essex County, Massachusetts, at 42.5434, −70.9280. It is in the ISO New England Inc. balancing area (ISNE).
Who operates MMWEC Simple Cycle Gas Turbine?
EIA-860M for August 2026 lists Massachusetts Mun Wholes Electric Co as the operator (EIA operator ID 11806). The operator is not always the owner.
When did MMWEC Simple Cycle Gas Turbine start operating?
Its first generator began operating in July 2024, according to EIA-860M.
Does InfraMap have power prices for MMWEC Simple Cycle Gas Turbine?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to MMWEC Simple Cycle Gas Turbine, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- 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