A L Pierce
Natural gas power plant in New Haven County, Connecticut. 84 MW of nameplate capacity across 1 generator, operated by MPH AL Pierce, LLC.
Also known as A L Pierce Power Plant · A.L. Pierce · AL Pierce · EIA plant 6635
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 84 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- October 2007First generator online
- Operator
- MPH AL Pierce, LLCEIA operator ID 66605
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- New Haven County, CT41.4482, −72.8349
- EIA plant ID
- 6635EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power A L Pierce produces
Free · EIA-923Net generation, 2025
0 MWh
0 MWh, final
Capacity factor, 2025
0.0%
2024: 0.0%
January to July 2026
0 MWh
Provisional
Range, 2015 to 2025
0.0–5.1
GWh a year. Low 2023, high 2021
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 0 | Not reported | 12 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 | 8,094 | Not reported | 12 of 12 |
| 2008 | 2,970 | Not reported | 6 of 12 |
| 2009 | 3,721 | Not reported | 12 of 12 |
| 2010 | 5,145 | 0.7% | 12 of 12 |
| 2011 | 4,789 | 0.7% | 12 of 12 |
| 2012 | 6,608 | 1.0% | 11 of 12 |
| 2013 | 9,060 | 1.2% | 12 of 12 |
| 2014 | 6,241 | 1.3% | 8 of 12 |
| 2015 | 2,323 | 0.3% | 12 of 12 |
| 2016 | 4,012 | 0.5% | 12 of 12 |
| 2017 | 4,333 | 0.6% | 12 of 12 |
| 2018 | 3,520 | 0.5% | 12 of 12 |
| 2019 | 1,958 | 0.3% | 12 of 12 |
| 2020 | 1,788 | 0.2% | 12 of 12 |
| 2021 | 5,104 | 0.7% | 12 of 12 |
| 2022 | 581 | 0.1% | 12 of 12 |
| 2023 | 0 | 0.0% | 12 of 12 |
| 2024 | 0 | 0.0% | 12 of 12 |
| 2025 | 0 | 0.0% | 12 of 12 |
| 2026 (provisional, partial year) | 0 | 0.0% | 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 CAMPDCO₂, 2025
6,928
US short tons. 2024: 6,365
SO₂, 2025
0
US short tons
NOx, 2025
1
US short tons
1 of 1 EPA units reported CO₂ in 2025 (AP-1), matched to EIA plant 6635 through the EPA–EIA crosswalk.
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 |
|---|---|---|---|
| 4 | Natural Gas Fired Combustion Turbine | 84.0 | October 2007 |
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 MPH AL Pierce, LLC 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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Questions about A L Pierce
How much power does A L Pierce produce?
A L Pierce reported 0 MWh (0 MWh) of net generation in 2025. From January to July 2026 it reported 0 MWh, which is provisional.
Where is A L Pierce?
A L Pierce is in New Haven County, Connecticut, at 41.4482, −72.8349. It is in the ISO New England Inc. balancing area (ISNE).
Who operates A L Pierce?
EIA-860M for August 2026 lists MPH AL Pierce, LLC as the operator (EIA operator ID 66605). The operator is not always the owner.
When did A L Pierce start operating?
Its first generator began operating in October 2007, according to EIA-860M.
Does InfraMap have power prices for A L Pierce?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to A L Pierce, 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page