Montville Station
Oil power plant in New London County, Connecticut. 489.9 MW of nameplate capacity across 2 generators, operated by Montville Power LLC.
Also known as Montville Station Power Plant · EIA plant 546
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 489.9 MWOil 414.9 · Natural gas 75.0
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- January 1954First generator online
- Operator
- Montville Power LLCEIA operator ID 22380
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 2 ISONE nodesResource nodes with prices
- Location
- New London County, CT41.4281, −72.1019
- EIA plant ID
- 546EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Montville Station produces
Free · EIA-923Net generation, 2025
133 GWh
133,189 MWh, final
Capacity factor, 2025
3.1%
2024: 0.6%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
10.1–133.2
GWh a year. Low 2019, high 2025
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,015,393 | Not reported | 12 of 12 |
| 2001 | 637,058 | Not reported | 12 of 12 |
| 2002 | 299,813 | Not reported | 12 of 12 |
| 2003 | 249,300 | Not reported | 12 of 12 |
| 2004 | 159,434 | Not reported | 12 of 12 |
| 2005 | 551,938 | Not reported | 12 of 12 |
| 2006 | 161,752 | Not reported | 12 of 12 |
| 2007 | 91,034 | Not reported | 12 of 12 |
| 2008 | 39,270 | Not reported | 12 of 12 |
| 2009 | 33,541 | Not reported | 12 of 12 |
| 2010 | 92,304 | 2.1% | 12 of 12 |
| 2011 | 28,212 | 0.7% | 12 of 12 |
| 2012 | 30,259 | 0.7% | 12 of 12 |
| 2013 | 3,885 | 1.2% | 1 of 12 |
| 2014 | 3,809 | 1.0% | 1 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | 13,488 | 0.3% | 12 of 12 |
| 2017 | 45,307 | 1.0% | 12 of 12 |
| 2018 | 75,609 | 1.7% | 12 of 12 |
| 2019 | 10,071 | 0.2% | 12 of 12 |
| 2020 | 11,892 | Not reported | 12 of 12 |
| 2021 | 26,921 | 0.6% | 12 of 12 |
| 2022 | 97,420 | 2.2% | 12 of 12 |
| 2023 | 36,203 | 0.8% | 12 of 12 |
| 2024 | 27,761 | 0.6% | 12 of 12 |
| 2025 | 133,189 | 3.1% | 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
118,810
US short tons. 2024: 23,166
SO₂, 2025
172
US short tons
NOx, 2025
112
US short tons
CO₂ per MWh, calculated
0.89 t
About 1,784 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (5, 6), matched to EIA plant 546 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, USGSWithdrawal, 2024
2,073
million gallons
Consumption, 2024
0
million gallons
Source
Thames River
Surface, Saline. Once-through
Watershed stress
Very low/none · 0.145
USGS SUI, HUC12 Thames River-Frontal New London Harbor
6 of 24 cooling months report withdrawal. Saline, brackish or ocean intake; not tested. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 5 | Natural Gas Steam Turbine | 75.0 | January 1954 |
| 6 | Petroleum Liquids | 414.9 | January 1971 |
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 Montville Power 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.
300 analyst questions a month, plus MCP
Query Montville Station and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Montville Station
Questions about Montville Station
How much power does Montville Station produce?
Montville Station reported 133,189 MWh (133 GWh) of net generation in 2025, a 3.1% capacity factor on 489.9 MW of nameplate capacity.
Where is Montville Station?
Montville Station is in New London County, Connecticut, at 41.4281, −72.1019. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Montville Station?
EIA-860M for August 2026 lists Montville Power LLC as the operator (EIA operator ID 22380). The operator is not always the owner.
When did Montville Station start operating?
Its first generator began operating in January 1954, according to EIA-860M.
Does InfraMap have power prices for Montville Station?
Yes. InfraMap has ISONE day-ahead and real-time prices at 2 price nodes linked to Montville Station, 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
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page