Montville Station
74 Lathrop Road, Uncasville, CT 6382Plant Summary Information
Montville Station is ranked #13 out of 52 residual fuel oil power plants nationwide in terms of total annual net electricity generation.
Montville Station is comprised of 4 generators and generated 12.7 GWh during the 3-month period between September 2025 to December 2025.
| Plant Name | Montville Station |
|---|---|
| Utility Name | Montville Power LLC |
| Location | Southeastern Connecticut Planning Region, CT |
| Initial Operation Date | January 1954 |
| Last Update | Dec 2025 |
| Annual Generation | 133.2 GWh |
| Annual Consumption | 1.9 M MMBtu |
| Ranked #3,139 out of 13,081 Power Plants Nationwide | |
| Ranked #13 out of 52 Residual Fuel Oil Power Plants Nationwide | |
| Ranked #14 out of 168 Connecticut Power Plants | |
| Ranked #1 out of 3 Connecticut Residual Fuel Oil Power Plants | |
| Fuel Types | Residual Fuel Oil : 74.2% Natural Gas : 24.9% Distillate Fuel Oil : 0.9% |
| Previous Operator |
NRG Montville Operations Inc (2013 to 2023) Montville Power LLC (2024 to 2025) |
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Monthly Net Generation for Montville Station
Monthly Plant Fuel Consumption for Montville Station
Montville Station Details
| Summary Information | |
|---|---|
| Plant Name | Montville Station (546) |
| Plant Address | 74 Lathrop Road, Uncasville, CT 6382 |
| Utility | Montville Power LLC (22380) |
| Latitude, Longitude | 41.4281, -72.1019 |
| Generation Dates on File | Jan 2001 to Dec 2025 |
| Initial Operation Date | January 1954 |
| Annual Generation | 133.2 GWh |
| Fuel Types | Residual Fuel Oil : 74.2% Natural Gas : 24.9% Distillate Fuel Oil : 0.9% |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | No |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | Yes |
| FERC Exempt Wholesale Generator Docket Number | 00-37-000 |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | NPCC |
| Balancing Authority | ISO New England Inc. (ISNE) |
| NAICS Code | Utilities (22) |
| Sector | IPP Non-CHP (2) |
| Water Source | Thames River |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Connecticut Light & Power Co (4176) CT |
| Grid Voltage | 115.00 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Local Distribution Company (LDC) | YANKEE GAS SVC CO |
| Natural Gas Storage | No |
Generator 5 Details Operating January 1954
| Technology | Natural Gas Steam Turbine |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | UN.MONTVLLE13.8MON5 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN.MONTVLLE13.8MON5 |
| Nameplate Capacity | 75 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 81 MW |
| Winter Capacity | 83 MW |
| Minimum Load | 40 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | January 1954 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Natural Gas / Residual Fuel Oil |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | Yes |
| Multifuel Details | |
| Cofire Energy Source | RFO / NG |
|---|---|
| Switch When Operating | Yes |
| Net Summer Capacity With Natural Gas | 81 MW |
| Net Winter Capacity With Natural Gas | 81 MW |
| Net Summer Capacity With Oil | 81 MW |
| Net Winter Capacity With Oil | 81 MW |
| Time To Switch From Gas To Oil | 6H |
| Time To Switch From Oil To Gas | 6H |
| Factors That Limit Switching | Yes |
| Storage Limits | Yes |
Generator 10 Details Standby January 1967
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | UN.MONTVLLE69 MO10 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN.MONTVLLE69 MO10 |
| Nameplate Capacity | 2.7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 2.7 MW |
| Winter Capacity | 2.7 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
| Status | Standby |
| Synchronized To Transmission Grid | Yes |
|---|---|
| First Operation Date | January 1967 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator 11 Details Standby January 1967
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Internal Combustion Engine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | UN.MONTVLLE69 MO10 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN.MONTVLLE69 MO10 |
| Nameplate Capacity | 2.7 MW |
| Nameplate Power Factor | 0.8 |
| Summer Capacity | 2.7 MW |
| Winter Capacity | 2.7 MW |
| Minimum Load | 1 MW |
| Uprate/Derate Completed | No |
| Status | Standby |
| Synchronized To Transmission Grid | Yes |
|---|---|
| First Operation Date | January 1967 |
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 10M |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Generator 6 Details Operating January 1971
| Technology | Petroleum Liquids |
|---|---|
| Prime Mover | Steam Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | UN.MONTVLLE22.0MON6 |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | UN.MONTVLLE22.0MON6 |
| Nameplate Capacity | 414.9 MW |
| Nameplate Power Factor | 0.9 |
| Summer Capacity | 410 MW |
| Winter Capacity | 410 MW |
| Minimum Load | 125 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | January 1971 |
|---|---|
| Combined Heat & Power | No |
| Sector Name | IPP Non-CHP (2) |
| Energy Source | Residual Fuel Oil |
| Startup Source | Distillate Fuel Oil |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | No |
| Cofire Fuels | No |
| Switch Between Oil And Natural Gas | No |
Montville Station Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
Power Plants with Similar Net Generation
Power plants with a similar annual net generation from Residual Fuel Oil.
| Rank | Plant Name | Plant Location | Annual Generation |
|---|---|---|---|
| #3 | Waiau | Pearl City, HI | 1.0 TWh |
| #4 | Northport | Northport, NY | 4.6 TWh |
| #5 | William F Wyman Hybrid | Yarmouth, ME | 338.6 GWh |
| #6 | Canal | Sandwich, MA | 546.2 GWh |
| #7 | Roseton Generating Facility | Newsburgh, NY | 795.9 GWh |
| #8 | Kahului | Kahului, HI | 152.1 GWh |
| #9 | W H Hill | Hilo, HI | 145.4 GWh |
| #10 | TalenEnergy Martins Creek | Bangor, PA | 2.8 TWh |
| #11 | Oswego Harbor Power | Oswego, NY | 130.8 GWh |
| #12 | Newington | Newington, NH | 157.4 GWh |
| #14 | New Haven Steam | New Haven, CT | 167.4 GWh |
| #15 | Port Jefferson | Port Jefferson, NY | 416.1 GWh |
| #16 | Bowline Point | West Haverstraw, NY | 1.9 TWh |
| #17 | E F Barrett | Island Park, NY | 1.1 TWh |
| #18 | Northside Generating Station | Jacksonville, FL | 3.5 TWh |
| #19 | Middletown | Middletown, CT | 33.0 GWh |
| #20 | Georgia-Pacific Cedar Springs | Cedar Springs, GA | 468.1 GWh |
| #21 | Somerset Plant | Skowhegan, ME | 567.7 GWh |
| #22 | Puna | Keaau, HI | 58.1 GWh |
| #23 | Dartmouth College Heating Plant | Hanover, NH | 10.6 GWh |
Nearby Power Plants
Below are closest 20 power plants surrounding Montville Station.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Antares-GRE 314 East Lyme LLC | East Lyme, CT | 4.2 GWh | 6.9 mi |
| Backus Microgrid Project | Norwich, CT | 843.0 MWh | 7.9 mi |
| Bridge Street 1 & 2 | Groton, CT | 452.0 MWh | 4.6 mi |
| CMEEC - Navy NE Trident | Groton, CT | 1.2 GWh | 2.5 mi |
| CMEEC - Polaris Park Solar Hybrid | Gordon, CT | 4.5 GWh | 3.5 mi |
| CMEEC - Rogers Rd Solar | Norwich, CT | 1.5 GWh | 7.7 mi |
| Conn Mun Electric Energy Coop | Norwich, CT | 1.2 GWh | 7.7 mi |
| Connecticut College | New London, CT | 10.1 GWh | 3.2 mi |
| Covanta Southeastern Connecticut Company | Preston, CT | 108.5 GWh | 3.7 mi |
| Fort Hill 1, 2, 3 & 4 | Uncasville, CT | 734.0 MWh | 3 mi |
| Foxwoods CoGen | Mashantucket, CT | 10.8 GWh | 8 mi |
| Gary Court 1 & 2 | Groton, CT | 381.0 MWh | 7.6 mi |
| Naval Sub Base New London Fuel Cell | Groton, CT | 43.6 GWh | 2.1 mi |
| Pfizer Groton Fuel Cell | Groton, CT | 30.1 GWh | 6.7 mi |
| Pfizer Groton Plant | Groton, CT | 75.4 GWh | 6.8 mi |
| Rand Whitney CHP Plant | Montville, CT | 131.8 GWh | 2.5 mi |
| Subase Microgrid Project | Groton, CT | 29.6 GWh | 2.1 mi |
| Tenth Street | Norwich, CT | 1.9 GWh | 8.1 mi |
| Water Treatment 1 & 2 | Groton, CT | 494.0 MWh | 6.4 mi |
| Yale New Haven - New London | New London, CT | 14.0 GWh | 6.3 mi |