Skip to content

Checked

Cos Cob

115 MW petroleum power plant · Western Connecticut Planning Region, Connecticut

Operating capacity
115 MW
5 generators
Main fuel
Petroleum
First unit online
1969
Generation, 2023
1,298 MWh

Plant details

EIA plant ID
542
Operator
Connecticut Jet Power LLC
Sector
IPP Non-CHP
County
Western Connecticut Planning Region
Balancing authority
ISNE
Location
41.0289, -73.5989

Operating generators

Nameplate capacity and the month each began operating

Swipe the table sideways to see more columns.

GeneratorFuelCapacityOnlineStatus
UN10Petroleum LiquidsPetroleum25.0 MWSep 1969Operating
UN11Petroleum LiquidsPetroleum25.0 MWSep 1969Operating
UN12Petroleum LiquidsPetroleum25.0 MWOct 1969Operating
UN13Petroleum LiquidsPetroleum20.0 MWJun 2008Operating
un14Petroleum LiquidsPetroleum20.0 MWJun 2008Operating

Generation and emissions, 2023

EPA eGRID annual data

Net generation
1,298 MWh
Capacity factor
0.1%
CO2 emissions
None reported

Nearby power plants

Within 25 miles

Swipe the table sideways to see more columns.

PlantFuelCapacityDistance
Waterside Power, LLCPetroleum69.6 MW2.3 mi
Stamford HealthPetroleum10.4 MW3.1 mi
Stamford Health Tully Health CenterPetroleum1.5 MW4.2 mi
White Plains Hospital Medical CenterPetroleum5.7 MW8.1 mi
The Source at White Plains (UBS)Solar1.0 MW8.4 mi
White Plains RFP Shapham PlaceBattery storage6.2 MW8.4 mi
White Plains_RFP-Gedney Way LandfillSolar3.3 MW8.4 mi
Mt Pleasant Community CenterBattery storage1.2 MW10 mi

Frequently asked questions

How much power can Cos Cob produce?
Cos Cob has 115 MW of operating nameplate capacity across 5 generators as of August 2026.
Who operates Cos Cob?
EIA lists Connecticut Jet Power LLC as the operator of Cos Cob.
How much electricity did Cos Cob generate?
Cos Cob reported 1,298 MWh of net generation in 2023, according to EPA eGRID.

Source: U.S. Energy Information Administration, Form EIA-860M (August 2026); U.S. EPA eGRID2023 · Data for August 2026