MWPowerPlantFacts

Data last collected:

EIA plant 562

Middletown · Middlesex · CT

Middletown

Operated by Middletown Power LLC

Annual generation32,953 MWhSum of represented EIA-923 rows
Fuel codesDFO, NG, RFOCodes retained from EIA records
Grid contextISO New England Inc.Balancing authority or NERC region

Published location

Where is Middletown?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

41.554944, -72.579075

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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.

Equipment mix

Operating capacity by technology

TechnologyPetroleum Liquids433.4 MW represented
TechnologyNatural Gas Steam Turbine353 MW represented

Grouped from this plant’s represented generator records. Use the CT plant index for regional peers.

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Electricity output across the year

Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.

1-1,334.21
2-1,289.68
3-1,144.49
4-954.55
5-900.96
66,689.44
713,888.73
83,315.5
9-930.96
10-962.87
11-910.22
1217,487.28

MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.

Read the chart as a table
Electricity output across the year — MWh net generation
RecordMWh net generation
1-1,334.21
2-1,289.68
3-1,144.49
4-954.55
5-900.96
66,689.44
713,888.73
83,315.5
9-930.96
10-962.87
11-910.22
1217,487.28

2024 monthly net generation

MonthNet generation
1-1,334 MWh
2-1,290 MWh
3-1,144 MWh
4-955 MWh
5-901 MWh
66,689 MWh
713,889 MWh
83,315 MWh
9-931 MWh
10-963 MWh
11-910 MWh
1217,487 MWh

Operating generators

IDTechnologyFuelMWStatus
4Petroleum LiquidsRFO414.9OP
3Natural Gas Steam TurbineNG239.4OP
2Natural Gas Steam TurbineNG113.6OP
10Petroleum LiquidsDFO18.5OP

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Similar-capacity plants in the same state

Identity, technology and limitations
EIA plant ID
562
Sector
IPP Non-CHP
Water source
Connecticut River
Data edition
2024-final

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Questions this evidence can answer

01What exactly is this record?

Use the name, place, date and identifiers above to confirm that you have the right Middletown power plant: capacity and generation | PowerPlantFacts record.

02What does the evidence establish?

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03What should I verify next?

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A closer look at Middletown

Variation in the published months

Across 4 numeric monthly generation entries, 12 has the highest recorded value (17,487 MWh) and 8 the lowest (3,315 MWh). Their difference is 14,172 MWh. Missing months have not been treated as zero.

Reading the MW column

In the 4 numeric rows displayed in this table, MW ranges from 18.5 (10) to 414.9 (4). The difference is 396.4 in the column's stated units. This summary covers the displayed rows and retains the table's period and scope.

Generator capacity in different operating conditions

Generator IDTechnologyNameplate MWSummer MWWinter MWMinimum load MW
10Petroleum Liquids18.517.222.15.0
2Natural Gas Steam Turbine113.6117.0120.045.0
3Natural Gas Steam Turbine239.4236.0245.0100.0
4Petroleum Liquids414.9400.0402.0125.0

EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.

Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.

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