MWPowerPlantFacts
PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/1574
EIA plant 1574

Darlington · Harford · MD

Conowingo

Operated by Constellation Power, Inc

Annual generation1,831,180 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextPJM Interconnection, LLCBalancing authority or NERC region

Published location

Where is Conowingo?

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

39.657200, -76.175200

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Map data © OpenStreetMap contributors

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

2024 monthly net generation

MonthNet generation
1283,844 MWh
2196,317 MWh
3294,193 MWh
4286,741 MWh
5190,498 MWh
676,746 MWh
755,486 MWh
8152,414 MWh
949,580 MWh
1041,118 MWh
1137,569 MWh
12166,674 MWh

Operating generators

IDTechnologyFuelMWStatus
10Conventional HydroelectricWAT55.6OP
11Conventional HydroelectricWAT55.6OP
8Conventional HydroelectricWAT55.6OP
9Conventional HydroelectricWAT55.6OP
3Conventional HydroelectricWAT48OP
7Conventional HydroelectricWAT48OP
4Conventional HydroelectricWAT47.7OP
6Conventional HydroelectricWAT47.7OP
1Conventional HydroelectricWAT45OP
2Conventional HydroelectricWAT36OP
5Conventional HydroelectricWAT36OP

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Identity, technology and limitations
EIA plant ID
1574
Sector
IPP Non-CHP
Water source
Susquehanna River
Data edition
2024-final