MWPowerPlantFacts
PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/2107
EIA plant 2107

West Alton · St Charles · MO

Sioux

Operated by Union Electric Co - (MO)

Annual generation3,337,571 MWhSum of represented EIA-923 rows
Fuel codesSUBCodes retained from EIA records
Grid contextMidcontinent Independent Transmission System Operator, Inc..Balancing authority or NERC region

Published location

Where is Sioux?

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

38.915479, -90.290247

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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
1367,175 MWh
287,689 MWh
378,777 MWh
4218,063 MWh
5289,999 MWh
6447,279 MWh
7468,037 MWh
8369,306 MWh
9162,186 MWh
10131,728 MWh
11250,718 MWh
12466,614 MWh

Operating generators

IDTechnologyFuelMWStatus
1Conventional Steam CoalSUB549.7OP
2Conventional Steam CoalSUB549.7OP

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Identity, technology and limitations
EIA plant ID
2107
Sector
Electric Utility
Water source
Mississippi River
Data edition
2024-final