Sioux is a 1.1 GW Conventional Steam Coal asset in MISO (Midcontinent), currently Operating.
Sioux is reported in Missouri since 1967 under Union Electric Co - (MO). Available operating and financial measures include 41.6% capacity factor and 3986 GWh annual generation; $1456/kW reported CapEx.
- Location
- St Charles, Missouri
- Technology
- Conventional Steam Coal
- Owner / parent
- Union Electric Co - (MO)
- Operator
- Union Electric Co - (MO)
- Grid
- MISO (Midcontinent)
- Plant ID
- 2107
What stands out
Sioux is a 1.1 GW Conventional Steam Coal asset in Missouri with status Operating.
Latest annual operating measures report 41.6% capacity factor and 3986 GWh annual generation.
Available financial measures include $37.7/MWh OpEx, $1456/kW CapEx.
Latest linked story: “Trump exempts nearly 70 coal plants from Biden-era rule; local energy centers impacted” (Spectrum News, 2025-04-16).
Market and operating context
- ISO / market
- MISO (Midcontinent)
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- SERC
- State rank
- #5 of 8
- National rank
- #40 of 100
Why it matters
For this asset in MISO (Midcontinent), operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.
