Callaway is a 1.2 GW Nuclear asset in MISO (Midcontinent), currently Operating.
Callaway is reported in Missouri since 1984 under Union Electric Co - (MO). Available operating and financial measures include 65.6% capacity factor and 7116 GWh annual generation; $2960/kW reported CapEx.
- Location
- Callaway, Missouri
- Technology
- Nuclear
- Owner / parent
- Union Electric Co - (MO)
- Operator
- Union Electric Co - (MO)
- Grid
- MISO (Midcontinent)
- Plant ID
- 6153
What stands out
Callaway is a 1.2 GW Nuclear asset in Missouri with status Operating.
Latest annual operating measures report 65.6% capacity factor and 7116 GWh annual generation.
Available financial measures include $21.4/MWh OpEx, $2960/kW CapEx.
Latest linked story: “US Utility Suspends Plans For New Callaway Unit” (NucNet, 2026-01-29).
Market and operating context
- ISO / market
- MISO (Midcontinent)
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc..
- NERC region
- SERC
- State rank
- #1 of 1
- National rank
- #42 of 58
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.
