Callaway

OperatingNuclear

Ranked #1 of 1 Nuclear plants in MO#41 of 57 nationally

1235.8 MW Nuclear operating in Callaway, MO — Midcontinent Independent Transmission System Operator, Inc..

EIAGEMWD

1,235.8 MW

Nameplate Capacity

Generators

unit

Nuclear

Technology

1984

Operating Since

Location

Coordinates

38.7589, -91.7788

County

Callaway, MO

Nearby Plants

Fulton (MO)
Distillate Oil33.2 MW · 19.0 km
Show Me State Solar
Solar250 MW · 26.5 km

Ownership & Operator

Owner data does not fully agree across sources.

EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.

Field	EIA	GEM	Wikidata
Operator	Union Electric Co - (MO)	Ameren UE; Union Electric	Ameren Missouri
Owner(s)	Union Electric Co - (MO)	Ameren UE; Union Electric Co [100%]	—
Status	Operating	operating	—

Ownership Chain

GEM identifies the owner as Ameren UE; Union Electric Co [100%]

This entity is not yet in the GEM ownership database — chain unavailable.

About

The Callaway Plant is a nuclear power plant located in Callaway County, Missouri. The plant is Missouri's only nuclear power plant and is close to Fulton, Missouri. The 2,767 acres (1,120 ha) site began operations on December 19, 1984. It generates electricity from one 1,190-megawatt Westinghouse four-loop pressurized water reactor and a General Electric turbine-generator. The Ameren Corporation owns and operates the plant through its subsidiary Ameren Missouri. It is one of several Westinghouse reactors designs called the "Standard Nuclear Unit Power Plant System," or SNUPPS.

Read more on Wikipedia

Callaway is a 1,235.8 MW nuclear power plant located in Callaway County, Missouri. The plant, which began operating in 1984, is owned and operated by Union Electric Co. The facility consists of a single nuclear generator. Callaway is the largest nuclear power plant in Missouri, and ranks 39th out of 55 nuclear plants nationally.

The plant's latest annual generation was 7,116,161 MWh, resulting in a capacity factor of 65.6%. Callaway operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region. Financial data indicates an installed cost of $2,541.08 per kW, based on FERC data.

Generated from EIA, GEM, and public data sources