Audrain Generating Station

Power plant · Gas, combustion turbine

Key facts

Power plant · Gas, combustion turbine Operating

Net generation MWh by year, 2002 to 2025

Fuel burned MMBtu by year, 2002 to 2025

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Technology: Gas, combustion turbine source: “Natural Gas Fired Combustion Turbine”
Age: 25 years since 2001
Unused energy: 6,731 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
Heat rate: 12,218 Btu/kWh 2025

All 8 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory

Attributes
Attribute	Value
Gem	Parents Name Union Electric Co Share pct 100 Gem entity id E100000004265 Unit ids G100000403666, G100000403667, G100000403668, G100000403669, G100000403670, G100000403671, G100000403672, G100000403673 Location id L100000402335 Eia plant ids 55234
Grid	Nerc region SERC Report year 2025 Grid voltage kv 345 Transmission owner Union Electric Co - (MO) Balancing authority code MISO Balancing authority name Midcontinent Independent Transmission System Operator, Inc..
EPA greenhouse gas reporting (GHGRP)	Subparts reported D NAICS code 221112 Subpart PP (CO2 supply) No Subpart RR (geologic sequestration) No Subpart UU (CO2 injection) No Reporting year 2023 GHGRP facility ID 1001379
Fuel burned (MMBtu), 2025	4,920,977
Capacity factor, 2025	0.057
Heat rate (Btu/kWh), 2025	12,218
Net generation (MWh), 2025	402,766
Balancing authority code	MISO

2 companies

Companies with an ownership or operating interest in this asset.
Company	Role	Share	As of	Source
Union Electric Co - (MO)	Operator			EIA-860M
AMEREN CORP	Owner	100.0%	Dec 31, 2023	EPA GHGRP

5 sources

Sources

EIA-860MOpen license · retrieved Nov 4, 2026
GEMOpen license, with credit · retrieved Oct 26, 2026Global Integrated Power Tracker, Global Energy Monitor, September 2026 release (https://globalenergymonitor.org/projects/global-integrated-power-tracker), CC BY 4.0. Modified by Inframation: TransitionZero-sourced rows removed; statuses and technologies mapped to Inframation's vocabulary; figures aggregated. Copyright © Global Energy Monitor. Global Integrated Power Tracker, September 2026 release. Distributed under a Creative Commons Attribution 4.0 International License.
EIAOpen license · retrieved Nov 1, 2026Source: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
EIA-860M Preliminary Monthly Electric Generator Inventory
EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)

Projects within 25 km, nearest first.
Project	Kind	Away	MW
Blue Jay Road Solar, LLC Under construction	Solar	8.0 km	66

Sources