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1648.3 MW Sub. Coal operating in Pottawattamie, IA — Midcontinent Independent Transmission System Operator, Inc..
1,648.3 MW
Nameplate Capacity
2
Generators
units
Conventional Steam Coal
Technology
1978
Operating Since
Coordinates
41.1800, -95.8408
County
Pottawattamie, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | — | — |
| Owner(s) | Atlantic Municipal Utilities, Cedar Falls Utilities, Central Iowa Power Cooperative, City of Alta - (IA), City of New Hampton - (IA), City of Spencer - (IA), City of Sumner - (IA), City of West Bend, Corn Belt Power Coop, Eldridge City Utilities, Lincoln Electric System, MidAmerican Energy Co, Municipal Energy Agency of NE, Town of Montezuma - (IN), Waverly Municipal Elec Utility | — | — |
| Status | Operating | — | — |
The Walter Scott Jr Energy Center is a 1648.3 MW coal-fired power plant located in Pottawattamie County, Iowa. It began operating in 1978 and is owned and operated by MidAmerican Energy Co. The plant utilizes conventional steam coal technology and subbituminous coal (SUB) as its primary fuel source. It consists of two generating units.
The Walter Scott Jr Energy Center operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region. In the most recent year with available data, the plant generated 5,979,018 MWh of electricity, achieving a capacity factor of 41.4%. It is the largest of 9 coal plants in Iowa, and ranks 17th out of 75 coal plants nationally.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
646.5K MWh
Latest Month
6.0M MWh
Annual Generation
41.4%
Capacity Factor
CO₂ Intensity
2137 lb/MWh
NOx
1 lb/MWh
SO₂
2 lb/MWh
CH₄
0.240 lb/MWh
N₂O
0.035 lb/MWh
Capacity Factor
39.5%
Annual Net Gen
5700 GWh
CO₂eq
2153 lb/MWh
Subregion
MRO West
No financial data available for this plant.
This is a small open-data project — if you have sources or want more coverage here, drop a note.
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.WSEC4
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-26
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