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13.9 MW Natural Gas Internal Combustion Engine (2 MW) + Petroleum Liquids (12 MW) operating in Story, IA — Midcontinent Independent Transmission System Operator, Inc..
13.9 MW
Nameplate Capacity
6
Generators
units
Hybrid (2)
Technology
Natural Gas Internal Combustion Engine + Petroleum Liquids
1964
Operating Since
Coordinates
42.1862, -93.6006
County
Story, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of Story City - (IA) | — | — |
| Owner(s) | City of Story City - (IA) | — | — |
| Status | Operating | — | — |
The Story City power plant, located in Story County, Iowa, has a total capacity of 13.9 MW across six generators. The plant primarily uses distillate fuel oil (DFO) but also employs natural gas internal combustion engine technology, classifying it as a hybrid facility. It began operating in 1964 and is owned and operated by the City of Story City, Iowa. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the Midwest Reliability Organization (MRO) NERC region.
In the most recent year with available data, the Story City plant generated 97 MWh, resulting in a capacity factor of 0.1%. The plant ranks 20th out of 90 power plants in Iowa and 260th out of 886 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
34.5 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
7 MWh
Latest Month
97 MWh
Annual Generation
0.1%
Capacity Factor
CO₂ Intensity
1691 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
35 lb/MWh
SO₂
3 lb/MWh
CH₄
0.069 lb/MWh
N₂O
0.014 lb/MWh
Capacity Factor
0.2%
Annual Net Gen
0 GWh
CO₂eq
1697 lb/MWh
Subregion
MRO West
2013
$765/kW
Est. Construction Cost
Total estimated cost: $10.6M
Market Position
ISO/RTO Market
MISO
LMP Node
AMIL.AMS_ASTOR
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-26
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