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13.9 MW Natural Gas Internal Combustion Engine (2 MW) + Petroleum Liquids (12 MW) operating in Story, IA
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
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| 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
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
7 MWh
Latest Month
97 MWh
Annual Generation
0.1%
Capacity Factor
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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
Forward revenue, DSCR bands, and refinancing risk projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
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Market Position
ISO/RTO Market
MISO
LMP Node
AMIL.AMS_ASTOR
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
Curated node match
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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