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72 MW Natural Gas operating in Johnson, IA
72 MW
Nameplate Capacity
4
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1970
Operating Since
Coordinates
41.6719, -91.5639
County
Johnson, IA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | — | — |
Coralville GT is a 72 MW natural gas-fired power plant located in Johnson County, Iowa. The plant began operating in 1970 and consists of four natural gas-fired combustion turbine generators. It is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. The plant is interconnected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) and resides within the Midwest Reliability Organization (MRO) NERC region.
In its latest year of reported generation, Coralville GT produced 800 MWh of electricity, representing a capacity factor of 0.1%. The plant ranks 15th out of 37 power plants in Iowa and 1020th out of 1963 plants nationally. Financial data reported to FERC indicates an installed cost of $236.62 per kW.
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
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
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.
65 MWh
Latest Month
800 MWh
Annual Generation
0.1%
Capacity Factor
Forward-looking generation outlook with probabilistic ranges across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
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CO₂ Intensity
3077 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
8 lb/MWh
SO₂
0.084 lb/MWh
CH₄
0.058 lb/MWh
N₂O
0.006 lb/MWh
Capacity Factor
0.2%
Annual Net Gen
1 GWh
CO₂eq
3080 lb/MWh
Subregion
MRO West
Gas turbine · MidAmerican Energy Company · Data from 2015–2024
$365/kW
Installed Cost
$43/kW
Annual CapEx
$365.9/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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
MEC.CORALV1
Pricing Hub
MINN.HUB
Alt. Hub / Zone
ILLINOIS.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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.
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