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19 MW Natural Gas Internal Combustion Engine (9 MW) + Onshore Wind Turbine (2 MW) + Petroleum Liquids (7 MW) + Solar Photovoltaic (1 MW) standby in Mitchell, IA — Midcontinent Independent Transmission System Operator, Inc..
19 MW
Nameplate Capacity
6
Generators
units
Hybrid (4)
Technology
Natural Gas Internal Combustion Engine + Onshore Wind Turbine + Petroleum Liquids + Solar Photovoltaic
1963
Operating Since
Coordinates
43.2797, -92.8106
County
Mitchell, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of Osage - (IA) | Greenbacker Renewable Energy | — |
| Owner(s) | City of Osage - (IA) | — | — |
| Status | Standby | operating | — |
Located in Mitchell County, Iowa, the Osage plant (EIA plant code 1172) is a hybrid power plant owned and operated by the City of Osage. The plant has a total capacity of 19 MW consisting of natural gas internal combustion engines, onshore wind turbines, petroleum liquids, and solar photovoltaic technologies. The plant began operating in 1963 and is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority within the MRO NERC region.
The Osage plant's latest annual generation was 5,585 MWh, resulting in a capacity factor of 3.4%. The wind component utilizes a GE Wind GE1.5-77 turbine model, with a rotor diameter of 77 meters and a hub height of 80 meters. The solar component uses fixed-tilt tracking. The plant ranks 11th out of 90 power plants in Iowa and 204th 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
69.0 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
397 MWh
Latest Month
5.6K MWh
Annual Generation
3.4%
Capacity Factor
CO₂ Intensity
155 lb/MWh
NOx
3 lb/MWh
SO₂
0.145 lb/MWh
CH₄
0.003 lb/MWh
N₂O
0.000 lb/MWh
Capacity Factor
2.3%
Annual Net Gen
4 GWh
CO₂eq
155 lb/MWh
Subregion
MRO West
2013
$965/kW
Est. Construction Cost
Total estimated cost: $18.3M
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MINN.HUB
Node Source
OSM spatial match
Last updated 2026-03-26
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