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17.7 MW Distillate Oil operating in Winnebago, IA — Midcontinent Independent Transmission System Operator, Inc..
17.7 MW
Nameplate Capacity
4
Generators
units
Petroleum Liquids
Technology
1962
Operating Since
Coordinates
43.4172, -93.5322
County
Winnebago, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | City of Lake Mills - (IA) | — | — |
| Owner(s) | City of Lake Mills | — | — |
| Status | Operating | — | — |
The Lake Mills plant is a 17.7 MW petroleum liquid-fueled power plant located in Winnebago County, Iowa. It began operating in 1962 and is owned and operated by the City of Lake Mills. The plant consists of 4 generators utilizing petroleum liquids technology.
Lake Mills operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority. In the most recent year of data, the plant generated 38 MWh of electricity, reflecting a capacity factor of 0.0%. Lake Mills ranks 13th out of 90 power plants in Iowa and 217th 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
3 MWh
Latest Month
38 MWh
Annual Generation
0.0%
Capacity Factor
CO₂ Intensity
1378 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
26 lb/MWh
SO₂
2013
$765/kW
Est. Construction Cost
Total estimated cost: $13.5M
Market Position
ISO/RTO Market
MISO
LMP Node
—
Pricing Hub
MINN.HUB
Node Source
Shared substation inference
Last updated 2026-03-26
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ask pi about Lake MillsMidcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
12.47 kV
Regulatory Status
RE — Regulated
Entity Type
Municipal
Sector
Electric Utility
2 lb/MWh
CH₄
0.056 lb/MWh
N₂O
0.011 lb/MWh
Capacity Factor
0.0%
Annual Net Gen
0 GWh
CO₂eq
1383 lb/MWh
Subregion
MRO West