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157.6 MW Natural Gas operating in Polk, IA — Midcontinent Independent Transmission System Operator, Inc..
157.6 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1974
Operating Since
Coordinates
41.6719, -93.6760
County
Polk, IA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | MidAmerican Energy Co | MidAmerican Energy | — |
| Owner(s) | MidAmerican Energy Co | Berkshire Hathaway | — |
| Status | Operating | — | — |
The Sycamore power plant is a 157.6 MW natural gas-fired facility located in Polk County, Iowa. The plant began operating in 1974 and consists of two natural gas-fired combustion turbine generators. It is owned by Berkshire Hathaway and operated by MidAmerican Energy Co. Sycamore is located within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the MRO NERC region.
In the most recent year with available data, Sycamore generated 9,531 MWh, resulting in a capacity factor of 0.7%. The plant's installed cost was $132.95 per kW, according to FERC data. Sycamore ranks as the 9th largest power plant out of 13 in Iowa, and 813th out of 945 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
Investor-Owned Utility
Sector
Electric Utility
249 MWh
Latest Month
9.5K MWh
Annual Generation
0.7%
Capacity Factor
CO₂ Intensity
0 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
6 lb/MWh
SO₂
0.015 lb/MWh
CH₄
0.036 lb/MWh
N₂O
0.004 lb/MWh
Capacity Factor
0.8%
Annual Net Gen
11 GWh
CO₂eq
2 lb/MWh
Subregion
MRO West
Gas turbine · MidAmerican Energy Company · Data from 2015–2024
$197/kW
Installed Cost
$-1/kW
Annual CapEx
$89.4/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Market Position
ISO/RTO Market
MISO
LMP Node
MEC.SYCAMO 1
Pricing Hub
MINN.HUB
Node Source
EIA-860 direct report
Last updated 2026-03-26
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