Top of Iowa Windfarm III — Plant Summary
- EIA Plant ID
- 56386
- Capacity
- 29.7 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Worth, IA
- Operating Since
- 2008
- Generators
- 1
- Operator
- Madison Gas & Electric Co
- Parent Company
- Entergy
- Annual Generation
- 43,805 MWh
- Capacity Factor
- 16.8%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- MRO
Top of Iowa Windfarm III
OperatingWind
Ranked #78 of 122 Wind plants in IA#1034 of 1442 nationally
29.7 MW Wind operating in Worth, IA — Midcontinent Independent Transmission System Operator, Inc..
EIAGEMWD
29.7 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2008
Operating Since
Location
Coordinates
43.3662, -93.3219
County
Worth, IA
Nearby Plants
- Northern Iowa Windpower IIWind80 MW · 2.0 km
- Old Gold Energy Center, LLCWind80 MW · 7.9 km
- Roeder Family Wind Farm LLCWind1.6 MW · 8.3 km
Ownership & Operator
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Madison Gas & Electric Co | EDPR Renewable Energy Sources of Greece 1 Sole Proprietorship | — |
| Owner(s) | Madison Gas & Electric Co | Entergy | — |
| Status | Operating | operating | — |
Ownership Chain
About
Top of Iowa Windfarm III is a 29.7 MW wind power plant located in Worth County, Iowa. The plant began operating in 2008 and is owned by Entergy, with Madison Gas & Electric Co. listed as the EIA operator. It consists of a single generator utilizing onshore wind turbine technology. The facility is connected to the Midcontinent Independent Transmission System Operator, Inc. (MISO) balancing authority and resides within the MRO NERC region.
The wind farm's turbines have a hub height of 78 meters and a rotor diameter of 87 meters. The turbines were manufactured by Gamesa, model G87-2.0. In its latest year of reported generation, the plant produced 43,805 MWh, achieving a capacity factor of 16.8%. Financial data indicates an installed cost of $2055.57 per kW, based on FERC filings. Top of Iowa Windfarm III is ranked 78th out of 122 wind plants in Iowa and 1022nd out of 1424 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
MRO
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
161 kV
Regulatory Status
RE
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Generation
5.2K MWh
Latest Month
43.8K MWh
Annual Generation
16.8%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Form 1HIGH
$2,037/kW
Installed Cost
$15.7/MWh
Operating Cost
Madison Gas and Electric Company
Reporting Utility
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
Pricing & Market Data
HIGH confidencePoint of Interconnection
Nearest Substation
Worth County Substation · 161 kV
Substation Distance
< 10 km
Operator
ITC
Coord Source
OSM spatial
Market Position
ISO/RTO Market
MISO
LMP Node
ALTW.TOI_MGEO
Pricing Hub
MINN.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
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