Top of Iowa Windfarm III
Top of Iowa Windfarm III is a 30 MW wind farm in Worth County, Iowa, operated by Madison Gas & Electric Co. EIA-860M lists 1 generating unit here, inside MISO. Its unit entered service in 2008.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 29.7 MW
- 29.7 MW net summer
- Generating units
- 1
- In service
- 2008
- EIA plant ID
- 56386
Where it is
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- County
- Worth County, Iowa
- Coordinates
- 43.3597, -93.3208
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Madison Gas & Electric Co
- Primary energy source
- Wind
- Technologies
- Onshore Wind Turbine
- Status
- Operating
Top of Iowa Windfarm III: FAQ
- Where is Top of Iowa Windfarm III?
- In Worth County, Iowa (IA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Top of Iowa Windfarm III?
- 30 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Top of Iowa Windfarm III?
- EIA-860M names Madison Gas & Electric Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Top of Iowa Windfarm III LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Madison Gas & Electric Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Top of Iowa Windfarm III LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Top of Iowa Windfarm III still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.