Diamond Trail Wind Farm
Diamond Trail Wind Farm is a 253 MW wind farm in Iowa County, Iowa, operated by MidAmerican Energy Co. EIA-860M lists 1 generating unit here, inside MISO. Its unit entered service in 2020.
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
- 252.5 MW
- 250 MW net summer
- Generating units
- 1
- In service
- 2020
- EIA plant ID
- 63641
Where it is
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- County
- Iowa County, Iowa
- Coordinates
- 41.6744, -92.1642
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- MidAmerican Energy Co
- Primary energy source
- Wind
- Technologies
- Onshore Wind Turbine
- Status
- Operating
Diamond Trail Wind Farm: FAQ
- Where is Diamond Trail Wind Farm?
- In Iowa 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 Diamond Trail Wind Farm?
- 253 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Diamond Trail Wind Farm?
- EIA-860M names MidAmerican Energy 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 Diamond Trail Wind Farm LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — MidAmerican Energy 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 "Diamond Trail Wind Farm LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Diamond Trail Wind Farm still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.