Northern Iowa Windpower II

Northern Iowa Windpower II is a 80 MW wind farm in Worth County, Iowa, operated by Avangrid Power LLC. 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
80 MW
80 MW net summer
Generating units
1
In service
2008
EIA plant ID
56383

Where it is

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County
Worth County, Iowa
Coordinates
43.3608, -93.2978
Balancing authority
MISO
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Avangrid Power LLC
Primary energy source
Wind
Technologies
Onshore Wind Turbine
Status
Operating

Every plant Avangrid Power LLC reports to EIA →

Northern Iowa Windpower II: FAQ

Where is Northern Iowa Windpower II?
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 Northern Iowa Windpower II?
80 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Northern Iowa Windpower II?
EIA-860M names Avangrid Power LLC 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 Northern Iowa Windpower II LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Avangrid Power LLC 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 "Northern Iowa Windpower II LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Northern Iowa Windpower II still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.