# Arbor Hill Wind Farm

MISO asset profile · https://askthegrid.com/assets/facilities/arbor-hill-wind-farm

## Current generation inventory

EIA plant 62132 · Inventory reporting month: 2026-08.

- wind: 310 MW operating nameplate
- Capacity basis: operating_generator_nameplate_mw
- Source inventory: [EIA-860M workbook (preliminary)](https://www.eia.gov/electricity/data/eia860m/xls/august_generator2026.xlsx)
- Inventory retrieved: 2026-10-10T02:12:40.665346+00:00
- Filed coordinate (longitude, latitude): -94.26136, 41.404231
- OSM extract: 2026-10-08T20:21:06Z
- OSM mapped edit: 2024-03-25 04:13:53+00:00
- Map prepared: 2026-10-10T02:28:19.335613+00:00

Battery power (MW) and stored energy (MWh) are separate measures. Shared physical-site membership does not establish electrical connectivity, settlement or a common export limit.

## Reviewed overview

Arbor Hill Wind Farm is a 310 MW onshore wind turbine plant in Adair County. Arbor Hill is a MidAmerican Energy wind farm in Adair County, Iowa, announced in 2018 as part of the utility's Wind XI program. The project uses 125 Vestas turbines on 95-meter towers, originally described as 250 MW of output, and the federal registry lists the plant at 310 MW. Mortenson was selected to build the access roads, foundations, collection system and turbine erection.

## Reviewed metrics

- **Nameplate capacity:** 310 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 62132 — plant-62132

## Facts

- **Technology:** Onshore Wind Turbine
- **Operator:** MidAmerican Energy

## Related parties

- **Construction contractor:** Mortenson — construction_contractor ([source](https://www.mortenson.com))
- **Equipment supplier:** Vestas — equipment_supplier ([source](https://www.vestas.com))

## Sources

- [mortenson.com](https://www.mortenson.com/newsroom/arbor-hill-and-ivester-wind-projects) — mortenson.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/arbor-hill-wind-farm
Website: [MidAmerican Energy](https://www.midamericanenergy.com)

Source: Ask the Grid — https://askthegrid.com/