# Tatanka Wind Power LLC

MISO asset profile · https://askthegrid.com/assets/facilities/tatanka-wind-power-llc

## Current generation inventory

EIA plant 56669 · Inventory reporting month: 2026-08.

- wind: 180 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: 2026-10-10T22:49:53.020309+00:00
- Filed coordinate (longitude, latitude): -98.94633, 45.959325
- OSM extract: 2026-10-09T20:21:04Z
- OSM mapped edit: 2023-03-03 21:12:27+00:00
- Map prepared: 2026-10-10T23:05:26.550396+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

Tatanka Wind Power LLC is a 180 MW onshore wind turbine plant in Dickey County. Tatanka is a 180 MW wind farm in Dickey and McIntosh counties, North Dakota, extending into McPherson County, South Dakota. Owned by Acciona through Acciona Wind Energy USA, it began commercial operations in July 2008 with 120 Acciona 1.5 MW turbines, 61 of them in North Dakota. A project substation and 13 miles of 230 kV line connect to the Montana-Dakota Utilities system under a 2005 MISO interconnection agreement. Tatanka sells as a merchant generator in MISO.

## Reviewed metrics

- **Nameplate capacity:** 180 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 56669 — plant-56669

## Facts

- **Technology:** Onshore Wind Turbine
- **Operator:** Acciona Wind Energy USA LLC
- **Operating status:** Operating

## Related parties

- **Owner / operator / parent company:** Acciona Wind Energy USA LLC — owner ([source](https://www.acciona.us))
- **Transmission owner / interconnecting utility:** Montana-Dakota Utilities Company — interconnecting_utility ([source](https://www.montana-dakota.com))
- **Market participant / balancing authority:** Midwest Independent System Operator — balancing_authority ([source](https://www.misoenergy.org))

## Sources

- [ge.com](https://www.ge.com/news/press-releases/ge-unit-partners-leading-wind-farm-developer-381-million-project) — ge.com · public_source — Source retained for exact-record publication review.
- [psc.nd.gov](https://www.psc.nd.gov/webdocs/case/24-0228/001-010.pdf) — psc.nd.gov · authoritative — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/tatanka-wind-power-llc
Website: [Acciona Wind Energy USA LLC](https://www.acciona.us)

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