Power plant · South Dakota, United States

Huron Power Plant

Huron Power Plant is a closed gas power plant in South Dakota, United States, with 57.9 MW of capacity, operated by NorthWestern Energy - (SD).

Grid connection

It closed in 2022, which freed up a 58 MW grid connection at 69 kV to the grid of NorthWestern Energy - (SD), unless it has been reassigned since.

Retiring power plants in the United States

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

Fact	Value	Source
Location	South Dakota	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Status	Closed	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Start year	1961	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
End year	2022	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Operator	NorthWestern Energy - (SD)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Capacity	57.9 MW (nameplate of its retired generators)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Technology	Natural Gas Fired Combustion Turbine	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Grid operator	NorthWestern Energy - (SD)	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Voltage	69 kV	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026
Coordinates	44.3695, -98.1722	EIA-860 / 860M / 923 · Public domain · checked 24 Oct 2026

Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.

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How it compares

Huron is the 6th-largest of 6 power plants in South Dakota and the 996th-largest of 1,009 in the United States by capacity; its 57.9 MW is <0.1% of the 917,512 MW we hold for the United States. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.

Within	Rank	Total	Share
South Dakota	6th of 6	2,349 MW	2.5%
United States	996th of 1,009	917,512 MW	<0.1%
All power plants in our data	3,372nd of 15,799	1,918,113 MW	<0.1%

Timeline

Dated facts about this power plant from its sources, oldest first.

1961Started operating
2022Retired

Operator, grid operator and place

Other power plants in South Dakota

Oahe786 MW
Big Bend Dam538 MW
Big Stone451 MW
Angus Anson406 MW
Ben French110 MW
Toronto Power Plant145 MW · planned

All 7 power plants in South Dakota, United States

Data on this page

Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
Wikidata. Wikidata, CC0 1.0.