How big is Spirit Mound?

Spirit Mound reports 135 MW petroleum of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Spirit Mound?

Spirit Mound is a Petroleum Liquids facility in Clay County, SD, participating in the SPP market.

Where is Spirit Mound located?

Spirit Mound is in Clay County, SD, inside the SPP balancing area.

Who operates Spirit Mound?

Spirit Mound is operated by Basin Electric Power Coop according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Spirit Mound generate?

Spirit Mound reported 2.5 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Spirit Mound compare to other plants?

By capacity, Spirit Mound ranks #47 of 726 operating plants of the same technology nationally. It ranks #1 of 5 in SD.

Spirit Mound — 135 MW oil plant, Clay County, SD

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Spirit Mound — 135 MW oil plant, Clay County, SD · Ask the Grid

Generation and physical site

EIA plant 6092 · Inventory for Aug 2026.

Reported operating nameplate by technology

Petroleum: 135 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (2)

EIA generator status and nameplate capacity for Spirit Mound
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Petroleum Liquids	Operating	67.5	Unknown
2	Petroleum Liquids	Operating	67.5	Unknown

Physical map location · OpenStreetMap: 42.89687, -96.99041
Filed location · EIA: 42.89766, -96.99049

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Aug 2026
EIA retrieved: Oct 10, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Mar 1, 2025
Map prepared: Oct 10, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
1	67.5 MW 50 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Jun 1978	Operating
2	67.5 MW 45 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Jun 1978	Operating

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

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AssetOwner / operator

Parties and identifiers

OrganizationRoleBasis

Basin Electric Power CooperativeOwner / operatorOwner and operator

Reporting portfolio

EIA reporting entity

Basin Electric Power Coop

Entity 1307

Operating portfolio

16 plants

4 states

Reported capacity

6,342.6 MW

Conventional Steam Coal · Natural Gas Fired Combined Cycle · Natural Gas Fired Combustion Turbine

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Laramie River Station	1,863 MW	WY
Antelope Valley	954 MW	ND
Pioneer Generation Station	897.3 MW	ND
Leland Olds	656 MW	ND
Dry Fork Station	483.7 MW	WY
Lonesome Creek Station	363 MW	ND

Spirit Mound

Overview

Infrastructure record

Spirit Mound

Overview

Infrastructure record

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Structured profile

Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Financing