Leland Olds

Leland Olds — 656 MW coal plant, Mercer County, ND · Ask the Grid

Generation and physical site

EIA plant 2817 · Inventory for Aug 2026.

Reported operating nameplate by technology

Coal: 656 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 Leland Olds
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Conventional Steam Coal	Operating	216	Unknown
2	Conventional Steam Coal	Operating	440	Unknown

Physical map location · OpenStreetMap: 47.27892, -101.31477
Filed location · EIA: 47.28077, -101.32120

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: Nov 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	216 MW 220 MW summer	Conventional Steam Coal Lignite · ST	Jan 1966	Operating
2	440 MW 440 MW summer	Conventional Steam Coal Lignite · ST	Dec 1975	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

Drag organizations to explore the network. Select a node to pin its details and available page link.

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 OldsCurrent	656 MW	ND
Dry Fork Station	483.7 MW	WY
Lonesome Creek Station	363 MW	ND

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Jan 1966
Jan 1966
Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.
1974
1974
First Precipitator Commissioned on Unit 1basinelectr...
First precipitator on a lignite-fired boiler was commissioned on Leland Olds Unit 1.
Dec 1975
Dec 1975
Generator enters operationEIA-860
EIA-860 lists generator 2 with this operating date.
View 1 more milestoneHide 1 milestone
1. Jun 2008
  Jun 2008
  General Contractor Selected for Scrubber Projectindustriali...
  Alberici Constructors Incorporated selected as general contractor for $200 million wet scrubber retrofit project at Leland Olds Station.
2012
2012
Unit 2 Scrubber Commissionedpuc.sd.gov
Unit 2 wet limestone scrubber commissioned to control SO2 emissions per EPA Regional Haze Rule BART requirements.
2013
2013
Unit 1 Scrubber Commissionedpuc.sd.gov
Unit 1 wet limestone scrubber commissioned to control SO2 emissions per EPA Regional Haze Rule BART requirements.
Apr 2017
Apr 2017
SNCR Technology Installed and Operationalpuc.sd.gov
Selective Non-Catalytic Reduction (SNCR) technology placed into service on both units for NOx emission control. BART compliance requirements were effective April 2017.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

Basin Electric Power Cooperative2025 Annual Reportauthoritative

Common questions about Leland Olds

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Leland Olds?

Leland Olds reports 656 MW coal of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Leland Olds?

Leland Olds is a Conventional Steam Coal facility in Mercer County, ND, participating in the SPP market.

Where is Leland Olds located?

Leland Olds is in Mercer County, ND, inside the SPP balancing area.

Who operates Leland Olds?

Leland Olds 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 Leland Olds generate?

Leland Olds reported 3,390.4 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Leland Olds compare to other plants?

By capacity, Leland Olds ranks #103 of 205 operating plants of the same technology nationally. It ranks #4 of 7 in ND.

Overview

Infrastructure record

Leland Olds

Overview

Infrastructure record

Explore related directories

Structured profile

Generation and physical site

Reported operating nameplate by technology

Related assets

Antelope Valley

North Omaha

John W Turk Jr Power Plant

Dry Fork Station

John Twitty Energy Center

Flint Creek