Otter Tail Power

Organization

1,584 catalogued assets · 18 states

Total assets

1,584

Otter Tail Power is an organization in the GridCensus infrastructure catalog, owning or operating 1,584 catalogued assets across 18 states. An organization’s existing footprint — its power assets, fiber, land, and facilities — is a strong signal of where it can expand and which markets it already controls. Every asset below links to its full profile.

278

Candidate Sites Owned

1,303

Transmission Lines

Brownfields

Footprint

Alabama ArizonaBCCalifornia Connecticut Florida Iowa Idaho Illinois Indiana Louisiana Maryland Minnesota North Dakota South Dakota Utah Virginia Washington

Candidate Sites Owned (278)

Site	Location	DC Readiness	Candidate MW
ROSEAU COUNTY	Roseau County, MN	74.8/100	1,000 MW
BROOKINGS COUNTY	Lincoln County, MN	74.1/100	600 MW
AUDOBON 230KV	Becker County, MN	73.9/100	300 MW
LYON COUNTY	Lyon County, MN	73.7/100	600 MW
UNKNOWN131144	Big Stone County, MN	72.1/100	300 MW
Greenfield (BROOKINGS COUNTY - LYON COUNTY)	Lincoln County, MN	70.8/100	600 MW
UNKNOWN160904	Traverse County, MN	70.8/100	100 MW
UNKNOWN130153	Pennington County, MN	70.6/100	100 MW
Greenfield (BROOKINGS COUNTY - LYON COUNTY)	Lincoln County, MN	70.4/100	600 MW
UNKNOWN131969	Lac qui Parle County, MN	70.4/100	100 MW
UNKNOWN130322	Pennington County, MN	70.1/100	100 MW
TAP138633	Brookings County, SD	69.8/100	100 MW
UNKNOWN131445	Traverse County, MN	69.8/100	100 MW
UNKNOWN131515	Lac qui Parle County, MN	69.5/100	100 MW
Greenfield (BROOKINGS COUNTY - LYON COUNTY)	Lincoln County, MN	69.3/100	600 MW
TAP135630	Becker County, MN	69.2/100	100 MW
BENSON CITY OF	Swift County, MN	69.1/100	100 MW
Greenfield (ROSEAU COUNTY - FORBES)	Lake of the Woods County, MN	69.1/100	1,000 MW
Greenfield (BROOKINGS COUNTY - LYON COUNTY)	Lincoln County, MN	69.0/100	600 MW
TAP133993	Red Lake County, MN	68.9/100	100 MW
Greenfield (ROSEAU COUNTY - None)	Roseau County, MN	68.8/100	1,000 MW
TAP138634	Brookings County, SD	68.7/100	100 MW
UNKNOWN131214	Brookings County, SD	68.7/100	100 MW
UNKNOWN131221	Brookings County, SD	68.6/100	100 MW
UNKNOWN130136	Marshall County, MN	68.5/100	100 MW
UNKNOWN130171	Stevens County, MN	68.1/100	100 MW
WILTON	Clearwater County, MN	68.0/100	300 MW
UNKNOWN129790	Swift County, MN	67.8/100	100 MW
Greenfield (ROSEAU COUNTY - None)	Roseau County, MN	67.7/100	1,000 MW
Greenfield (SPLIT ROCK - WHITE)	Brookings County, SD	67.6/100	600 MW
TAP134740	Clearwater County, MN	67.5/100	100 MW
UNKNOWN130165	Becker County, MN	67.5/100	100 MW
LAKEHEAD PIPELINE	Clearwater County, MN	67.4/100	100 MW
UNKNOWN129778	Swift County, MN	67.4/100	100 MW
UNKNOWN132582	Lyon County, MN	67.4/100	100 MW
TAP134741	Clearwater County, MN	67.3/100	100 MW
TAP135631	Becker County, MN	67.2/100	100 MW
TAP134744	Clearwater County, MN	67.2/100	100 MW
Greenfield (BROOKINGS COUNTY - UNKNOWN1758)	Lincoln County, MN	67.1/100	600 MW
UNKNOWN129825	Clearwater County, MN	67.0/100	100 MW
UNKNOWN132552	Lyon County, MN	66.9/100	100 MW
TAP138565	Big Stone County, MN	66.9/100	100 MW
Greenfield (ROSEAU COUNTY - None)	Roseau County, MN	66.9/100	1,000 MW
Greenfield (ROSEAU COUNTY - None)	Roseau County, MN	66.8/100	1,000 MW
UNKNOWN131211	Brookings County, SD	66.8/100	100 MW
TAP138569	Deuel County, SD	66.8/100	100 MW
Greenfield (LYON COUNTY - MINN VALLEY)	Yellow Medicine County, MN	66.7/100	600 MW
UNKNOWN129817	Roseau County, MN	66.7/100	300 MW
Greenfield (BROOKINGS COUNTY - LYON COUNTY)	Lyon County, MN	66.6/100	600 MW
TAP171146	Otter Tail County, MN	66.6/100	100 MW

Showing 50 of 278 candidate sites where this organization is the catalogued parcel owner.

Transmission Lines (1,303)

Line	State	Voltage	Length
Line #111278	Minnesota	500 kV	109.7 mi
Line #178143	South Dakota	345 kV	24.7 mi
Line #139778	South Dakota	345 kV	0.0 mi
Line #180293	Minnesota	345 kV	9.9 mi
Line #130576	Arizona	345 kV	21.7 mi
Line #126297	North Dakota	345 kV	55.9 mi
Line #179164	Minnesota	345 kV	30.5 mi
Line #178144	South Dakota	345 kV	16.4 mi
Line #180189	Minnesota	345 kV	5.0 mi
Line #159139	Minnesota	345 kV	49.5 mi
Line #124536	South Dakota	345 kV	44.5 mi
Line #123126	North Dakota	345 kV	12.2 mi
Line #178133	South Dakota	345 kV	30.4 mi
Line #141754	South Dakota	345 kV	0.5 mi
Line #100577	South Dakota	345 kV	0.5 mi
Line #135778	South Dakota	345 kV	0.7 mi
Line #178141	South Dakota	345 kV	31.0 mi
Line #159140	Minnesota	345 kV	49.5 mi
Line #179568	South Dakota	345 kV	19.1 mi
Line #180417	Minnesota	345 kV	24.6 mi
Line #117955	North Dakota	230 kV	0.3 mi
Line #112420	North Dakota	230 kV	43.4 mi
Line #121441	North Dakota	230 kV	50.7 mi
Line #110280	North Dakota	230 kV	48.6 mi
Line #109372	Minnesota	230 kV	6.7 mi
Line #111362	North Dakota	230 kV	12.1 mi
Line #129517	North Dakota	230 kV	6.6 mi
Line #134750	North Dakota	230 kV	61.6 mi
Line #113019	South Dakota	230 kV	33.5 mi
Line #114783	North Dakota	230 kV	4.2 mi
Line #122828	North Dakota	230 kV	0.1 mi
Line #102040	Washington	230 kV	28.4 mi
Line #108143	North Dakota	230 kV	18.1 mi
Line #112107	Minnesota	230 kV	0.0 mi
Line #122394	North Dakota	230 kV	11.1 mi
Line #166878	Iowa	230 kV	2.3 mi
Line #164954	North Dakota	230 kV	0.1 mi
Line #175398	North Dakota	230 kV	21.1 mi
Line #158484	North Dakota	230 kV	4.3 mi
Line #130660	North Dakota	230 kV	0.2 mi

Browse the full transmission-line map →

Brownfields (3)

Site	Location	Former use	Legacy MW
Hoot Lake	Fergus Falls, MN	coal	137 MW
Lake Preston	Lake Preston, SD	oil	24 MW
Fergus Control Ctr	Fergus Falls, MN	oil	2 MW

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Dataset updated June 2026. Screening estimates derived from public data sources.

Organization records are derived from public infrastructure datasets (EIA, HIFLD, FCC, PNNL, county parcels, PeeringDB) and may be incomplete or lag operational changes. Owner/operator names are normalized for grouping; counts and capacities are catalogued estimates. Confirm ownership and availability directly with the organization.

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