Service Centers

The Colman headquarters serves as the main office, handling administrative functions in addition to member services. 

The Brandon and Hartford centers support high-growth suburban areas, while the Pipestone location serves members in southwest Minnesota.

For outages or emergencies, Sioux Valley Energy operates a 24/7 central dispatch system, ensuring rapid response outside business hours.

Sunrise in Brookings County by powerlines

Center Locations

Colman office for service centers page

Colman Main Office

PO Box 216
47092 SD Hwy 34
Colman, SD 57017

Voice: (800) 234-1960 or (605) 534-3535

Fax: (605) 256-1690

Office Hours: 7:30 a.m. to 4:30 p.m.

Brandon Service Center

Brandon Service Center

PO Box 857
108 N. Heritage Rd.
Brandon, SD 57005

Voice: (800) 234-1960 or (605) 582-2185

Fax: (605) 582-3165

Office Hours: 7:30 a.m. to 4:30 p.m.

pipestoneservicecenter

Pipestone Service Center

PO Box 336
1102 7th St. SE
Pipestone, MN 56164

Voice: (800) 234-1960 or (507) 825-3341

Fax: (507) 825-4835

Office Hours: 7:30 a.m. to 4:30 p.m.

hartford_exterior2

Hartford Service Center

1185 Ruud Trail
Suite #4
Hartford, SD 57033

Voice: (800) 234-1960

Office Hours: 7:30 a.m. to 4:30 p.m.