Utility Regulatory Commission

South Dakota Public Utilities Commission
Capital Building, 1st Floor
500 E. Capitol Avenue
Pierre, SD 57501-5070
Phone: 605.773.3201
http://puc.sd.gov/

Consumer Advocacy

Division of Consumer Protection
1302 E Hwy 14, Suite 3
Pierre SD 57501-8503
Phone: 605.773.4400
Consumer Help Line: 800.300.1986 (South Dakota only)
Fax: 605.773.7163
Email: consumerhelp@state.sd.us

Low Income Energy Assistance

Department of Social Services
Low Income Energy Assistance Program (LIEAP)
Phone: 605.773.3766
Toll-Free: 800.233.8503
Fax: 605.773.6657
Email: LIEAP@state.sd.us

Major Utilities

Black Hills Power
409 Deadwood Avenue
Rapid City, SD 57702
Phone: 605.721.2660
Toll-Free: 800.843.8849
http://www.blackhillspower.com/ 

MidAmerican Energy
PO Box 778
Sioux City, IA 51101-0778
Phone: 712.277.7500
Toll-Free: 800.567.2801
http://www.midamericanenergy.com/

Montana-Dakota Utilities Co.
400 N. Fourth Street
Bismarck, ND 58501-4092
Phone: 701.222.7900
Toll-Free: 800.638.3278
http://www.montana-dakota.com/Pages/overview.aspx

NorthWestern Energy
3010 W. 69th Street
Sioux Falls, SD 57108
Toll-Free: 800.245.6977
http://www.northwesternenergy.com/   

Otter Tail Power Company
215 S. Cascade Street
Fergus Falls, MN 56537-2897
Phone: 218.739.8200
Toll-Free: 800.257.4044
http://www.otpco.com/

Xcel Energy
500 W. Russell Street
PO Box 988
Sioux Falls, SD 57101-0988
Phone: 605.339.8200
Toll-Free: 800.895.4999
http://www.xcelenergy.com