Alliant Energy

Incorporated in 1981, Alliant Energy Corporation is a public utility holding company. It is comprised of several subsidiaries which provide electricity to northern Iowa, southern Minnesota, Illinois and Wisconsin.

The company also provides non-regulated services, including ground transportation and wind and geothermal energy engineering.

Customer Contact

  • Phone: 1.800.ALLIANT (800.255.4268)
  • Email: customercare@alliantenergy.com
  • Fax: 608.458.0100
  • Mail:
    • Alliant Energy
    • 4902 North Biltmore Lane
    • P.O. Box 77007
    • Madison WI 53707-1007

Emergency Contacts

  • Report outage (IPL): 1.877.740.5050
  • Report outage (WPL): 1.800.862.6261
  • Report gas emergency (IPL): 1.800.255.4268
  • Report gas emergency (WPL): 1.800.862.6263

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