Iowa Utility Association

  • Phone: 515.282.2115
  • Fax: 515.282.7709
  • Mail:
  • Website:
  • Address: 500 East Court Avenue, Suite 312, Des Moines, IA 50309

Iowa Utility Association


Working on Behalf of Iowa’s Investor-Owned Electric, Natural Gas & Transmission Utilities

The Iowa Utility Association, or IUA, was formed in 1971 to develop, organize and promote improvement in the common business interests and conditions of Iowa’s investor-owned electric, natural gas and transmission utilities. Prior to the formation of the IUA and dating back to the mid-1940s, there had been an informal working relationship among investor-owned utilities to address statewide programs and industry issues.

Today, the IUA operates as a 501(c)6 non-profit corporation. From its offices near the capitol in Des Moines, the IUA works with personnel from its member companies to develop, coordinate and promote common industry public policy. In addition, the IUA organizes various forums to advance public understanding of industry issues and economic development initiatives.

IUA member companies: Alliant Energy | Black Hills Energy | MidAmerican Energy Company | ITC Midwest | Liberty Utilities | NextEra Energy Duane Arnold

About Investor-Owned Utilities

The Iowa investor-owned utilities listed above serve approximately 72 percent of the customers in the state using electricity and approximately 95 percent of the customers using natural gas. The energy utilities above are regulated by the Iowa Utilities Board (IUB) for rates and service. The IUB is a three member full time panel in the Iowa Department of Commerce with a full time professional staff which brings regulatory matters before them. The utilities’ customers are represented by the Office of Consumer Advocate in proceedings before the IUB. The Office of Consumer Advocate is a separate division of the Iowa Attorney General’s Office. The Consumer Advocate’s statutory responsibility is to investigate the legality of rates and practices of all utility companies subject to the jurisdiction of the Iowa Utilities Board, and to represent consumers and the public generally before state and federal agencies concerning those matters. The Consumer Advocate is the chief administrative officer of the division.

Other electric and natural gas utilities in Iowa are regulated by the IUB for service, but their rates are determined either by local city government units or by local boards of directors of member owners. The cost of regulation is included in utility rates paid by customers of our members.

IUB/OCA Building, Photo Credit: Iowa Utilities Board/Don Tormey

Photo: Iowa Utilities Board/Don Tormey, “IUB/OCA LEED Platinum Building”