The IUC has regulatory authority over five investor-owned utilities that serve Iowa customers. Related associations work with their respective utilities or members. The websites are not maintained by the IUC.
Investor-owned Utilities
- MidAmerican Energy Company - Information on programs and rebates for residential energy efficiency
- Alliant Energy-Interstate Power & Light Company - Information on programs and rebates for residential energy efficiency
- Black Hills Energy - Energy saving tips
- Liberty Energy (Midstates) Corporation d/b/a Liberty Utilities (f/k/a Atmos Energy) - Iowa Energy Efficiency Program
- Iowa-American Water - Water use calculator and usage tips
Iowa Utility Associations
- Iowa Association of Electric Cooperatives (IAEC) - General energy information
- Iowa Association of Municipal Utilities (IAMU) - General information and energy efficiency program support
- Iowa Utility Association (IUA) - Works with investor-owned electric, natural gas, transmission, and water utilities