The IUB 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 IUB.
Investor-owned Utilities
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MidAmerican Energy Company - Information on programs and rebates for residential energy efficiency.
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Alliant Energy-Interstate Power & Light Company - Information on programs and rebates for residential energy efficiency.
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Black Hills Energy - Energy saving tips.
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Liberty Energy (Midstates) Corporation d/b/a Liberty Utilities (f/k/a Atmos Energy) - Iowa Energy Efficiency Program.
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Iowa-American Water - Water use calculator and usage tips.
Iowa Utility Associations
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Iowa Association of Electric Cooperatives (IAEC) - General energy information.
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Iowa Association of Municipal Utilities (IAMU) - General information and energy efficiency program support.
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Iowa Utility Association (IUA) - Works with investor-owned electric, natural gas, transmission, and water utilities.