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Natural gas interruptible program for Iowa businesses

Check the current interruptible status

In exchange for reducing consumption during periods of extreme demand, your company can receive a discount on natural gas pricing for the entire year.


Who is eligible to participate in the natural gas interruptible program?

Iowa natural gas customers that use at least 20 dekatherms (dk) per day for at least six consecutive months a year are eligible.

How does the program work?

  • When natural gas infrastructure faces high demand, we may send a warning to prepare you for an interruption.
  • If we call for an interruption, we give a minimum of two hours’ notice, per tariff requirements. We make every effort to provide as much advance notice as possible.
  • We send communications to the people you choose from your company.
  • Your company must reduce usage to a predetermined level, usually 1 dk per day.
  • We send another message when the curtailment period ends.
  • We do not disconnect your gas service.

Can I cancel my business's participation in the program?

Your business may return to uninterruptible supply service, subject to our ability to obtain additional supply and firm pipeline capacity to serve the firm load. Your company will also need to sign a contract for firm service for a one-year period.

Review the tariff rate sheets for more information:

Large general gas service tariff rate sheets.pdf

Current interruptible status

Get started today


Contact your Alliant Energy key account manager to sign up or learn more.

Key account manager map [PDF]

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