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Confirm Eligibility

We just need to confirm that you are an Ameren Illinois Energy Efficiency Business business customer.

Please enter your Ameren Illinois business account number and the zip code for your account’s business service address.

*You will be asked to complete this step before finalizing your order.

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Create Your Ameren Illinois Energy Efficiency Business Online Store Account

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  • Passwords must include a number.
  • Passwords must include a special character.

    • *You will be asked to complete this step before finalizing your order.

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