Welcome to The EFI Ameren Illinois Non-Residential Product Offer

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Start saving on ENERGY STAR® certified products through our online store.


This Ameren Illinois/EFI store is exclusively for non-public, non-residential DS-2, DS-3, and DS-4 electric customers of Ameren Illinois, with order delivery restricted to the Ameren Illinois service territory. Distributor discounts and product rebates from Ameren Illinois have already been applied to the net product prices shown here.

For a limited time the incentives on LED light bulbs have been increased by 25% (already incorporated into the net customer price), and a free 4-pack of lightbulbs is available in the "Special Offer" section. These special promotions are good through 12/31/2016 or while promotion funding and supplies last.