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NERA designed and implemented a request for proposals on behalf of the Illinois Power Agency to procure electric supply to serve eligible customers of Ameren Illinois Company (AIC) and Commonwealth Edison Company (ComEd). The procurement events held in fall 2026 procured quantities of on- and off-peak energy in monthly periods. The Illinois Commerce Commission approved the results of the block energy procurements that procured electric supply from 1 October 2026 to 31 May 2029.