Sustainability and Impact Report

The report describes Ameren's 2025 work to modernize a reliable, resilient energy grid and support communities in Missouri and Illinois. Its latest tabulated environmental data are for 2024: Scope 1, 2, and 3 emissions were 18,459,425, 80,295, and 15,071,381 Metric Tons CO2e, respectively, and water consumption was 27,032 megaliters. The report also highlights tornado recovery and states that Ameren provided or facilitated more than $140 million in customer energy assistance during 2025. It describes regional investments in transmission, renewable generation, and community energy-efficiency efforts.