On September 28, 2020, Ameren Missouri announced a new commitment to net-zero carbon dioxide emissions by 2050, with interim goals of 50% emissions reduction in 2030 compared to 2005 levels and 85% emissions reduction by 2040 compared to 2005 levels.[1] The commitment is an update to the targets it set in 2017— 35% reduction by 2030, 50% reduction by 2040, and 80% reduction by 2050. According to the utility, the move is primarily guided by investors and customers. Ameren’s new plan allocates approximately $4.5 billion over the next decade to add 3.1 GW of new wind and solar to its portfolio. By 2040, the utility expects to have 5.4 GW of renewables in its portfolio. Under this plan, the utility will retire its 5 GW og coal-fired generation by 2042: Meramec Energy Center by the end of 2022, the Sioux Energy Center by the end of 2028, two units at the Labadie Energy Center by the end of 2036, both units at the Rush Island Energy Center by the end of 2039, and the remaining two units at the Labadie Energy Center by the end of 2042. The plan also assumes that the operating license for Ameren’s Callaway nuclear facility is extended beyond 2050.

[1] https://www.ameren.com/-/media/missouri-site/files/environment/irp/2020/ch1-executive-summary.pdf?la=en-us-mo&hash=67ECB83304090AE189E1528AABDD2211E5A091BC