Missouri regulators OK $172M rate increase for Ameren

Wednesday, July 13, 2011 | 8:31 p.m. CDT; updated 5:31 p.m. CDT, Tuesday, July 19, 2011

JEFFERSON CITY — Missouri utility regulators decided Wednesday to allow Ameren Missouri to increase electric rates by $172 million, but the state's largest utility will not be allowed to recover costs it sought for replacing the Taum Sauk reservoir after the previous one collapsed.