A rendering of Ameren Missouri’s planned Castle Bluff project. The natural gas plant would be in south St. Louis County. (click for larger version)
Ameren Corporation, a regional electric utility, currently produces two-thirds of its electricity using coal-fired power plants (and almost no gas-fired plants). By 2045, the company plans to have no electricity produced by coal, with unreliable renewables making up most of the mix. The unreliable renewables need a backup --- natural gas. The company recently firmed up plans to build one of two new gas-fired power plants. Ameren's Castle Bluff Energy Center will sit at the confluence of the Meramec and Mississippi rivers near St. Louis, MO, next to where the former Meramec Energy Center burned coal for decades.
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