Electric utility Ameren Corp. (NYSE: AEE) on Monday said it plans to operate with net-zero carbon emissions by 2050, a more aggressive goal than previously outlined, but environmentalists still criticized the announcement as inadequate.
Ameren said it would invest nearly $8 billion in renewable energy over the next 20 years, adding 3,100 megawatts of renewables by 2030. Renewables, including wind and solar power, would increase to 5,400 megawatts by 2040, it said. Ameren also said all coal-fired…