If a utility chooses to invest in renewable energy sources, the state could penalize the company with a fine for each megawatt of energy not produced from the sources deemed acceptable.

Sponsored by the Senate Appropriations Committee, Senate File 125 would require energy utilities to provide a vast majority, 95 percent, of their electricity from a restricted list of energy sources by 2021. Eligible generating sources include coal, oil and natural gas — the state’s primary economic engines. By 2022, utilities would be required to procure 100 percent of their electricity from the list of sources.