A coalition of attorneys general are demanding that the SEC require companies to disclose their GHG emissions annually, as well as any mitigation plans.

The fate of Exelon’s Byron and Dresden nuclear plants depends on whether the Illinois legislature can pass a comprehensive energy package with substantial support for the two plants, CEO Christopher Crane said during the company’s first-quarter earnings call Wednesday. And lawmakers only have until the end of their official session...

Vistra on Tuesday said that it will idle units at its coal- and gas-fired Joppa Power Plant next year, three years earlier than planned. The Texas-based competitive supplier also said that, pending passage of legislation in Illinois, it will invest more than $550 million to develop about 300 MW of...