Defenders of the Illinois nuclear subsidy program faced harsh questioning from a judge skeptical that it avoids federal pre-emption concerns.

MISO’s Zone 4 either has sufficient reserves or is in dire straits, depending on the viewpoint expressed at an Illinois Commerce Commission workshop.

Dynegy’s most recent bid to develop a specialized capacity market for downstate Illinois has failed to gain traction in the state’s legislature.

The Illinois Commerce Commission issued strengthened consumer protections against the marketing practices of alternative retail electric suppliers.

The Illinois Commerce Commission conditionally approved Ameren’s request to lower the utility’s energy-efficiency goals under state law.

Ameren Illinois may have hit a roadblock in its efforts to lower its energy efficiency targets prescribed under a new law.

Environmental and consumer activists accused Ameren Illinois of attempting to bypass energy efficiency targets set by the state.

NRG Energy CEO Mauricio Gutierrez said he is optimistic that courts will find that the zero-emission credits being issued to nuclear generators are harmful.

Exelon said they will press PJM to enact changes boosting off-peak prices and are confident nuclear plants in New York and Illinois will survive challenges.

A federal judge dismissed challenges to Illinois’ zero-emission credit program, saying the plaintiffs lacked standing.