The Midcontinent Independent System Operator, its independent market monitor and Dyengy Inc. formally challenged allegations that the grid operator's April capacity auction yielded excessive prices that will needlessly push up electricity bills for southern Illinois consumers.
After more than five years, a proposed underground coal mine in central Illinois remains in a holding pattern. But as permitting processes drag on, landowners opposed to the Bulldog Mine have not let down their guard.
A coalition of environmental and neighborhood groups say it is "unconscionable" that the Illinois EPA is not following through on an effort to regulate petcoke storage statewide.
Proposed new temperature limits on Chicago-area waterways could hasten the demise of two coal-fired power plants.
A laser technology capable of detecting carbon dioxide emissions in near real-time is being tested above ground at an Illinois carbon sequestration site.
A pair of southern Illinois lawmakers are declaring war on coal -- specifically, the kind hauled hundreds of miles by rail from Wyoming's Powder River Basin.
An Exelon Corp. executive told Illinois legislators Wednesday that the fate of three unprofitable nuclear plants in the state will be decided later this summer.
Illinois officials searching for answers about the spike in generation capacity prices in the southern half of the state went straight to the source during a legislative hearing Monday.
Energy and related environment issues have so far taken a back seat in Illinois, but experts and advocates are watching closely for signs of what the new Republican gubernatorial administration will mean on that front.
Wind and solar energy support about 30,000 jobs at about a thousand companies in Wisconsin, Illinois and Iowa, according to a recent series of reports.