Pritzker’s energy policy promises 40% renewable power by 2030. But Illinois has fallen short of earlier targets.

The credits, which are sold separately from the energy itself but entitle the buyer to claim its environmental benefits, each represent 1 megawatt-hour of electricity. For context, the average ComEd customer, using bundled electric service, consumes a little less than seven megawatt-hours of electricity per year, according to the ICC.