Illinois

How a suburban Chicago mayor helped inspire the biggest jump in building energy code improvements in a decade

Greater participation by cities tipped the balance toward more ambitious efficiency measures in the latest model code.

Solar backers are hoping lawmakers will offer more flexibility on how soon Future Energy Jobs Act funds need to be spent.

With ridership plummeting amid the coronavirus pandemic, a Chicago coalition is pushing agencies to reconsider service changes.

Only two states added more wind capacity than Illinois in 2019, while Indiana saw growth despite a lack of incentives.

The Triad school district, just outside the St. Louis suburbs, hopes to replace half of its diesel fleet over 15 years.