Chicago Switches Its 400+ City Buildings to 100% Clean Power

Eight years ago, the City of Chicago vowed to eventually run all its operations on carbon-free power. Now, it has fulfilled that promise, thanks to the largest U.S. solar farm east of the Mississippi River-and a temporary reliance on renewable energy credits.

The city's 400+ buildings consume nearly 800,000 megawatt-hours of electricity each year, and, "as of January 1, every single one of them-including 98 fire