The 2016 Green Drives Conference and Expo - the fifth such annual event co-hosted by the Chicago, Wisconsin and South Shore Clean Cities groups - displayed a wide variety of alternatively-powered trucks and cars at the Northern Illinois University (NIU) Conference Center in Naperville, IL. Over 200 fleet managers representing commercial, government, and municipal operations, along with vehicle suppliers, fuel providers, and clean energy experts attended the one-day event to get a hands-on look at some of the latest technologies being deployed in the alternative fuel vehicle (AFV) arena. (All photos by Sean Kilcarr/Fleet Owner)