ComEd has selected 30 young women ages 13 to 18 to participate in the sixth-annual ComEd Icebox Derby, a program the energy company developed to encourage women to pursue science, technology, engineering and math (STEM) education and careers. Each participant will receive a $1,500 scholarship. This year, the ComEd Icebox Derby is not only for the participants: Everyone can join in on the fun and have a chance to win big by becoming a Derby Diehard. The public can take up to 12 social media challenges for a chance to win one of several energy-efficient prizes, including a smart refrigerator, smart thermostats, and solar-powered phone chargers. Fans can learn more about Derby Diehards and take a quiz to find out which team matches their personality at IceboxDerby.com. The program will culminate with the race on Saturday, Aug. 3, at Daley Plaza, 50 W. Washington St., Chicago. The festivities will begin at noon, and admission is free for all.