Agreement will power more than 340 Starbucks-operated stores in Illinois with 100 Percent Renewables CHICAGO: Constellation, an Exelon (NYSE:EXC) company and the nation’s leading competitive energy provider, has signed a long-term agreement with Starbucks to power more than 340 company-operated Illinois stores with 100 percent renewable energy produced by Enel Green Power (EGP) North America, […]