large facility

I work for a retail supercenter in the midwest called meijer. We have approximately 200 retail outlets each about 100,000 square feet. I was wondering if it would be feasible to convert our stores to solar energy? I am not in charge of undertaking such a large project and I've bounced the idea off a couple collegues and they seem to think It's a great idea. The one we spoke with said that he doesn't believe it would be enough power to run our freezes units and HVAC units in a retail environment. I don't believe any of this has been attempted on this large of scale and was hoping to get feedback from people who know better than i. Thank you for your time and i would appreciate anything you can give so that i can get some more insight.