The decision to install solar panels can be driven by factors like a desire to use clean energy or an interest in becoming more self-sufficient when it comes to electricity. But when large companies choose to go solar, they’re doing so based on the dollars and cents of the investment. You may not know if the Target or Walmart store you’re shopping at has solar, but if it does, it’s saving the company money. And today, U.S. corporations are installing solar energy rapidly as a way to save millions of dollars.