We got a look inside Verdagy's pilot plant, where the company is testing its multimillion-dollar electrolyzer designed to turn renewable energy like wind and solar into hydrogen.

Verdagy CEO Marty Neese tells us that hydrogen is "the Swiss Army knife of molecules." It can be used as a fuel source that doesn't produce greenhouse gases; as a way to store excess renewable energy for later use, like a battery; and as a part of the process of making ammonia for agricultural applications like fertilizer.