>Then that goes into either a boiler and one of our more traditional plants, or goes into our Co-Gen system… We add fuel (our fuel is 97% natural gas). We only

>Then that goes into either a boiler and one of our more traditional plants, or goes into our Co-Gen system… We add fuel (our fuel is 97% natural gas). We only use fuel oil in the dead of winter if there’s a natural gas shortage or emergency Halfway down the article I found the answer to my question—what energy heats the water for steam? Natural gas