We have natural gas heat, central AC, and gas hot water heater. Our electric bill is lower than average, and I get my electric generation from 100% wind power supplier. So that is a big reduction on my "Carbon Footprint". I signed up for that at a home show 6 years ago. The rate is a little higher than my standard electric utility co rate, but not much at all and well worth it to me. You can keep negotiating the rate every 6-12 months with them. I have been w/ the same company for all 6 years and love them. Gas use in my home is only higher in winter and that is for heating the house so that is expected. We are a family of 2 and a small dog, keep the heat set back to 68 in winter and the AC set to 74 in summer. My report shows we are below the avg for household of 2 people, so I am thrilled!