What happens to what remains of the natural gas after the hydrogen is extracted from it?

After hydrogen is extracted from natural gas, a small amount of carbon remains. The ClearEdge5 fuel cell system processes the remaining carbon to exhaust CO2. Because the ClearEdge5 fuel cell system has a very high energy conversion efficiency, significantly less natural gas is needed to produce the same amount of energy. With significantly less gas consumed, the amount of CO2 released is equally reduced. Typically, the fuel-to-energy efficiency for a building is about 50% efficient. Please note, that there is less than a 40% efficiency level for the electricity delivered by the grid and about an 80% efficiency level for conventional heating. Together it yields a weighted average of about 50% efficiency. The ClearEdge5 can provide an energy conversion efficiency as high as 90%, when all the heat is used in the building. This 80% increase (90% vs. 50%) in efficiency is like trading in a 20 MPG car for a 35 MPG one – a lot less fuel gets consumed and a lot less CO2 released.