Comment Re:Why natural gas over hydrogen? (Score 1) 306
First you have it mixed around:
The solar cells would (use electricity to) split the water to H2 and O2.
Then the fuel cell would combine (generating electricity) H2 and 02 to produce water.
However, if you think about that cycle, all your electricity is coming from the solar cells. Minus efficiency losses of course.
All the fuel cell does in this application is use up some of your electricity, and produce some heat. Only the solar cells produce electricity.
You would be much better off here just using solar cells and a bunch of batteries to story the electricity for night use.
A fuel cell using natural gas as a source would be cleaner than a combustion engine using NG. Of course, the best system would be a large plant electrolyzing water, then pumping hydrogen to all the houses to power home fuel cells and fuel cell cars.
-Robotic