March 17, 2010 By
October 13, 2008 By
Hydrogen isn’t actually an energy source — it’s an energy carrier [source: CECA]. Hydrogen carries the energy that’s created when it’s produced. It’s similar to electricity: We can’t burn electricity (which is an energy carrier), but electricity can be produced by burning energy sources like natural gas or petroleum. Then electricity transports this energy to other places, like the outlets in your home.