http://www.genepax.co.jp/en/energy/
"The system uses no fossil fuel or non-fossil energy in the process of producing electricity and heat from water. Because WES is an independent power source that requires no other outside energy sources, it can be installed in a wide range of locations and does not require establishment of infrastructure."
They say they are using certain metals to isolate the hydrogen to use in a hydrogen fuel cell, but they are highly evasive so far(just look at the answers to frequently asked questions.) My guess is they've only
cut down the amount of outside energy needed to isolate hydrogen from the water molecule. We have the coal and natural gas needed to power cars. We use gas (from oil) because oil companies can make 10 bil a quarter that way. That 10 bil can be used to shut a lot of powerful people up.