How water could be the future of fuel. New generation of fuels could power planes, ships without warming the planet-WAPO

[lapfog_1]

8. I always point out that batteries are not a fuel source when it seems appropriate

Hydrogen, as a free gas, is a fuel source... unfortunately it doesn't appear on the earth in large quantities as a free gas... And when it does, it tends to escape. Vast quantities are locked up as water, both salted and non-salted.

what the article in the OP references using WATER as a fuel source because it contains Hydrogen. But the energy that is required to break the H2 and O bond is relatively large... electrolysis is one method to break the bond. Therefore whatever is used to break the bond is the fuel source.

Strictly speaking, almost all stored energy originates from the sun, either over a period of a growth season ( wood for example ) or over centuries ( or much longer ) in the form of fossil fuels ( which is WHY they are called fossil fuels ). The major exception to this is nuclear fuels.