Thoughts and comments about switching to hydrogen as a fuel
There are many unproven ideas floating around the Internet, but steam separation of methane and electrolysis of water are the two known effective ways to obtain hydrogen as a gas. Separation of Methane can contribute to environmental polution and uses petrolium based resources. Electrolysis of water to obtain hydrogen requires electricity, a lot of electricity, but other than byproducts of making that electricity, the method is environmentally friendly.
12 April 2010
In the not too distant future, Hydrogen and Oxygen will be available near major transportation routes, much like gasoline (petrol) is today. The present day problem holding us back is centralized generation of hydrogen and it's transport & storage in a myriad of locations. In the future hydrogen will be made at the site where it is to be dispensed as a motor fuel. Requirements for this are water and electricity. With each "service station" already having a water supply, we only need to add space for large solar cell arrays, and storage tanks for the hydrogen and oxygen. If these solar cell panels are elevated, then the storage and pumping facilities can be located directly under the solar arrays. Shade from the solar panels help keep the storage tanks cool in summer.
Conventional (i.e. what is available today) hydrogen power engines do not make use of the oxygen that is released in electrolysis operations. Oxygen then becomes a marketable byproduct of the service station business. There should be many uses for this formerly expensive gas, but even if we just dump it into the atmosphere this is not all that bad. It will help offset part of the CO2 emission problem.