I'm an engineer with 35 years experience in electronics and optics. I've closely watched the evolution of efficiency in energy production since the 1950's. Among my experiences experiences has been as technical advisor to one of the leading intellectual property law firms in Silicon Valley where I regularly debunked technological scams like the one you posted on this thread.
Bob Lazar's(!) crazy get-rich-quick hydrogen car scheme (1.) makes no economic sense, (2.) it makes no fuel efficiency sense and (3.) it does not lessen our dependence on foreign imports of fossil fuels.
This is nothing less than a scam and it depends on gullible people for its success.
--Boot Hill
--as an aside, IIRC some years ago I saw figures on solar cells indicating that the electrical requirements of the LA basin would require panels covering an area equal to Arizona--