HE IS NOT DENYING
Basically, he is not denying that hydrogen cannot be used as fuel as he said that you need on board cylinder and only thing which he is trying to highlight here is that your electrolysis process may not be strong enough to produce sufficient hydrogen to burn remaining fuel efficiently. I agree with him on first point but disagree on second.
DO YOU REALLY UNDERSTAND WHAT HE SAID
“Hydrogen created by electrolysis "on board" must always consume more energy than is saved in order to not violate conservation of energy laws”
First his statement is not written properly or he does not know what he is trying to say, “does he refers to that the hydrogen which will be produced by on board electrolysis will be different than one stored in cylinders” OR “On board electrolysis equipment is not sufficient to produce the quantity of hydrogen needed to assist combustion of fossil fuel” OR “current produced by onboard equipment is not sufficient to produce hydrogen needed for complete combustion of fossil fuel” OR “he means that on board equipment cannot produce hydrogen needed to completely run the vehicle on hydrogen”
If he means that producing energy from water violates the conservation of energy through on board equipment (electrolysis) then I will later refer you to a research document undertaken by United States government where it is clearly said
“Energy needed to break water + hydrogen bond and energy in return hydrogen can give are two separate things and should not be confused”
Now, if I present you this then what do you have to say. I will do this later, as I need to look back into the research papers.
“I also said, that I need to look into that how much Amperes is needed to produce hydrogen which will be sufficient to 100 % burn the fossil fuel and type of cell needed to accomplish this.
Remember, hydrogen is not being used to run this car here but is being used to assist the burning of fossil fuel and small quantity of hydrogen does this very well.
WHY ARE YOU LOOKING INTO WIKIPEDIA
Secondly why are you taking Wikipedia as an authenticated site as per this is concerned. Anyone, even though he does not have degree can change the article and this is how this sites works. “If your servant does not knows that Neil Armstrong was the first man who stepped onto moon and writes that no man ever stepped into moon” then would you accept that statement as authenticated. I guess no, most probably as most of us know that “yes Neil Armstrong stepped onto moon” so that piece of information will be changed very soon but here most of us in real world are not engineers or research scientist who looks into Wikipedia to make sure that piece of information is not changed.
P.S: REPORT DATE OF PDF DOCUMENT ABOVE IS MAY, 1977. i WAS BORN IN 1978 HENCE IF YOU REMEMBER WE DID NOT HAD DSL TILL 2006 SO ALOT HAS CHANGED AFTER 1977