Not at 15% efficiency you didn’t. ;-)
Direct to electric solar tops out in the low 20%’s in anything affordable and electric storage is impractical. Electrolysis is horribly inefficient. 15% direct to hydrogen is orders of magnitude more efficient than solar>electrolysis>H conversion. You will note that I did not say run your car on it. I said HVAC and water heat. If these panels are realistically priced would you not like to see a 60% drop in electric/gas bills?
Bills would still be high, they would just up the portion for transmission charges and such. My actual power usage is about 40 bucks a month, the bill is over 300.
Orders? Isn't it about the same? The last numbers I saw from pro-solar types say that it's 8 watts into electrolysis to get enough H2 to produce 1 watt.
It's not a great idea for most people.