After lunch, D. Jones, a mechanical engineer, had somewhere to go so we did a static walk-around and driver seat tour. But at the end, he asked "What about hydrogen?" So I answered: The hydrogen has less energy than what was used to manufacture ... about 75% less. Hydrogen from electrolysis is even less efficient than steam reformulated methane. Anhydrous ammonia makes more sense with less pressure and 3x the amount of hydrogen per mole. I spoke with his lady friend back in the restaurant who asked about what happened. I pointed out that because we both were trained in mechanical engineering, I enjoyed technical talk without have to educate each other. I sure wish he'd had 30 minutes for a proper Tesla test drive. Bob Wilson
