[jasonwatkinspdx]

Completely wrong.

Globally over 95% of hydrogen is sourced from fossil fuels, particularly natural gas wells. Electrolysis is very limited to niche applications or token projects.

[bombcar]

Maybe that's what it was - produced onsite via steam extraction from piped in natural gas (which means you could just as easily burn the natural gas in the vehicle).

Either way there aren't many trucks full of hydrogen zipping around.

[mmooss]

The electrolysis needs power and could be fueled by fossil fuels.