This is from a new Australian company - Hysata. https://newatlas.com/energy/hysata-efficient-hydrogen-electrolysis/ This could be an important step forward for LENR as well.
It could be a bit more than an incremental progression. Most viable concepts for commercial vehicles which would utilize LENR need to have efficient water-splitting as part of the package. Compressed hydrogen gas as the alternative - that is probably a non-starter for safety reasons,
