good item moonie..... this has been mooted for quite a few years now, almost a decade. NSW Gov buses ran a trial of hydrogen fuelled buses. just as they did on LNG and battery busses.
I've been hoping hydrogen would become more accessible, but the production process has turned out to be more complex and with slower development than batteries. and so far is much more expensive.
I recall when I raised this years ago there were cries of the risk of explosion, a'la Zeppelin, and the damage to fuel tanks making hydrogen impossible.
