Not with hydrogen they don't.You don't need coal, gas or nuclear...

Not with hydrogen they don't.
You don't need coal, gas or nuclear power generation to produce hydrogen gas.

The future is electric vehicles recharged from renewable power generation & hydrogen vehicles burning hydrogen produced using renewable power.

Australia is never going to build a nuclear power plant nor will it build any new coal fired power generation.

Australia doesn't build any vehicles so it will have to buy whatever the manufacturers build in the future which won't be petrol or diesel powered.

You need a reality check.