So you have no idea at all how much it would cost ?
10 years to build a pilot plant ? And then wait for decades to build more plants ? What will we do for power in the meantime ?
So it will be massively subsidised and you still have no idea how much the end price will be ?
What are you going to do when no council on the east coast of Australia will allow you to build one given their resistance to fraccing/csg etc ?
We are already building a ( potential ) multi century nation building renewable energy system.
Asia is already building out renewables. Your model will take so long you won't have a market.
We are also working on an export model for Asia. One they are already very interested in. To the point that they are investing in research in Australia already . A hydrogen export market. No pollution, no nuclear waste, very cheap.
Your business plan is looking a bit shaky. A pollution creating system that will have be subsidised, won't deliver for decades, has no price tag and may not have a market by the time it's finished.