Here's the problem. Hydrogen is, on a small lab scale -a viable fuel. Its getting it up to larger scales of implementation that buggers the equation.

Being able to produce Hydrogen as a fuel or a medium of energy storage is the problem and that will require research funding.

How does that compete with the rest or our energy options and how soon will returns be realized is a business plan that needs to be justified.

Focused Photovoltaics are reaching commercial viability. Companies in Australia give or take funding availability have demonstrated this to be feasible.

Investment in this sector is cyclical to fuel prices. That is why government support through policies are needed to subsidize and at times guarantee their viability. Solar power for instance have preferred status on feed in tariffs, whereby a fixed rate is paid for the power generated by renewables and are given priority on the spot market during peak hours. Which in the case of solar is pretty obvious given its cycle availability.