energy efficiency issues paper, page-28

And that is the primary benefit of Fuel cells over Solar.
Because they can provide supply on a 24/7 basis, they can be integrated into the system with load lopping from the grid allowing a reduction in costs as a result of increased demand.
Providing subsidies might help the planet, but do not reduce costs on the overall system when expansion is required. Providing subsidies for fuel cell implementation will reduce these costs and provide a greener alternative at the same time!