Ammonia does not require a plant to generate electricity. While fuel cells running on it require temperatures over 600 Celsius to get to 70% percent of efficiency and not exactly small, with cheap way to produce ammonia they would provide energy dense batteries that could run for months if necessary.
> Ammonia does not require a plant to generate electricity. While fuel cells running on it
OK, so it requires a plant of fuel cells. And the cost per kW (i.e. discharge capacity) is? And it requires some facility to produce the ammonia; what is the cost per kW of electricity consumed, and at what efficiency?
Numbers would help to assess the proposal, given the claim that a halving of the cost of electricity from solar would make all the economics for ammonia work.
