[stboz]

You want massive amounts of ammonia? Then you will use steam reforming of natural gas to yield hydrogen. You will then mix the hydrogen with air, compress the mixture, pass it over a catalyst to get your ammonia. You will then have to cool and liquefy the ammonia to store it.

You will expend much energy. Thermodynamics rules!

[Hostage]

It looks as if no one should post back to you because you have all knowledge and all answers!

And the rest here don't know a thing about thermodynamics, right?

[Calvin Locke]

I've seen plans for a solar icemaker. IIRC, the ammonia gas is cooled to a liquid state by a coil in a simple
ambient temperature water bath (heat sink).

Of course, that system was enclosed, with calcium chloride (road salt) as the gas storage medium.