Generate ammonia on a farm using solar power and water. New techniques for using low power plasmas for producing Ammonia are possible. This would allow a farmer to produce Ammonia at their farm instead of shipping it in. Ammonia can potentially be turned into Hydrogen to run their farm equipment (in some far off future) and potentially power the home too.
Totally not my idea, read about the possibility of it. Just writing it down because I can perhaps do it.