Situation:

Some 3 to 5% of greenhouse gas emissions worldwide come from ammonia fertilizer production

https://www.scientificamerican.com/article/fertilizer-plants-grow-thanks-to-cheap-natural-gas/

N2 + 3H2 => 2NH3

That's in part due to using fossil fuels / hydrocarbons as a source of hydrogen.

Currently in USA/Canada there's lots of cheap natural gas.

Objective:

Cut greenhouse gas emissions from ammonia fertilizer production

Method:

Produce solid fertilizer using electrolysis and solar power during the summer to produce hydrogen, and store solid fertilizer till next spring.

https://www.sciencedaily.com/releases/2016/03/160310080822.htm

- Efficiency of water electrolysis doubled, with improved catalyst

https://cleantechnica.com/2017/01/22/renewables-now-cheapest-renewable-energy-costs-low-too-high/

- utility-scale solar power now competitive with natural gas for power

Benefits:

- reduced greenhouse gas emissions for fertilizer production

- greener supply chain in food crops

-Canada better chance to meet its Paris target

-Oxygen by-product of electrolysis can be released, or piped to any remaining natural gas powered electricity generators for turbo-boost

More on electrolysis:

https://ammoniaindustry.com/ammonia-plant-cost-comparisons-natural-gas-coal-or-electrolysis/