The Kenya Nut Company, located near Nairobi, is set to become the first farm in the world to produce fossil fuel-free fertilizer on-site. U.S. startup Talus Renewables has built a small fertilizer plant that uses solar power to extract hydrogen from water. The hydrogen then combines with nitrogen in the air to create liquid ammonia, which can be used as crop fertilizer. Conventionally, ammonia is produced by stripping hydrogen from natural gas, a process that emits significant amounts of carbon dioxide. The production of ammonia is a major contributor to climate change, and supply disruptions can lead to increased prices for farmers. Green ammonia, produced using clean energy, has the potential to mitigate these issues and reduce the carbon footprint of fertilizer production. Locally producing fertilizer can also protect growers from supply shocks and reduce the distance that fertilizers have to travel in sub-Saharan Africa.
https://e360.yale.edu/digest/small-green-ammonia-plant-farm-kenya