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Also nitrogen fertilizer is produced using fossil fuel derived hydrogen. Making green fertilizer from the air is possible but requires a 10x increase in energy

Also nitrogen fertilizer is produced using fossil fuel derived hydrogen. Making green fertilizer from the air is possible but requires a 10x increase in energy input into a process that is already one of the worlds most energy intensive industries.

defrost 2y ago
It's on the list: https://energy.fortescue.com/en/green-energy-tech/green-ammonia https://energy.fortescue.com/en/green-energy-tech/green-ammo... https://www.fertilizerseurope.com/paving-the-way-to-green-ammonia-and-low-carbon-fertilizers/ https://www.fertilizerseurope.com/paving-the-way-to-green-am... https://www.yara.com.au/crop-nutrition/grow-the-future/sustainable-farming/green-ammonia/ https://www.yara.com.au/crop-nutrition/grow-the-future/susta... with capital investment and scheduled ground breaking on plants: https://energy.fortescue.com/en/our-green-projects/gibson-island https://energy.fortescue.com/en/our-green-projects/gibson-is...
pfdietz 2y ago
How does it require 10x the energy input? That makes little sense.
- defrost 2y ago
  I haven't run any numbers but I suspect they're referring to the energy cost of cracking water for hydrogen Vs. the energy costs of bleeding off and saving hydrogen as a side product from LNG and hydrocarben wells.
  - pfdietz 2y ago
    Even that makes no sense. Turning methane in electrical power is about 60% efficient in combined cycle plants. Electrolysers are at least 50% efficient. Where is this 10x coming from?
    - defrost 2y ago
      > Where is this 10x coming from? You would have to ask them again, demanding their thought process or sources from third parties like myself is fruitless.