Renewable ammonia, also known as green ammonia, is made from air, water, and renewable electricity. Renewable electricity is used to produce hydrogen from water through a process called electrolysis. The hydrogen reacts with nitrogen, which is separated from the air. The resulting ammonia is called renewable or green ammonia because it is made from renewable resources.
Renewable ammonia is the same chemical formulation as anhydrous ammonia, NH3. The only difference is that renewable ammonia is made from air, water, and renewable electricity. Traditional anhydrous ammonia is typically made from natural gas and, therefore, results in CO2 emissions. Renewable ammonia production does not result in CO2 emissions.
The technology to produce renewable ammonia is well-proven. There is a 100-year history of making ammonia from air, water, and electricity. However, it has only recently become cost-competitive in the U.S. because of low-cost wind power. Another advantage of renewable ammonia technology is its smaller scale, allowing for plant sizes to service local and regional communities.
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