image: Siemens

Siemens Tests Ammonia as a Form of Energy Storage for Renewables

The German industrial giant Siemens is investigating the use of ammonia as a way to store and transport hydrogen in energy systems with high penetration of renewables.

The company this month opened a £1.5 million ($2 million) proof-of-concept plant in Harwell, Oxfordshire, U.K. to test the efficiency of converting electricity to hydrogen, and then to ammonia, and then back.

The plant, funded one-third by Siemens and two-thirds by government agency Innovate U.K., is thought to be the first of its kind in the world.

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