Topsoe has been selected to supply its ammonia synthesis technology for Acwa Power’s planned 4.4GW green hydrogen and ammonia plant in Saudi Arabia, which could reach final investment decision this year.

The Danish technology firm said it would provide its dynamic ammonia systems to the Yanbu Green Hydrogen Project to allow production to respond to fluctuating renewable energy supply.

Topsoe said the flexibility could reduce both capital and operating costs by limiting the need for large-scale hydrogen storage.