An FPSO for green ammonia obtains approval in principle
Green ammonia is one of shipping’s best long-term bets for carbon-neutral propulsion on deep-sea routes, and it could also be produced offshore, if Norwegian startup H2Carrier is successful. The company has designed a new floating green ammonia production and storage system, dubbed P2XFloater, which absorbs renewable electricity from any economical source and turns it into gaseous fuel. To date, the idea has received approval in principle from DNV.
H2Carrier says the concept relies on proven FPSO technology, combined with off-the-shelf equipment to make green hydrogen and turn that hydrogen into ammonia. The system was designed and refined in consultation with Norwegian process and offshore engineering companies. H2Carrier wishes to build, own and operate a fleet of P2XFloaters.
“The AiP covers all aspects of the integrated vessel concept, including structural integrity, mooring, ammonia production, ammonia storage and cargo handling,” said the vice president. of DNV, Business Development for Floating Generation, Conn Fagan. “The AiP assessment examined the technical challenges associated with offshore ammonia production and concluded that there are no insurmountable difficulties to prevent future classification of the design.”
The idea of the P2XFloater concept is to provide a low-cost, fast and flexible solution to manufacture green ammonia on an industrial scale and at a competitive price, according to Mårten Lunde, CEO of H2Carrier. The marine industry and other industrial consumers would be the main fuel customers.
The production platform is independent of the power source: it can take advantage of hydro, solar, wind or any combination of power generation sources. Units could be positioned to take advantage of low-cost energy opportunities, including options that cannot be commercially developed by ordinary means.
H2Carrier’s plan is to expand its factories as ship conversions, using very large gas carriers as base ships. This avoids the cost and carbon of new construction, while adding a more economical lifespan to an existing hull. The approach is standard for FSO vessels, which typically begin life as VLCCs.
H2Carrier says it is already involved in power generation projects in Scotland and northern Norway, and it expects demand for its product to grow as pressure to decarbonize increases.