Pherousa Green Technologies (PGT) AS  is Norwegian technology transfer company within the maritime industry. PGT develops its own technology and also offers consulting services to help our customers navigate through the transition to ZERO emissions. For inquiries on our services and technology please contact us and we will get in touch with you.

PGT is continuously developing advanced solutions for efficient and ZERO emission shipping. A key measure of the feasibility of zero-emission shipping is whether ships can carry enough fuel to service existing legs and voyages, with hydrogen being the only realistic option for ZERO emissions, this is a challenge. Due to hydrogen’s low volumetric energy density storing hydrogen for voyages longer than a couple of days is a major challenge. In addition bunkering infrastructure for hydrogen does not exist. On the other hand, as of today, there are 120 ports equipped with ammonia trading facilities. 1 mol of ammonia contains 1.5 mol of hydrogen, which is 17.8% by weight or 108 kg of hydrogen per cubic meter embedded in liquid ammonia at 20 C. Comparing this to the most advanced hydrogen storage systems, e.g. metal hydrides, which store 25 kg of hydrogen per cubic meter, the advantage of ammonia in carrying hydrogen per unit volume is significant.