Navigator Gas awarded DNV AiP for ammonia-fuelled gas carrier

by 17, Sep, 2021Innovation, Maritime 4.00 comments


Navigator Gas, the owner and operator of the world’s largest fleet of handysize liquefied gas carriers, has received a new AiP from DNV for an ammonia fuelled gas carrier. Image courtesy of Navigator Gas.

Navigator Gas has been awarded a new Approval in Principle (AiP) for an ammonia-fuelled gas carrier design from DNV.

An industrywide consortium, including MAN Energy solutions, Babcock International, and the Norwegian Maritime Authority (NMA), has collaborated with Navigator Gas to achieve the Approval in Principle (AiP) from DNV.

The new gas carrier design has been awarded the AiP based on the special features notation (GF NH3) under DNV’s new rules for the use of ammonia as fuel in gas carriers. DNV, alongside the NMA, reviewed the design and relevant documentation and found no potential showstoppers to its realisation.

“Navigator Gas has been discussing Ammonia as a fuel with our consortium partners since 2018, when this topic was on the fringes of discussions surrounding decarbonisation and the use of alternative fuels,” said Paul Flaherty, technical advisor to Navigator Gas. “Those early discussions on feasibility led to the completion of a comprehensive HAZID in early 2019, which remains as valid today as it was then. This has also been used as the base safety case during our AiP discussions with DNV. Since our discussions began, we have witnessed an exponential increase in the number of projects around the globe looking at Hydrogen and Ammonia as carbon free source of energy. We have also been engaging with our customers and business partners to discuss their carbon free shipping requirements for transporting Blue/Green Ammonia to their customers.”

“Obtaining an AiP from DNV for an Ammonia fuelled vessels is the first step in preparing Navigator Gas to meet the future demands of our customers and to reduce our carbon footprint through lower greenhouse gas emissions. In the longer term, using Ammonia as fuel is one of Alternative Fuels options we are pursuing, along with CCS, Carbon Offsetting and improved Vessel Optimisation to reduce our carbon footprint and lower greenhouse gas emissions. I would like to thank DNV, MAN Energy Solutions, Babcock International and the Norwegian Maritime Authority, for their unwavering support and input during the AiP process,” said Flaherty.

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