2nd Life Cycle GHG Emission Study on the Use of LNG as Marine Fuel

“Sphera conducted a milestone study on the GHG emissions associated with the use of LNG as a marine fuel in the Maritime Transport Sector.“

Steve Esau, General Manager, SEA-LNG
Mark Bell, General Manager, SGMF

On an engine technology basis, the Well-to-Wake GHG emissions reduction benefits are between 14% to 23% for 2-stroke slow-speed engines, and between 6% to 14% for 4-stroke medium-speed engines compared with oil-fueled engines. The study forecasts that, by 2030, 2-stroke engines using LNG will offer GHG benefits of up to 24%, 4-stroke engines of up to 22%, and technological improvements will significantly reduce and minimize methane emissions.

The comprehensive report uses the latest primary data to assess all major types of marine engines and global sources of supply with quality data provided by original equipment manufacturers including Caterpillar MaK, Caterpillar Solar Turbines, GE, MAN Energy Solutions, Rolls Royce (MTU), Wärtsilä, and Winterthur Gas & Diesel, as well as from ExxonMobil, Shell, and Total on the supply side. Methane emissions from the supply chains as well as methane released during the onboard combustion process (methane slip) have been included in the analysis.

Download the Study