The technology group Wärtsilä’s LPG Fuel Supply System (LFSS) has successfully completed full scale testing with a full sized 2-stroke marine engine burning liquid petroleum gas (LPG) as fuel. This was the world’s first such testing protocol. It was initially decided to retrofit the Wärtsilä LFSS to four very large gas carrier (VLGC) vessels owned by Oslo-listed BW LPG, the world’s largest gas shipping company. However, following the tests, in which the performance exceeded expectations, BW LPG decided to exercise their option to retrofit an additional four vessels, making a total of eight ships to benefit from this technology. The initial order with Wärtsilä was placed in December 2018, and the order for the four additional retrofits was signed in February 2020.