Wärtsilä will supply three 25DF dual-fuel engines for a new 18,600 m3 capacity LNG Bunkering vessel being built for Spanish operator Ibaizabal. The engines will feature Wärtsilä’s NextDF technology, which reduces methane emissions when operating with LNG fuel. The ship is being built at the Hudong-Zhonghua Shipbuilding yard in China, and the order was booked by Wärtsilä in Q4 2024.
LNG is an important transition fuel as the marine industry strives to reduce its carbon footprint. However, the main component of LNG is methane and when burned as a fuel, a very small amount may not combust properly, leading to methane escaping into the atmosphere.
The Wärtsilä 25DF engine has already set an industry benchmark for low methane emissions, down to as low as 1.4 percent at certain load points. The NextDF feature further reduces methane emissions, achieving as low as 1.1 per cent in a wide load range. What’s more, the nitrogen oxide (NOx) emissions are lower than on the standard Wärtsilä 25DF engine which already has low emission levels below IMO Tier III.
Jose Maria Torre, fleet director of Ibaizabal says: ‘Our company strategy and commitment is for our vessels to be as environmentally friendly and sustainable as possible. In line with current and anticipated regulations – both at an international and regional level – we carefully evaluated the fuel consumption and emission performance together with Wärtsilä, concluding that the Wärtsilä 25DF engine with the NextDF feature would best support us with achieving our sustainability goals.’
Stefan Nysjö, vice president of power supply, Wärtsilä Marine adds: ‘The incorporation of our NextDF feature into the Wärtsilä 25DF engine provides enhanced fuel economy together with a significant cut in emissions. We share Ibaizabal’s commitment to decarbonising shipping operations and applaud them for being the first operator to take advantage of this new groundbreaking technology for the Wärtsilä 25DF engine.’
