Future fuels for ships are a reality today. The new order for a gas fuelled vessel has set a new standard. A new LNG bunkering station will be built in connection with this order, and other ships will also be allowed access to the LNG. The very low gas price is making it highly attractive to invest in gas-powered ships. Current gas prices offer savings of almost 50% in fuel costs compared with heavy fuel oil (HFO). A comparison with marine gas oil (MGO), which is needed when ships operate in emission control areas (ECAs), makes the marine environment even better. Therefore, it makes sense to use gas as the fuel for both operational scenarios.
reference: MAN B&W ENGINES