The choice of fuel is an increasingly important decision for ship operators, affecting both profitability and environmental compliance. Liquefied natural gas, or LNG, is an attractively priced and sustainable fuel that reduces environmental risks and harmful emissions. Switching to LNG as primary fuel, either by building from new or converting existing technology, requires an initial investment but can generate significant savings in fuel costs, increasing the profitability of vessel operators and reducing risks. This improvement in lifecycle cost for a vessel is a key motivation to change and take a competitive advantage.