The port ofHuelvahas hosted the launch of the Alisios LNG, a new state-of-the-art liquefied natural gas (LNG) supply vessel that will operate along the southern coast of the Iberian Peninsula to supply low-emission marine fuels.
The Alisios LNG, with a capacity of 12,500 cubic meters, is designed to transport and supply both LNG and bio-LNG, fuels considered key in the energy transition of maritime transport. The vessel will operate from Spanish terminals to supply ships navigating the southern Iberian Peninsula.
The vessel incorporates advanced control and maneuverability systems that allow it to operate in different port environments. Moreover, it is equipped with technology designed to maintain the cargo in optimal conditions throughout the journey and minimize emissions during supply operations. With this addition, the Enagás subsidiary expands its fleet of bunkering vessels in southern Europe, which also includes theLevante LNG, theMistral LNGand theHaugesund Knutsen.
The growth of liquefied natural gas infrastructure has turned Spain into a strategic node for the supply of alternative fuels in southern Europe. The country has seven regasification plants, adapted to supply LNG to maritime transport. Furthermore, terminals inBarcelona,Cartagena,HuelvaandEl Muselalready offer bio-LNG supply services for vessels.
LNG bunkering in Spain has experienced strong growth in recent years. Between 2023 and 2025, the activity quadrupled, and only in the last year did loadings increase by 64%, consolidating the country as a strategic center for the supply of alternative fuels.
The use of LNG as a marine fuel eliminates 100% of sulfur oxides (SOx) emissions, reduces nitrogen oxides (NOx) by 80% to 90%, and decreases CO₂ emissions by around 25% compared to traditional fuels. According to industry estimates, the adoption of LNG as a maritime fuel in Spain could lead to a reduction of nearly two million tons of CO₂ by 2030, an amount equivalent to removing more than one million internal combustion vehicles from circulation.