How Liquified NATURAL GAS Tankers Work

Why It Matters

LNG carriers are critical infrastructure for energy security and seasonal heating supply, making their safety, availability, and limited production capacity strategically important for countries reliant on imported gas.

Summary

Liquefied natural gas (LNG) carriers are purpose-built vessels featuring large spherical, heavily insulated tanks that store LNG at about -62°C to keep it in liquid form during long voyages. The extreme cold and risk of vaporization—LNG expands roughly 600 times when it reverts to gas—mean containment failures can produce catastrophic explosions, so these ships are engineered like giant flasks for maximum thermal protection. Their complexity and cost limit construction to a handful of specialized shipyards. A single modern carrier can transport enough fuel to heat tens of thousands of homes for months on a single voyage.