Tri-fuel diesel-electric (TFDE) LNG carriers could be retrofitted with fuel cells to improve their residual value, GasLog chairman Peter Livanos said.

Speaking in a third-quarter results call, Livanos said there are evolutionary changes that can be made to improve ship efficiencies but also “revolutionary” ones.

Livanos added that fuel-cell technology is more applicable as a retrofit option to TFDE ships than slow-speed diesel vessels, as half of the propulsion on a tri-fuel unit is electric motors.