Stena Line's energy saving project manager Lars-Erik Hellring told TradeWinds that real-time analysis of vessel performance is being introduced on more and more of its ferries.

Two ro-paxes are due to install the NAPA-designed field management system next week, bringing to 22 the number of ships using the technology.

And this will rise to 25 or 26 of its 40-strong fleet in the near future, Hellring added.

The