Full slots in a building boom for shipyards has seen concerns over unfamiliar wind power, added to vessel designs, with yards refusing to build to non-standard plans, rejecting orders. Two owners describe how they have managed to persuade yards otherwise

Advances in battery technology make it possible for short-sea ships and feeder vessels to electrify. That simultaneously offers the possibility to cut costs and emissions and improve vessel efficiency

Savings of more than 50% on fleet-wide emissions can be achieved using cheap modifications on ships. Compared to the cost of building new LNG powered vessels, there is no contest. And the cuts to carbon emissions are twice as high