HGK Shipping and Wattlab launch world’s first hybrid solar-powered inland vessel

HGK Shipping, in partnership with Dutch solar energy innovator Wattlab, has unveiled the Blue Marlin - the world’s first inland cargo vessel capable of hybrid propulsion using solar power. The vessel’s 192 solar panels can deliver up to 35 kW, supplying energy to both onboard systems and the vessel’s high-voltage electric propulsion, marking a milestone in sustainable inland shipping.

The Blue Marlin follows HGK’s MS Helios, which previously entered the Guinness Book of Records for having the largest solar array on an inland vessel. Unlike the Helios, whose system powers only low-voltage hotel loads, the Blue Marlin integrates solar power directly into its propulsion system.

“The Blue Marlin now goes one step further by also using solar energy for the power train,” explained Tim Gödde, director Ship Management at HGK Ship Management. “It makes another important contribution to making shipping, which is already a low-emission mode of transport, even more sustainable. We are excited to see how this innovative solution will prove itself in practical operation.”

Installation took place at De Gerlien van Tiem shipyard with support from Blommaert Aluminium and Van Tiem Electro.

“In situations where the ship is lightly loaded and travelling downstream, we anticipate that it may even sail using only solar power for limited periods - an unprecedented achievement in the inland shipping sector,” said Wattlab co-founder and COO David Kester.