EcoNavis Solutions, a Glasgow-based maritime technology firm, has partnered with Singapore’s ShipDyn to introduce a groundbreaking hull design known as the Y-Hull. This innovative form combines the stability and deck space of a catamaran with the efficiency of a monohull, aiming to revolutionise maritime fuel efficiency and safety.
The Y-Hull features twin forward demihulls that merge into a single monohull aft, allowing the vessel to operate with one engine and propeller. This design not only enhances stability and reduces wake impact but also significantly cuts fuel consumption. A prototype ferry operating in Bangladesh has already reported a 25% reduction in fuel use compared to traditional monohulls.
ShipDyn founder Amitavo Wye, inspired by a real-life safety incident, developed the Y-Hull to improve vessel stability and reduce coastal erosion. “The Y-Hull delivers much more: fuel savings, more environmental benefits, and more comfortable seakeeping,” Wye stated.
EcoNavis CEO Batuhan Aktas highlighted the Y-Hull’s potential for offshore wind crew transfer vessels, which are fuel-intensive. The partnership is refining the design through simulations and tests, with plans to commercialise the technology. They have applied for funding from the UK Government’s Transport Research and Innovation Grant to expedite market entry.
Beyond renewable energy, the Y-Hull could benefit leisure marine, passenger, and commercial sectors, particularly in sensitive waterways. Larger ships like tankers could see significant emissions reductions, with estimates of saving 4,500 tonnes of CO₂ annually for a 240-metre tanker. The design also offers retrofitting potential, allowing existing vessels to gain efficiency without a full rebuild.
