by Matias Niemeläinen, Naval Architect - Hydrodynamics, Juho Suortti, Naval Architect - Hydrodynamics, Aki Ruohonen, Naval Architect - Hydrodynamics, and Mia Elg, R&D and Consulting Services, Deltamarin

Shipowners are increasingly exploring hydrodynamic efficiency improvements - including energy-saving devices (ESDs) and hull-form retrofits - to cut fuel consumption, improve Carbon Intensity Indicator performance, and strengthen short-term returns on existing tonnage.

With fuel prices and emissions pressure rising - and the International Maritime Organization's Net-Zero Framework delayed by a year (or for who knows how long) - many owners are focused on keeping existing tonnage compliant and economically competitive for as long as possible before committing to new fuels and newbuilds. Download PDF