A new European partnership is intended to help shipping companies navigate one of the industry’s biggest climate challenges: how to decarbonise the existing fleet quickly, safely, and cost-effectively.
The Fit-Horizons project is bringing together 19 maritime companies, researchers, software developers, and technology providers from across Europe to develop an intelligent and flexible retrofit design environment for low- and zero-emission shipping. Coordinated by Sintef Ocean and funded by the European Union with nearly €4m, the project aims to simplify and accelerate retrofit decisions for shipowners by combining advanced simulation tools, AI-supported modelling, and operational data into one holistic design framework.
The project partners are: Sintef Ocean (Norway), Maritime CleanTech (Norway), Friendship Systems (Germany), Vard Design (Norway), Laskaridis Shipping Company (Greece), SimFWD (Greece), Consiglio Nazionale Delle Ricerche (Italy), bound4blue (Spain), Entwicklungszentrum für Schiffstechnik und Transportsysteme (Germany), Atlantec Enterprise Solutions (Germany), Alfa Laval Rotterdam (Netherlands), ABS (Greece), Hurtigruten (Norway), Tidewater Rederi (Norway), Columbia Shipmanagement (Cyprus), Levante Ferries (Greece), University of Strathclyde (UK), Haeger & Schmidt Logistics (Germany), and LMG Marin (France).
While new zero-emission vessels are entering the market, most ships operating today are expected to remain in service for decades. Retrofitting the existing fleet is therefore essential to achieving international climate targets.
Dr. Kourosh Koushan, Coordinator of Fit-Horizons and Special Advisor at Sintef Ocean, said: “Shipping needs practical pathways to decarbonisation now, not only in the future. Fit-Horizons will help the industry make better retrofit decisions by understanding how different technologies interact onboard a vessel. Our ambition is to reduce uncertainty and accelerate the transition from analysis to implementation.”
The project will develop and validate a flexible design environment capable of evaluating multiple retrofit technologies simultaneously, including alternative fuels, electrification, wind-assisted propulsion systems, air lubrication systems, hull modifications, and energy efficiency solutions.
As one of the project’s technology partners, bound4blue will contribute its experience in wind propulsion, including its eSail suction sail technology to support the development and validation of Fit-Horizons’ holistic retrofit design environment. Its role will focus on supporting the assessment of wind propulsion systems as part of combined retrofit solutions, helping shipowners understand how wind can support practical, scalable decarbonisation pathways for existing fleets.
Rather than assessing technologies in isolation, the Fit-Horizons platform will analyse how combinations of technologies perform together under realistic operating conditions and across different vessel categories. The project will deliver six virtual demonstrations based on real operating vessels representing key European ship segments: inland waterways, short-sea shipping, long-distance shipping, ferries, cruise vessels, and offshore vessels. By integrating machine learning, surrogate modelling, operational data, and high-fidelity simulations, the consortium aims to create a tool environment that can support more reliable, scalable, and commercially viable retrofit decisions across the maritime industry.
Øystein Huglen, Head of Technology and Innovation, Maritime Cleantech, said: “Reconstruction of existing ships to include one or more new technologies is complex and commercially difficult to evaluate. The industry needs tools that make it easier to identify the most effective decarbonisation routes for each vessel.”
The Fit-Horizons consortium builds on experience and knowledge developed through previous European initiatives, while introducing new AI-supported approaches for maritime engineering and retrofit optimisation. The flexible design environment developed in Fit-Horizons is expected to reach a technology readiness level of TRL 7-8 by the end of the project in 2029. The consortium will develop recommendations for best practices, regulatory approval processes, and business models to support faster market uptake of retrofit solutions. As new climate regulations, such as FuelEU Maritime and the EU ETS increase pressure on shipping to reduce emissions, the project aims to provide shipowners and designers with practical tools to navigate an increasingly complex transition.
Image: Inaugural meeting of the Fit-Horizons consortium group in Trondheim (source: bound4blue)
