This marks the first time the company has used renewable biofuel, reflecting a significant move to lower its overall carbon footprint.

The Dublin Swift, the fastest ferry across the Irish Sea with a crossing time of just 135 minutes, resumed its seasoned service on 16 April, 2025, now powered by HVO. This innovative fuel is a fossil-free, renewable alternative to diesel, produced from waste by-products and non-edible elements of the food industry. Not only does it offer a cleaner combustion process, but it also supports the circular economy by repurposing waste materials into energy.

Unlike traditional fossil fuels, HVO produces no additional carbon emissions when used in diesel engines, making it a far more environmentally responsible option. Irish Ferries aims to increase the use of HVO across all four of Dublin Swift’s engines in the coming months, a move that could reduce carbon emissions by up to 90% compared to standard diesel.

Andrew Sheen, Managing Director of Irish Ferries, emphasised the importance of this transition, stating it reflects the company’s ongoing commitment to both innovation and environmental responsibility. “We are proud to partner with Circle K as a supplier in this endeavour and look forward to seeing the positive impact of this transition,” he said.

This initiative represents a meaningful advancement in greener maritime transport and sets a new standard for the company as it continues to invest in sustainable solutions for the future.