World-first installation demonstrates how wind-assisted propulsion is extending beyond large cargo ships into multipurpose vessel operations.
Spanish wind propulsion specialist bound4blue has completed the installation of a 22-metre-high eSAIL® on board the new multipurpose cargo vessel Na Hiro E Pae, marking what is believed to be the first application of wind-assisted propulsion on a vessel of its type.
The installation represents a significant milestone for vessel owner Société de Navigation des Australes (SNA) Tuha’a Pae Shipping Company and further demonstrates the growing adoption of wind-assisted propulsion across an increasingly diverse range of commercial vessel segments.
Designed to serve the remote islands of French Polynesia, Na Hiro E Pae is part of a long-standing regional tradition. Multipurpose cargo vessels operating in the territory are commonly known as “goelettes” – a reference to the sailing schooners that historically transported cargo and supplies between isolated island communities.
The installation was carried out at Astilleros Armon Vigo, Spain, prior to the vessel delivery. Today, Na Hiro E Pae operates between Tahiti and the remote Austral Islands, transporting passengers, food supplies and general cargo, providing a vital maritime lifeline for local communities.
The project represents an industry first in many respects, for both the shipowner and bound4blue. Na Hiro E Pae delivers a rare mix of passenger comfort, with capacity for up to 200 passengers, alongside an essential and affordable transport link for students, families and workers, and cargo efficiency, supporting fast loading and unloading operations for up to 1,500 tonnes of vital supplies for the South Pacific archipelago, making the project especially meaningful for the region.
In addition, bound4blue’s mechanically simple suction sail, producing up to seven times the propulsive force of a standard rigid sail of the same size, slots into a ‘green technology mix’ that includes engines capable of running on biofuel or e-fuel, electric POD propulsion, efficient waste management, and autonomy in fresh water supply. The development marks the first time an advanced Wind Propulsion System (WPS) has been installed on a multipurpose vessel of this kind, as well as the first time such technology has been deployed in the region.
It is, says José Miguel Bermúdez, CEO and co-founder of bound4blue, “a significant step forward” in the roll-out of wind power. Multipurpose vessels have traditionally been seen as a challenging segment for wind power, due to the required flexibility of operations and related integration demands. This project demonstrates how systems suppliers, naval architects, shipowners and other key stakeholders can solve such issues, collaborating closely to empower progress.”
“We’re particularly pleased to have been selected alongside so many complementary technologies, providing a tangible example of how owners can combine solutions to optimise environmental and commercial performance. We hope Na Hiro E Pae leads the way for other ambitious shipping companies keen to unlock sustainable advantages.”
bound4blue’s single eSAIL® is expected to reduce energy consumption by approximately 10%, as well as helping improve the Cotenaval-designed vessel’s EEDI and CII performances.
The newbuild forms part of a broader effort to modernise maritime transport links serving the Austral Islands, while supporting sustainability goals and local economic development. The project previously received support through the French Polynesian Government’s Appel à Manifestation d’Intérêt initiative, recognising its contribution to fleet renewal, regional connectivity and environmental performance.
Boris PIEL technical Director, SNA Tuha’a Pae Shipping Company, comments: “The completion of this installation brings us one step closer to welcoming a new generation of vessel into service for the people of the Austral Islands. Sustainability was a key objective throughout the design process, and the eSAIL® forms an important part of a wider package of technologies that will help us reduce energy consumption and environmental impact, while maintaining the reliable transport services our communities depend upon.
“This project demonstrates that innovation and practicality can go hand in hand. We are proud to be pioneering the use of wind propulsion on a vessel of this type and look forward to seeing the benefits delivered in operation.”
The development is in the latest in a series of high profile installations and contracts for bound4blue’s eSAILs®. The company has now deployed eSAIL® systems on twelve ships, with a further six vessels in its order book, representing more than 50 eSAILs® in total. The autonomous, non-ATEX units ease engine loads, cut fuel consumption (delivering up to double digit savings), and reduce greenhouse gas emissions, delivering strong regulatory and financial benefits.
