- Terntank has placed a repeat order for wind-assisted VentoFoil systems from Econowind, expanding deployment to five hybrid tankers.
- The methanol-ready vessels integrate wind propulsion, battery systems, and dual-fuel engines under the K-Sail concept.
- The collaboration between Econowind, Kongsberg, and Terntank enables real-time energy optimization and supports IMO 2050 climate targets.
Econowind has secured a follow-up contract from Terntank to install eight VentoFoil units on two more hybrid methanol-ready tankers. This builds on the initial May 2023 order for three newbuilds, bringing the total deployment to five vessels and 20 VentoFoils—each vessel equipped with four 16-meter retractable wings, according to Marine Link.
Advanced Hybrid Vessels with K-Sail Concept
The first in the series, Tern Vik, was delivered in April 2025 by China Merchants Jinling Shipyard (Yangzhou). The ships integrate Kongsberg’s energy and propulsion management system, enabling wind power to take priority when conditions are favorable. The vessels also feature battery packs and dual-fuel engines capable of operating on methanol or diesel, making them aligned with IMO 2050 zero-emission objectives.
Performance-Driven Decision
The additional order follows strong operational results from earlier installations, demonstrating measurable fuel savings and emission reductions through Wind-Assisted Ship Propulsion. VentoFoils are foldable for efficient port handling, lightweight for stability, and ATEX-certified to meet tanker safety regulations.
Collaborative Engineering and Integration
Econowind’s close collaboration with Terntank and Kongsberg ensures seamless system integration, with dynamic energy source optimization. The hybrid energy setup allows wind, batteries, and fuel engines to work in real time to maximize efficiency and minimize emissions.
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Source: MarineLink
