The M/V Afros has successfully completed its eight-year survey with Lloyd’s Register, providing definitive proof that Anemoi’s Rotor Sails deliver long-term structural durability and significant fuel savings in real-world commercial operations. By maintaining 95% availability across 32 different charters, the vessel demonstrates that wind-assisted propulsion is no longer a pilot-stage experiment but a reliable, “clean bill of health” solution for global decarbonization.
Jiangsu, China | May 13, 2026 – In a maritime industry often cautious of “novelty” technologies, the M/V Afros has just provided the definitive counter-argument. The world’s first bulk carrier equipped with Rotor Sails has successfully completed its second intermediate dry dock survey, proving that wind-assisted propulsion is no longer an experiment, but a durable, long-term asset for the global fleet.
The survey, conducted by Lloyd’s Register at the Jiangsu Watts Energy & Engineering yard on April 13, 2026, confirmed that the vessel’s four Rotor Sails remain structurally sound and fully operational after more than eight years of continuous service. For Anemoi Marine Technologies, the original equipment manufacturer, the result is a validation of engineering excellence and a clear signal to shipowners that wind power is ready for the long haul.
Reliability Beyond the Pilot Phase
Since its installation in January 2018, the 64,000 DWT geared Ultramax bulk carrier, owned by Blue Planet Shipping, has served as a floating laboratory for the decarbonization era. While many wind-propulsion systems are currently in their first or second year of operation, the Afros has weathered nearly a decade of salt spray, port maneuvers, and heavy-duty commercial trading.
The system has maintained an astonishing 95% operational availability across 154 voyages. Perhaps more importantly for the commercial sector, the vessel has completed roughly 200 port calls and served 32 different charterers, proving that the presence of Rotor Sails does not complicate the vessel’s ability to secure work on the spot market.
“The successful completion of Afros’ second intermediate survey is a landmark moment not only for Anemoi, but for the wider wind propulsion sector,” said Nick Contopoulos, Co-Founder and CCO of Anemoi. “Independent confirmation demonstrates that Anemoi Rotor Sails are not simply an innovative decarbonization concept; they are a durable, practical, and commercially deployable technology.”
The Data: Small Sails, Big Impact
The performance metrics released following the survey offer a masterclass in efficiency. Despite being equipped with Anemoi’s “first-generation” sails, measuring a modest 2 meters in diameter and 16 meters in height, the Afros achieved:
- 1,340 tonnes of fuel savings.
- 4,980 tonnes of well-to-wake CO₂ reductions.
- A 4.2% reduction in the vessel’s IMO Energy Efficiency Existing Ship Index (EEXI) rating.
Anemoi notes that these results scale linearly. When translated to the 5-meter by 35-meter sails used in today’s installations, the data equates to 1.33 tonnes of fuel saved per sail, per operating day. This correlation gives shipowners a high degree of certainty that modern, larger systems will deliver on their projected ROI.
Key Performance Indicators (2018–2026)
| Metric | Performance Data |
| Operational Availability | > 95% |
| Total Fuel Saved | 1,340 Tonnes |
| CO₂ Reductions (WTW) | 4,980 Tonnes |
| Charterers Served | 32 |
| EEXI Improvement | 4.2% |
Operational Versatility: The Rail System Legacy
The Afros was the pioneer of Anemoi’s longitudinal rail deployment system. This patented technology allows the sails to be moved along the deck, ensuring they do not obstruct cranes during cargo handling, a critical requirement for geared bulkers. This system has since become a cornerstone of Anemoi’s current offerings, proving that the original design was not just innovative, but essential for commercial integration.
Nikos Apodiakos, Managing Director of Blue Planet Shipping, highlighted the vessel’s seamless integration into the global trade “Since it entered service, Afros has served 32 different charterers, which shows that its Rotor Sail system is welcomed by commercial customers and has been no hindrance to operating on the spot market. We are naturally pleased with the clean bill of health… and positive about earnings and emissions saving potential for the remainder of the vessel’s active life.”
The Class Perspective: Eliminating Uncertainty
For the wider industry, the stamp of approval from Lloyd’s Register is the most vital takeaway. As shipping faces tightening regulations via CII, EU ETS, and FuelEU Maritime, the industry is searching for technologies that don’t just work on paper but survive the rigors of the sea.
John Prosilias, Lead Client Relationship Manager at Lloyd’s Register, noted the significance of the findings “One of the key issues with any maturing technology is its long-term durability and reliability in real-world conditions. We are therefore very satisfied to report no issues… which represents an important example of successful long-term operation of wind-assisted propulsion systems.”
The Bottom Line
The M/V Afros is no longer just a “first.” With eight years of independently verified history, it is now the maritime industry’s most potent evidence that wind-assisted propulsion (WAPS) has moved past the pilot stage. For shipowners looking to future-proof their fleets against carbon taxes and regulatory shifts, the message from the Afros is clear: the wind is a reliable partner, and the technology is built to last.
About Anemoi Marine Technologies
Anemoi Marine Technologies is a global leader in Rotor Sail technology, offering a proven wind-propulsion solution that harnesses the Magnus effect to drive significant maritime decarbonization. With over 15 years of R&D, their patented systems, available for both newbuilds and retrofits, reduce fuel consumption and emissions CO2, SOx, and NOx by delivering higher thrust per square meter than traditional sails.
Recognized for their innovative longitudinal rail system, Anemoi ensures that wind assistance never compromises cargo operations, even on geared vessels. Their technology is fully approved by major classification societies and serves as a strategic tool for shipowners to maintain compliance with tightening global regulations, including EEDI, EEXI, CII, EU ETS, and FuelEU Maritime.
Source: Anemoi Marine Technologies