Powering global seaborne trade with abundant direct wind energy.
The International Windship Association (IWSA) is the trade association for wind power in shipping.
Find out more about the AssociationLatest News
26 June 2026
Wallenius Wilhelmsen Lines car carrier gets first Oceanbird wing sail installation
Oceanbird has installed it's first 40m wing sail system on the 237m, 71,000 dwt MV Tirranna, a Wallenius Wilhelmsen Lines car carrier The system will...
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Why Wind?
Wind Propulsion Technology
is Mature and Proven
- Propulsion not Energy Efficiency
- Wind-Assist & Primary Mover
- Retrofits = 5-20% Propulsive Energy
- Optimised Wind-Assist = up to 30%
- Primary Wind New Builds = 50%++
- Retractable, Automated, Certified
The Economics of
Wind Make Sense
- Energy Cost Fixed at Zero
- Technology Available Today
- Applicable Across the Fleet
- Robust Pipeline of Tech & Projects
- Operational Changes Boost Wind
- Predictable: Weather Routing/Forecast
It’s a Renewable
Energy Source
- Abundant Energy Supply
- Available Worldwide Today Zero Emissions Energy
- Delivered at No Cost
- Delivered Directly to Point-of-Use
- No New Infrastructure Required
1060
Number of large ships with wind propulsion technology installed
5.881.1410
Tonnage of wind-powered cargo carrying capacity
226.7650
Tons of CO2 saved
Upcoming Events
Event Date: 15/10/2026
Green Shiptech China Congress (GSCC) 2026
Event Date: 01/06/2026
Wind Propulsion @ Posidonia 2026
Event Date: 04/06/2026
Confidence Is Not Intelligence Why Shipping Still Destroys Value Despite...
Event Date: 22 - 23 June, 2026
