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
20 May 2026
Posidonia 2026 Wind Route
There is a 'Perfect Storm' forecast for Posidonia 2026: Wind Propulsion, International Shipping, and the Energy Transition The global maritime industry’s accelerating return to wind-powered...
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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
1020
Number of large ships with wind propulsion technology installed
5.709.3320
Tonnage of wind-powered cargo carrying capacity
203.7610
Tons of CO2 saved
Upcoming Events
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
7th Decarbonizing Shipping Forum
Event Date: 7-10 April 2026
