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
17 April 2026
New study details fleet-wide impacts of retrofitting existing ships with wind propulsion technology
The Tyndall Centre for Climate Change Research has conducted a fleet wide analysis of the potential reduction in fuel use from wind propulsion for the...
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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
850
Number of large ships with wind propulsion technology installed
5.143.9260
Tonnage of wind-powered cargo carrying capacity
172.6500
Tons of CO2 saved
Upcoming Events
Event Date: 22 - 23 June, 2026
7th Decarbonizing Shipping Forum
Event Date: 7-10 April 2026
Blue Week – Natural Propulsion Seminar 2026
Event Date: 17 September 2025
Wind Propulsion Seminar – LISW 2025
Event Date: 15 September 2025
