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
14 September 2026
Call for Abstracts – 6th Wind Propulsion Conference 2027
We are delighted to release this Call for Abstracts for the 6th Wind Propulsion Conference 2027, which will be hosted by Royal Institution of Naval...
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26 August 2026
Wind Propulsion Route Map – SMM 2026
25 August 2026
Retrofit Wingsail installation on Maria Topic Bulk Carrier
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
1070
Number of large ships with wind propulsion technology installed
5.884.9910
Tonnage of wind-powered cargo carrying capacity
226.7650
Tons of CO2 saved
Upcoming Events
Event Date: 01/10/2026
IWSA Wind Propulsion Seminar – Singapore
Event Date: 13/10/2026
IWSA Wind Propulsion Seminar – Australia
Event Date: 31/09/2026 - 04/09/2026
Wind Propulsion Events @ SMM 2026
Event Date: 02/09/2026
