ISWG-GHG 20-2-17 – Consistent treatment of wind propulsion in the IMO Net-Zero Framework (IWSA) (2)
Submitted by IWSA (05 September 2025)

DEVELOPMENT OF NEW AND/OR REVISION OF EXISTING GUIDELINES, PROVISIONS, GUIDANCE AND OTHER DOCUMENTS, AS APPROPRIATE, FOR SUPPORTING THE UNIFORM AND EFFECTIVE IMPLEMENTATION OF THE IMO NET-ZERO FRAMEWORK

Executive summary:
This document aims to help clarify the key elements of the IMO Net-Zero Framework as it pertains to direct wind propulsion energy in an effort to align those provisions with the core technology and energy pathway neutrality principles that are at the heart of IMO deliberations. To ensure consistent treatment of wind propulsion, the substantial losses sustained through the use of fuel oil/alternative fuel energy pathways should be considered in the attained GFI calculations so as to avoid overvaluing these energy sources within the formula and subsequently undervaluing the wind component. An approach to address this issue has been outlined in document MEPC 82/7/9 (ISWA). This submission also brings forward a series of pertinent issues relating to the same level-playing field principle to be considered when assessing and applying criteria for the issuance of IMO Net-Zero Fund reward allocations and the inclusive and balanced treatment of all energy sources based on their direct and indirect decarbonisation impact, co-benefits and other merits.