31 January 2025
This document contains in the annex the "proposed assessment methodology tiers to measure wind propulsion in the attained GFI" as referred to in document MEPC 83/7/33 (IWSA).
This document provides a set of assessment methodologies for wind propulsion installation energy contributions so that wind energy can be incorporated into the mid-term measures developed to implement the 2023 IMO Strategy on reduction of GHG emissions from ships, with reference to the technical measures currently being prepared. This set of tiered methodologies support the proposed amended formula outlined in document MEPC 82/7/9 (IWSA) which in turn is based on the work presented in document ISWG-GHG 16/2/7 (Austria et al.). This proposed tiered approach to the application of these methodologies enables a level of flexibility without compromising accuracy enabling iterative improvements and optimization of these approaches as further knowledge and data feedback into the system framework. The Annex to this paper is published separately as MEPC 83/INF.33 Proposed assessment methodology tiers to measure wind propulsion in the GFI
This document sets out how wind energy can be incorporated into the mid-term measures developed to implement the 2023 IMO Strategy on Reduction of GHG Emissions from Ships, with reference to the technical measures currently being prepared. It further proposes an amended formula based on the work presented in document ISWG-GHG 16/2/7 (Austria et al.), which is to date the most elaborated upon formula that could be used to calculate the attained Greenhouse Gas Fuel Intensity (GFI), and which provides a concrete illustration of the technical proposal so that wind energy is accounted for equitably in the greenhouse gas emissions intensity balance for the ship. Submitted to International Maritime Organisation (IMO) by IWSA
12 January 2024
This document presents the IWSA wind propulsion white paper compiled in the light of the recently adopted 2023 IMO strategy on reduction of GHG emissions from ships and the work underway on mid-term measures. The white paper delivers a detailed baseline assessment of wind propulsion technology (WPT) systems and outlines pathways underway for the dissemination and scaling of this technology segment. The content builds on the summary document MEPC 79/INF.21 (Comoros et al.) giving additional technology and policy context and a detailed macro and micro economic analysis of the benefits of following a wind-hybrid decarbonization pathway. These are supplemented by an updated market analysis and case studies covering numerous wind propulsion solutions. The report also delivers results from an IWSA initiated survey of industry stakeholder perspectives relating to wind propulsion uptake along with a detailed summary of barriers and drivers in the industry which help to inform the regulatory gap analysis and recommendations for further action. Submitted by Comoros, France, Solomon Islands and IWSA
