The fifth edition methodology of Mapping Zero-Emission Pilots and Demonstration Projects report details the approach in assessing various energy sources for the advancement of zero-emission technologies in the shipping industry. The report focuses on defining what constitutes zero emission pathways, including the consideration of fuels like grey ammonia and methanol that have potential for transitioning to green alternatives in the future. The methodology categorizes projects based on energy sources and Technology Readiness Levels (TRL), with a keen focus on methanol and hydrogen as prominent energy sources. It outlines that green methanol is already being used as a marine fuel, while hydrogen is highlighted for its commercial availability and diverse production pathways. In the realm of ship technology, the report discusses the development of direct methanol fuel cells (DMFC) and hydrogen propulsion systems, emphasizing the need for further advancements in technology implementation. Furthermore, it addresses fuel production methods like power-to-methanol projects and electrolysis pathways for hydrogen production, underscoring the importance of industrial scalability. Bunkering and infrastructure considerations for methanol and hydrogen are also discussed, noting the existing frameworks and technological developments that are still underway. Additionally, the report touches on the exclusion of 'ammonia ready' classification in this edition, highlighting the focus on green ammonia production and its utilization as a fuel. Overall, the sentiment of the report is positive, acknowledging the progress in hydrogen and methanol technologies while signaling the need for continued development and implementation to achieve zero-emission goals in the maritime sector.