The Posidonia trade show in Greece this week has showcased a lineup of innovative designs focusing on alternative power sources like ammonia and hydrogen, aiming to address decarbonization challenges in the shipping industry. Key attention and excitement were drawn towards designs advancing approaches to ammonia and hydrogen, reflecting the industry's shift towards cleaner energy solutions. Samsung Heavy Industries presented a design for an ammonia fuel cell-powered very large ammonia carrier, incorporating technology from Amogy to crack ammonia into hydrogen and nitrogen for electric power generation. Other companies like HD Hyundai Heavy Industries, Capital Gas, and Guangzhou Shipyard International also presented concepts for ammonia-fueled ships and carriers, each highlighting technological advancements and collaborations with classification societies like ABS, KR, and Lloyd's Register. The industry is not only focusing on ammonia but also exploring opportunities in transporting liquified CO2, with Capital Gas working with Hyundai to expand carrier capacity. Overall, the showcased projects at the trade show exemplify a commitment to innovation and sustainability in the shipping sector.