In this paper, the authors present an innovative approach to compare the most promising innovative technologies for energy production and storage for maritime applications. The developed algorithm, which include a large database built with market and literature data, compares several possible solutions, including innovative ones, from the environmental, economic and energetic standpoints. A detailed decription of the functions implemented in the database is reported, explaining also in detail the algorithm developed to evaluate and compare the technologies. Then, the methodology is applied to two case studies to demonstrate the algorithm’s potential, the reliability of the wide range of data included in the database and the impact of the scenario on the final results. The investigated case studies are: (i) a small size passenger ship operating in urban areas (ii) a large size cruise ship. Analyzing the first case study, a focus on the impact of generation unit and fuel storage systems is developed for the most promising solutions, represented by fuel cells in comparison to standard solutions. The second case study shows that, as could be expected, the most promising solutions in this range of application is the use of MDO or LNG in Internal Combustion Engines. In order to evaluate the future potential of the different alternative fuels, a sensitivity analysis is performed to evaluate the impact of the increasing emissions' importance: methanol, LNG, and ammonia are indicated as the most futurible fuels. It is worth noting that the presented approach has a general validity, thus it can be applied to other ships' typologies; the modular structure also allows for including further emerging technologies.

在本文中，作者提出了一种创新方法来比较最有前途的海上应用能源生产和存储创新技术。开发的算法包括一个用市场和文献数据构建的大型数据库，从环境、经济和能源的角度比较了几种可能的解决方案，包括创新的解决方案。报告了对数据库中实现的功能的详细描述，还详细解释了为评估和比较技术而开发的算法。然后，将该方法应用于两个案例研究，以证明该算法的潜力、数据库中包含的广泛数据的可靠性以及场景对最终结果的影响。调查的案例研究是：(i) 在市区营运的小型客船 (ii) 大型游轮。分析第一个案例研究，重点关注发电机组和燃料存储系统的影响，以开发最有前途的解决方案，与标准解决方案相比，以燃料电池为代表。第二个案例研究表明，正如预期的那样，在该应用范围内最有前途的解决方案是在内燃机中使用 MDO 或 LNG。为了评估不同替代燃料的未来潜力，我们进行了敏感性分析以评估日益增加的排放重要性的影响：甲醇、液化天然气和氨被认为是最有前途的燃料。值得注意的是，所提出的方法具有普遍适用性，因此可以应用于其他船舶的类型；