The transition to a hydrogen-based mobility requires the development of an infrastructure that must be able to satisfy the hydrogen demand. In the short and medium term, the lack of the hydrogen distribution infrastructure can be overcome through the on-site hydrogen production. However, the costs of the plants for hydrogen production, storage and distribution are currently too high and, therefore, the levelized cost of hydrogen is high above all if it is produced by renewable sources. To reduce this cost and to sustain the economic profitability of the on-site hydrogen production and distribution plants, a strong policy support and investments are required. This paper is focused on the evaluation of an incentive strategy that can assure the economic sustainability of on-site hydrogen refueling stations powered by a grid-connected solar plant. The strategy is based on the economic valorization of the carbon dioxide equivalent emissions that are avoided by adopting the proposed hydrogen pathway in comparison to the gasoline one that represents the reference for the current European powertrain technologies and trends. These carbon dioxide equivalent emissions have been estimated by applying the Well-To-Wheel analysis and the Life Cycle Cost analysis has been used to estimate the economic incentive to be paid to the avoided emission by fixing the discounted pay-back period and the current hydrogen selling price. The WTW analysis results have shown that the annual avoided equivalent emissions of the hydrogen pathway are equal to 320 tons and the corresponding economic incentives are 65.72 €/tCO_2eq and 327.49 €/tCO_2eq, by considering the Discounted Pay Back Periods of 10 and 8 years, respectively. Moreover, these incentives allow to achieve the Levelized Cost of Hydrogen and the Profitability Index equal to 9.02 €/kg and 1.75 (10 years) and 7.86 €/kg and 2.12 (8 years), respectively. In conclusion, the proposed incentive strategy is a suitable option to support the on-site HRS powered by grid-connected solar plants which are a promising solution for a sustainable mobility.

向以氢为基础的机动性的过渡需要开发必须能够满足氢需求的基础设施。在中短期内，可以通过现场制氢来克服氢气配送基础设施的不足。然而，目前氢气生产、储存和分配的工厂成本太高，因此，如果氢气由可再生能源生产，则氢气的平均成本首先很高。为了降低这一成本并维持现场制氢和分配工厂的经济盈利能力，需要强有力的政策支持和投资。本文的重点是评估一种激励策略，该策略可以确保由并网太阳能发电厂供电的现场加氢站的经济可持续性。该战略基于二氧化碳当量排放的经济价值化，通过采用提议的氢气途径与代表当前欧洲动力总成技术和趋势参考的汽油途径相比，可避免二氧化碳当量排放。这些二氧化碳当量排放量是通过应用 Well-To-Wheel 分析估算的，生命周期成本分析已用于估算通过固定贴现回收期和当前氢气来避免排放的经济激励售价。WTW 分析结果表明，氢气途径每年可避免的等效排放量等于 320 吨，相应的经济激励为 65.72 欧元/吨二氧化碳 这些二氧化碳当量排放量是通过应用 Well-To-Wheel 分析估算的，生命周期成本分析已用于估算通过固定贴现回收期和当前氢气来避免排放的经济激励售价。WTW 分析结果表明，氢气途径每年可避免的等效排放量等于 320 吨，相应的经济激励为 65.72 欧元/吨二氧化碳 这些二氧化碳当量排放量是通过应用 Well-To-Wheel 分析估算的，生命周期成本分析已用于估算通过固定贴现回收期和当前氢气来避免排放的经济激励售价。WTW 分析结果表明，氢气途径每年可避免的等效排放量等于 320 吨，相应的经济激励为 65.72 欧元/吨二氧化碳_2eq和 327.49 €/tCO _2eq，分别考虑 10 年和 8 年的贴现_回收期。此外，这些激励措施允许实现氢的平准化成本和盈利指数分别等于 9.02 欧元/公斤和 1.75（10 年）和 7.86 欧元/公斤和 2.12（8 年）。总之，提议的激励策略是支持由并网太阳能发电厂供电的现场 HRS 的合适选择，这是一种有前途的可持续移动解决方案。