美国能源部更新45VH2-GREET模型 允许企业填报自有甲烷损失数据评估45V资格DOE Updates 45VH2-GREET to Allow Company-Specific Methane Loss Data

2025年5月22日，美国能源部氢能与燃料电池技术办公室（HFTO）宣布更新45VH2-GREET建模工具，采用更灵活的氢供应链甲烷损失核算方法。更新后，用户可填报企业自有设施的甲烷损失数据，而不再被要求一律采用全国平均值；DOE称此举旨在降低制度性负担，使更多企业能够评估自身在45V清洁氢生产抵免下的资格。该模型已被财政部采用，专门用于评价制氢过程的排放。

与绿色氢氨醇的关系：45V抵免的碳强度结果直接决定绿氢的到厂成本，进而影响绿氨、绿色甲醇项目的原料成本与可融资性；上游天然气供应链甲烷排放核算口径的放宽，也会改变「天然气＋碳捕集」制氢路线相对于电解水制氢的竞争力，并传导至以这两类氢为原料的氨、醇产品。该公告本身未点名氨或甲醇。

英文原文摘录："The U.S. Department of Energy’s (DOE) Hydrogen and Fuel Cell Technologies Office today removed barriers for the American hydrogen industry by updating its 45VH2-GREET modeling tool. The latest version of 45VH2 GREET employs a more flexible method for calculating methane loss from hydrogen supply chains, allowing a wider range of deserving companies to access resources supporting hydrogen production."

英文原文摘录："The latest updates allow users to input company-specific methane loss data, rather than requiring the use of national averages. This change will allow companies to use data specific to their own facilities when assessing their eligibility under 45V."

英文原文摘录："The 45VH2-GREET model, which has been adopted by the U.S. Department of the Treasury, is specifically designed to evaluate hydrogen production processes."

配套原文：https://www.energy.gov/cmei/greet