Global electrolyzer capacity additions for hydrogen production 2010-2021, by use

In 2021, the total capacity of electrolyzers for hydrogen production commisioned that year amounted to 286.45 megawatts electrical (MWe), roughly a four-fold increase in comparison to the previous year. Vehicle fueling has been the main hydrogen application since 2019 - with an electrolyzer capacity of 146 MWe in 2021, up from less than one MWe in 2010.

在2021年，当年投入使用的电解槽总产能达到286.45兆瓦电（MWe），与上一年相比，增长了约四倍。自2019年起，车辆加氢已成为氢能应用的主要领域——2021年的电解槽产能为146 MWe，较2010年的不足1 MWe有所提升。