In 2021, vehicle fueling was the largest intended use of hydrogen, accounting for over half of the hydrogen electrolyzer production capacity worldwide. Meanwhile, industrial applications held a percent share of the global electrolyzer's capacity for hydrogen production that year.
An electrolyzer is a device that uses electricity to break water into hydrogen and oxygen, thus producing hydrogen gas that can be stored.
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PTR. (November 1, 2022). Distribution of hydrogen electrolyzer production capacity commissioned worldwide in 2021, by intended use of hydrogen [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 20, 2026, from /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/
PTR. "Distribution of hydrogen electrolyzer production capacity commissioned worldwide in 2021, by intended use of hydrogen." Chart. November 1, 2022. ÌÇÐÄÆƽâ°æ. Accessed July 20, 2026. /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/
PTR. (2022). Distribution of hydrogen electrolyzer production capacity commissioned worldwide in 2021, by intended use of hydrogen. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 20, 2026. /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/
PTR. "Distribution of Hydrogen Electrolyzer Production Capacity Commissioned Worldwide in 2021, by Intended Use of Hydrogen." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 1 Nov 2022, /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/
PTR, Distribution of hydrogen electrolyzer production capacity commissioned worldwide in 2021, by intended use of hydrogen ÌÇÐÄÆƽâ°æ, /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/ (last visited July 20, 2026)
Distribution of hydrogen electrolyzer production capacity commissioned worldwide in 2021, by intended use of hydrogen [Graph], PTR, November 1, 2022. [Online]. Available: /statistics/1360340/global-distribution-hydrogen-electrolyzer-production-capacity-by-use/
