Map of electrolyzer locations in the United States. Capacities range from 120 kW to 120,000 kW.

The map shows polymer electrolyte membrane (PEM) electrolyzers of 120 kW and above that are currently installed or under construction across the United States as of June 2021. Source: Arjona et al., DOE Hydrogen Program Record 20009, June 2021

To report a planned or installed PEM electrolyzer with a capacity of 0.5 MW or greater in your state, please contact