to reduce the cost of hydrogen produced using electrolyzers to less than $2 per kilogram of hydrogen by 2026; and

any other goals the Secretary determines are appropriate.

to demonstrate technologies that produce clean hydrogen using electrolyzers; and

to validate information on the cost, efficiency, durability, and feasibility of commercial deployment of the technologies described in paragraph (1).

low-temperature electrolyzers, including liquid-alkaline electrolyzers, membrane-based electrolyzers, and other advanced electrolyzers, capable of converting intermittent sources of electric power to clean hydrogen with enhanced efficiency and durability;

high-temperature electrolyzers that combine electricity and heat to improve the efficiency of clean hydrogen production;

advanced reversible fuel cells that combine the functionality of an electrolyzer and a fuel cell;

modular electrolyzers for distributed energy systems and the bulk-power system (as defined in section 824o(a) of title 16);

low-cost membranes or electrolytes and separation materials that are durable in the presence of impurities or seawater;

improved component design and material integration, including with respect to electrodes, porous transport layers and bipolar plates, and balance-of-system components, to allow for scale-up and domestic manufacturing of electrolyzers at a high volume;

clean hydrogen storage technologies;

integrated systems that combine hydrogen production with renewable power or nuclear power generation technologies, including hybrid systems with hydrogen storage.