In energy resources, hydrogen: the energy obtained from natural resources that can be replenished over an indefinite period of time. This includes, among others, biomass, geothermal, solar, hydro, ocean, wind, and other emerging RE technologies [Section 4(y), DOE Department Circular No. DC2024-01-0001, Providing a National Policy and General Framework, Roadmap, and Guidelines for the Hydrogen in the Energy Sector]
