; (5) to examine the environmental impacts of hydrogen combustion in hydrogen-fueled gas turbines as pure hydrogen or at different ratios if used in blended fuel; and (6) to identify and evaluate considerations for transport and storage of hydrogen and hydrogen carriers for use at industrial facilities. (b) Requirements In conducting the study under subsection (a), the Secretary of Energy and the Secretary of Commerce shall— (1) take into account lessons learned from demonstration projects in other industries and projects in other countries; and (2) evaluate the applicability of the lessons described in paragraph (1) to the use of hydrogen in industrial applications.