Prioritizing the weights of hydrogen energy technologies in the sector of the hydrogen economy by using a fuzzy AHP approach

KIER, government supported research institute, establishes a long-term strategic energy technology development roadmap essentially with selection and specialization of energy technology R&D and for Korea's national security. In this paper, we establish a strategic hydrogen energy technology roadmap taking economic impact, commercial potential, inner capacity, and technical spin-off into account. We suggest a methodology to prioritize the relative weights of hydrogen energy technologies of hydrogen energy technology roadmap (ETRM) as we allocate R&D budget effectively using a fuzzy analytic hierarchy process (AHP), which reflects the vagueness of human thoughts instead of crisp numbers efficiently. In the sector of the hydrogen ETRM which is composed of 6 hydrogen energy technologies, PEMFC technology is the most preferred and technology (0.29), followed by DEFC tech (0.28), SOFC tech (0.24), Hydrogen separation & storage tech (0.10), and Hydrogen production tech (0.09).