Abstract
In this study, possible future hydrogen society will be assessed from life cycle perspectives. First, environmental impacts caused from hydrogen production technologies together with expected production capacity is compiled. Next, emissions from currently used technologies that are to be replaced by hydrogen-driven devices are assessed. Then, the two results are matched applying various approaches to deduce reduction potentials. A case study on Taiwanese hydrogen society is shown by using the methodology and database we develop. The considered production pathways include wind, solar, and biomass (kitchen waste and rice straw) available in Taiwan. For utilization, replacement of fossil fuels in transportation vehicles of Taiwan is considered.
