Abstract
Hydrogen technologies are promising candidates of new energy technologies for electric power load smoothing. However, regardless of long-term public investment, hydrogen economy has not been realized. In Japan, the National Research and Development Institute of New Energy and Industrial Technology Development Organization (NEDO), a public research-funding agency, has invested more than 200 billion yen in the technical development of hydrogen-related technologies. However, hydrogen technologies such as fuel cell vehicles (FCVs) have not been disseminated yet. Continuous and strategic research and development (R&D) are needed, but there is a lack of expertise in this field. In this study, the transition of the budgetary allocations by NEDO were analyzed by classifying NEDO projects along the hydrogen supply chain and research stage. We found a different R&D focus in different periods. From 2004 to 2007, empirical research on fuel cells increased with the majority of research focusing on standardization. From 2008 to 2011, investment in basic research of fuel cells increased again, the research for verification of fuel cells continued, and no allocation for research on hydrogen production was confirmed. Thereafter, the investment trend did not change until around 2013, when practical application of household fuel cells (ENE-FARM) started selling in 2009, in terms of hydrogen supply chain. Hydrogen economy requires a different hydrogen supply infrastructure, that is, an existing infrastructure of city gas for ENE-FARM and a dedicated infrastructure for FCVs (e.g., hydrogen stations). We discussed the possibility that structural inertia could prevent the transition to investing more in hydrogen infrastructure from hydrogen utilization technology. This work has significant implications for designing national research projects to realize hydrogen economy.
Highlights
The adoption of renewable energy, such as solar and wind power, has progressed rapidly in recent years; for example, the system cost of solar power decreased while adoption increased rapidly—approximately tenfold from 2010 to 2016 [1]
We investigated the website of the Council on Competitiveness-Nippon (COCN) [37]
The transition of budget allocations for hydrogen-related technologies was analyzed by classifying NEDO projects along the two axes of the hydrogen supply chain and the research stage
Summary
The adoption of renewable energy, such as solar and wind power, has progressed rapidly in recent years; for example, the system cost of solar power decreased while adoption increased rapidly—approximately tenfold from 2010 to 2016 [1]. To cope with the volume growth of renewable energy, it is vital to introduce and develop technologies for electric power load smoothing. These technologies typically focus on energy storage and/or energy conversion. Hydrogen-related technologies such as hydrogen production, storage, transport, and fuel cells are one of the clusters of technologies for electric power load smoothing. Hydrogen can be produced from the electricity surplus of renewable energy production as CO2-free energy sources and used later for fuel cell operation [2,3,4]. Hydrogen is one of the promising candidates for smoothing the electric power load [5]
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