According to the Asahi Shimbun, JR (Japan railway) Tokai is trying to improve the hydrogen engine, which was originally used for automobiles, and to use it for railroads in order to achieve carbon neutrality by 2050. If realized, it will be the first of its kind in the world. Why are they going down this difficult road when there are other environmental technologies that are being developed ahead of them?
In the development of environmental technologies using hydrogen, fuel cells are leading the way. Toyota Motor Corporation has installed them in its "Mirai" passenger car, and they are already on the market. In the railroad industry, JR East is also testing a train that uses batteries in combination. JR Tokai, however, has not concentrated on fuel cells, but has also branched out into hydrogen engines. The company wants to have a variety of options as a possibility in case fuel cell power increases come to a standstill. JR Tokai is also researching the use of vehicles that run solely on battery electricity and the use of biofuels, which are considered to emit virtually no CO2. The current situation, in which the company continues to expand its options, illustrates the difficulty of decarbonizing railroads. Hidemasa Tanaka, team manager in charge of the project, also says, "The cost is still very high for all of them, and we cannot make a decision yet”. https://digital.asahi.com/articles/ASS434DWBS43ULFA002M.html
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