Published on July 15, 2019.
Through the planned restart of research on the next-generation high-temperature gas-cooled reactor, statements by Mitsubishi Heavy Industries executives, and views from nuclear-technology officials, this article discusses the importance of maintaining Japan’s nuclear technology and international competitiveness. It warns that while Russia, China, and India are advancing next-generation reactor development, Japan risks losing its technological advantage if it remains idle.

July 15, 2019.
A Mitsubishi Heavy Industries executive explains the significance, saying, “Next-generation reactor development in Japan is in an uncertain state. We need to build up our strength for the future.”
The following is a continuation of the previous chapter.
The government also plans to restart, as early as next fiscal year, the research reactor for the next-generation “high-temperature gas-cooled reactor,” which had been stalled since the Great East Japan Earthquake, and to put research and development into full swing.
A Mitsubishi Heavy Industries executive explains the significance, saying, “Next-generation reactor development in Japan is in an uncertain state. We need to build up our strength for the future.”
SagaYama Yutaka, special advisor of the same organization, emphasized, “For us as well, this will lead to the maintenance of technology.”
However, regarding next-generation reactors, Russia, China, India, and others are conducting research and development toward practical application.
According to materials from the Ministry of Economy, Trade and Industry, Russia plans to begin operation of a commercial fast reactor in 2025, and China plans to introduce a commercial reactor around 2030.
While Japan sits idly by in the development of next-generation reactors, there is also the danger that its technological advantage will be lost.
“A break of even a few years could be fatal.”
Nuclear researchers say this in unison.
Keeping alive the flame of technological development aimed at achieving both stable energy security and safety is indispensable for maintaining Japan’s international competitiveness.
A senior official of the Ministry of Economy, Trade and Industry emphasized the significance that next-generation reactor development has for Japan’s energy policy.
“For Japan, keeping as many options as possible is indispensable for the future.”