The history of the energy revolution and energy saving activities in Japan

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The purpose of this research is to present analyses of the reasons for the rapid and drastic Japanese energy revolution ; therefore the following two reasons are revealed. First, the energy saving technology, which was called heat control (netsukanri) at that time, had developed since the 1920s. Heat control was keenly exercised by industries during the 1950s and it promoted switching from domestic coal to foreign petroleum because heavy oil was more advantageous in heat control than coal. Second, Japan predicted rapid growth of energy demand and improved several ports for crude oil imports. As a result, Japan used the biggest class of tankers in the world and it could import cheaper crude oil than any other country during the 1960s.