The major earthquake and tsunami that occurred in Tohoku, Japan, in March last year completely changed the concept of energy consumption of most Japanese people, and also had a profound impact on household energy services across Japan. Consumers are installing energy-saving devices in their homes, such as solar generators, fully electrified home equipment and light-emitting diodes (LEDs). Home power supply in Japan is provided by electric power companies or power generation devices installed in homes, such as fuel cells that generate electricity from gas or organic fuels. From time to time, power companies promote the concept of full electrification to consumers, that is, the entire use of electricity as energy in the residence, including lighting, cooking, bathing, etc., are all provided by electricity. Gas energy companies have introduced other options to consumers, encouraging consumers to install their own power generation equipment in their homes, such as the gas-powered indoor generator Ene-Farm. Before the major earthquake, more than 550,000 Japanese households had installed fully electrified home systems in 2010, and only 7,400 households were equipped with Ene-Farm systems. Currently, Japan's energy supply is in short supply, and consumers are aware that there are real risks in relying on power companies to supply electricity. Therefore, other energy supply options such as home solar generators, Ene-Farm and home power storage systems are highly favored by consumers. In 2010, a total of 7,400 Japanese households installed Ene-Farm systems. By the end of this year, the number of households with this system installed will have doubled, and it is expected to increase to 600,000 households by 2020. The Japanese government vigorously promotes consumer safety
