Japan: electricity rates homes per kilowatt hour

In the fiscal year 2021, the electricity costs for homes amounted to 28.09 Japanese yen per kilowatt hour. The electricity costs increased multiple times since fiscal year 2012, when the figure stood at 23.44 yen per kilowatt hours.

 Competition in the electricity market remains limited

The competition in the Japanese electricity market remains limited as it continues to be dominated by ten regional electric utilities. Retailers of low voltage electricity mainly sell their electricity locally to homes or small shops. Tokyo Electric Power Co., Inc., also known as TEPCO, continued to rank as the largest electric power company in Japan in terms of total assets. The electric company is known for the nuclear accident at its Fukushima Daiichi Nuclear Power Plant in 2011.

 Causes for rising electricity costs

After the nuclear disaster, nuclear energy was replaced by fossil fuels. Since Japan lacks domestic reserves of fossil fuels, it heavily depends on imports. Consequently, the self-sufficiency rate of primary energy decreased shortly after the disaster, causing electricity costs to rise. Additionally, in recent years, a short supply of liquefied natural gas (LNG) reinforced the price increase.

Electricity costs for homes per kilowatt hour in Japan from fiscal year 2012 to 2021 (in Japanese yen)

Characteristic	Costs in Japanese yen per kilowatt hour
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Release date

March 2023

More information

Region

Japan

Survey time period

fiscal years 2012 to 2021; the Japanese fiscal year starts on April 1 of the stated year and ends on March 31 of the following year

Supplementary notes

Apart from the mentioned sources, the data is based on the financial materials of each electric power company.

100 Japanese yen equal 0.73 U.S. dollars or 0.69 euros as of March 2023.

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