Electricity market

Wholesale electricity market

Traded volume of electricity and share of sales
(GWh/Fiscal year)
Traded volume of electricity and share of sales (GWh/Fiscal year)
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Source:Japan Electric Power eXchange, “Trading information” (accessed in July 2017)


Average system prices of Day Ahead Market
(JPY/kWh/Fiscal year)
Average system prices of Day Ahead Market (JPY/kWh/Fiscal year)
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Note) * DA-24 means average system price during 24 hours of day ahead
** DA-DT means average system price during daytime (8:00 ~ 22:00)
*** DA-PT means average system price during peak time (11:00 ~ 16:00)
Source:Japan Electric Power eXchange, “Trading information” (accessed in July 2017)



Retail electricity market

New Electric Retailers’ share in the market of consumers connected to the high and ultra-high voltage
(Fiscal year)
New Electric Retailers’ share in the market of consumers connected to the high and ultra-high voltage (Fiscal year)
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Source: METI/ANRE“Monthly Report on Electricity Statistics”


Number of customers in low voltage
(million costumers)
Number of customers in low voltage (million costumers)
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Source: Electricity and Gas Market Surveillance Commission, “Monthly Electricity Trading Report”, (accessed in August 2017)
Note: Liberalization of electric retail market began in April 2016.


Average sales prices in FY 2016
(JPY/kWh)
Average sales prices in FY 2016 (JPY/kWh)
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Source: Electricity and Gas Market Surveillance Commission, “Monthly Electricity Trading Report”, (accessed in August 2017)