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  5. Results Compiled for the Electricity Supply and Demand for the Winter of FY2018 as well as Outlook and Measures for Electricity Supply and Demand for the Summer of FY2019

Results Compiled for the Electricity Supply and Demand for the Winter of FY2018 as well as Outlook and Measures for Electricity Supply and Demand for the Summer of FY2019

April 26, 2019

Agency for Natural Resources and Energy

On April 26, 2019, the Electricity and Gas Basic Policy Subcommittee under the Electricity and Gas Industry Committee of the Advisory Committee for Natural Resources and Energy (hereinafter referred to as the “subcommittee”) held a meeting and compiled data on the results of the electricity supply and demand for the winter of FY2018 as well as data on the outlook and measures for electricity supply and demand for the summer of FY2019 into a report.

As for the electricity supply and demand for the summer of FY2019, a reserve margin of 3%, which is the minimum ratio required for stable supply of electricity across Japan, is expected to be secured. However, the Ministry of Economy, Trade and Industry (METI) requests the public for cooperation in energy-saving efforts and energy conservation at a reasonable pace as usual in past years.

1. Background and purpose

Aiming to provide full-fledged electricity supply-demand measures to address Japan’s situations surrounding electricity after the Great East Japan Earthquake, Japan has been studying supply and demand of electricity in summer and winter, the seasons when electricity demand increases across Japan.

On April 26, 2019, the subcommittee held a meeting and compiled data on the results of the electricity supply and demand for the winter of FY2018 as well as data on the outlook and measures for electricity supply and demand for the summer of FY2019 into a report.

2. Key points of the results of the electricity supply and demand for the winter of FY2018

  1. As the subcommittee has requested customers in the Hokkaido service area for cooperation in energy conservation at a reasonable pace, supply capacity did not fall below the reserve margin of 3%, the minimum ratio required for stable supply of electricity across Japan. This is backed by the buildup of electricity supply from Ishikariwan Shinko Power Plant Unit 1, a power plant fueled by liquefied natural gas (LNG) and having output performance of 569,400 kW, through starting test operation of the plant ahead of schedule, and other efforts. In particular, on February 8, 2019, Hokkaido marked a record-low temperature and the demand for electricity for heaters and other apparatuses across the region increased. However, no trouble was seen in the stability of supply.
  2. As for the Chubu service area, on January 10, 2019, the reserve margin decreased due to an increase in demand caused by changes in weather conditions and to a decrease in output of photovoltaic power generation. However, the supply capacity did not fall below the reserve margin of 3%, the minimum ratio required for stable supply of electricity across Japan, thanks to the electricity interchange from other service areas.
  3. Concerning the results of the electricity supply and demand for the winter of FY2018 in other service areas, the reserve margin of 3%, the minimum ratio required for stable supply of electricity across Japan, was secured.

3. Key points of the outlook and measures for electricity supply and demand for the summer of FY2019

  1. Concerning the outlook and measures for electricity supply and demand for the summer of FY2019, the reserve margin of 3%, the minimum ratio required for stable supply of electricity across Japan, is expected to be secured.
  2. Based on this expectation, the subcommittee decided to not request public cooperation in energy conservation this summer. However, METI still requests that the public cooperate in energy-saving efforts and energy conservation at a reasonable pace as usual in past years.

Division in Charge

Office for Electricity Supply Policy, Electricity Infrastructure Division, Electricity and Gas Industry Department, Agency for Natural Resources and Energy