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Weekly SummaryMarkets

Power: Sep30- Oct4: Markets go up on lingering heat, less supply

Wholesale power markets in Japan rose in the week to October 4, receiving upward pressures from the tight supply-demand balance created by the combination of anomaly hot air and poor capacity for electricity supply.

Based on the Rim Power Index (Day ahead 24 hours), the weekday power prices in the eastern market, including Hokkaido, Tohoku and Tokyo area, averaged out at 11.13 yen per kilowatt hour (kWh), up 1.94 yen/kWh or 21.1% from the prior week, meanwhile prices in the western, made up of Chubu, Hokuriku, Kansai, Chugoku, Shikoku and Kyushu area, at 10.30 yen/kWh, up 2.65 yen/kWh, or 34.6%. The premium of the eastern market to the western narrowed to 0.83 yen/kWh from 1.54 yen/kWh. Within the eastern, the disparity between Tokyo-Tohoku and Hokkaido shrank to 0.46 yen/kWh from 3.90 yen/kWh with Tokyo-Tohoku's weekday average of 11.10 yen/kWh versus Hokkaido's 11.56 yen/kWh which are calculated based on data of the Japan Electric Power Exchange (JEPX).

In eastern Japan, Tokyo's daily maximum temperatures during Oct 1 to 4 were estimated on a day ahead basis at 27 degrees Celsius to 31 deg C, and Osaka's highs were projected at 29 deg C to 31 deg C in western Japan, according to the Japan Meteorological Agency. The near-summer temperatures lifted electricity demand for air-conditioning apparatus. Unfortunately for buyers, many power centers were sitting idle for autumn inspections to prepare for a winter demand season. Plus, a number of photovoltaic plants fell into a slump under grey skies.

On the Japan Electric Power Exchange (JEPX), the weekday average of System Price (Day ahead 24 hours), which are computed based on the data of 9 areas, move up by 2.33 yen/kWh or 28.3% to 10.57 yen/kWh, with the average volume decreasing by 35,420 megawatt hour (MWh) or 4.1% to 826,202 MWh.

JEPX: System Price (Day Ahead 24 hour)

Weekday Price

30-Sep

1-Oct

2-Oct

3-Oct

4-Oct

 

Average

24-Hour Ave

9.35

10.53

11.17

10.52

11.30

 

10.57

Volume (MWh)

856,454

814,804

818,626

816,279

824,848

 

826,202

(unit: yen per kWh) (date: delivery day)  

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Tokyo : Electricity Team  Compiling by Electricity Team   +81-3-3552-2411Copyright © RIM Intelligence Co. ALL RIGHTS RESERVED.

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