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Commentary on Electricity Forecast

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What is Maximum Supply Capacity?
Supply capacity and generation capacity



*This view is a sample image of electricity consumption.
 
Maximum Supply Capacity

Maximum Supply Capacity is the maximum generation output available at the day,
which can be obtained by deducting the capacity of outage plants for maintenance and the decreased capacity caused by decreased flow rate of rivers from the total generation capacity.

As flow rate of rivers and available generators vary every day,
Maximum Supply Capacity accordingly change every day.

 

 
* Forecast for the next day is provided every day at around 6:00 pm.

* Data is updated at 8:30 am on weekdays, posted at around 9:00 am.
 



Relations between demand and daily maximum supply capacity of electricity

Power source mix in a certain day (image)

Pumped storage that is active at peak time



  How a pumped storage works ?
(from FEPC's website)

Conceptual Figure for Supply Capacity of Pumped Storage Power Station in This Summer