However, we often require less detailed, but as accurately as possible, the load shape. For instance, we may want to know the variation of daily peak loads of the coming summer. In other words, only 90 data are required. Such a seasonal load curve is shown in Figure, we have only focused on the peak values.
If for planning purposes, we are going to predict the load variations for the next several years (say 10 years or more), we may have to predict, the summer and the winter peaks, of the coming years. It means that for a 10-year prediction, only 20 data may be required.
