The Load Energy curve

This curve is derived from the daily load curve At each time 

interval, the area under the curve is calculated from the zero

time interval until the present time interval For example, the 

area under the curve is calculated for each hour and is 

added to the previous total area to get the energy at the 

present hour The curve begins always from energy of zero 

and increases with time It is not possible for the energy to 

decrease with time