Question

Calculate the Diversity and Demand Factor of a Generating Station
A generating station supplies the following loads : 15000 kW, 12000 kW, 8500 kW, 6000 kW and 450 kW. and 450 kW. The station has a maximum demand of 22000 kW, the annual of the station is 48%. Calculate (1) the number of units supplied annually (2) the diversity factor, and the demand factor?

Answer 1

Demand factor = maximum demand / connected load total
                 = 22000kw/(15000+12000+8500+6000+450)kW
      = 0.5244   or 52.44%

diversity factor = sum of individual demands /maximum demand
           = (15000+12000+8500+6000+450) / 22000 = 1.907

Annual load factor = 48% given
    = Units generated (supplied) a year * 100 /(maximum demand * hours of operation)

So  Units supplied in a year
    = annual factor /100 * maximum demand * hours of operation
    = 48/100  * 22000 * 24* 365 
    = 92,505,600  kWh  or units

Answer 2

In the context of electricity,the diversity factor (or simultaneity factor. ) is the ratio of the sum of the individual non-coincident maximum loads of various subdivisions of the system to the maximum demand of the complete system. The diversity factor is always greater than 1.