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+//Electric Power Generation, Transmission and Distribution by S.N.Singh

+//Publisher:PHI Learning Private Limited

+//Year: 2012 ; Edition - 2 

+//Example 4.5

+//Scilab Version : 6.0.0    ; OS : Windows

+

+clc;

+clear;

+

+

+LF=0.35;                                                                    //Load factor in percentage

+mon_consumption=504;                                                        //Monthly consumption in kWh

+max_dem_rate=180;                                                           //Maximum demand  per kWh in Rs

+Unit_rate=2.00;                                                             //Unit rate of electricity  per kWh in Rs

+max_dem1=mon_consumption/(LF*24*30);                                        //Maximum demand of consumer in kW

+mon_bill1=(max_dem1*max_dem_rate)+(Unit_rate*mon_consumption);              //Monthly bill of consumer in Rs

+overall_cost1=mon_bill1/mon_consumption;                                    //Overall cost of consumer in Rs 

+new_consumption=mon_consumption*1.20;                                       //New consumption of consumer in kWh

+max_dem2=new_consumption/(LF*24*30);                                        //Maximum demand of same Load factor in kW

+mon_bill2=(max_dem2*max_dem_rate)+(Unit_rate*new_consumption);              //Monthly bill of consumer in Rs

+overall_cost2=mon_bill2/new_consumption;                                    //Overall cost of consumer in Rs

+max_dem3=mon_consumption/(0.40*24*30);                                      //Maximum demand of increased load factor in kW

+mon_bill3=(max_dem3*max_dem_rate)+(Unit_rate*mon_consumption);              //Monthly bill of consumer in Rs

+overall_cost3=mon_bill3/mon_consumption;                                    //Overall cost of consumer in Rs

+

+printf("\nThe monthly bill is %.f Rs and the average cost per KWh is %.2f Rs",mon_bill1,overall_cost1);

+printf("\nThe overall cost per kWh if the consumption is increased by 20 percentage with the same load factor is %.2f Rs",overall_cost2);

+printf("\nThe overall cost per kWh if the consumption remains same but loadfactor is increased to 40 percentage is %.2f Rs",overall_cost3);