A C program to Generate Electricity bill (Replica of Karnataka state electricity Bill) Based on the Standards provided by CESC (KPTCL) ,2022.
The entire C file is divided into 3 parts:
- Preprocessor directive.
- main function int as type.
- User defined function called 'elc_bill' with return type float.
The entire electricity bill is divided into 9 parts namely:
- Account details
- Personal details
- Connection details
- Consumption details
- Fixed charges
- Energy charges
- FAC charges
- Additional charges and
- The total net amount.
It consists of 10 digit Account ID which will be taken by user as input.
It consists of two strings namely owner's name and address which will be taken as input by the user. Both of them should be less than 31 Characters.
The connection details further classified into tariff and sanctioned load. Both of them are treated as constant for the particular position and are taken directly from the original electricity bill.
The consumption details are further classified into four factors namely:
- Previous meter reading
- Present meter reading
- Consumption in units and
- Power factor.
The previous meter reading and present meter reading will be taken as input by the user and the difference between these two readings gives the consumption in units. Power factor is kept constant which is equal to 1. It should be noted that present meter reading should always be greater than that of previous meter reading.
The fixed charges depends on the units consumed by the customer. If the units consumed is less than 50 then Rs 85 is considered as Fixed charge and if the units consumed is 50 or more then Rs 100 is taken as Fixed Charge. It should be noted that even if the units consumed is 0, the fixed charges will be applied.
The Information about the Energy charges is explained by the below table:
| Units Consumed | Fixed rate in Rs |
|---|---|
| For first 50 units. (0-50) | 4.10 |
| For next 50 units. (51-100) | 5.55 |
| For next 100 units. (101-200) | 7.10 |
| For next further consumed units. (201-∞) | 8.15 |
Let us understand it with an example. Let the units consumed be 350. The entire units is divided into 4 parts as mentioned in the above table.
- Firstly - 50*4.10 = 205
- Secondly - 50*5.55 = 277.5
- Thirdly - 100*7.1 = 710
- Fourthly - 150*8.15 = 1222.5
- Total Energy charges = 205+277.5+710+1222.5 = 2415
If the amount of units consumed is 125, then it is divided into 3 parts,
- Firstly - 50*4.10 = 205
- Secondly - 50*5.55 = 277.5
- Thirdly - 25*7.1 = 177.5
- Total Energy charges = 205+277.5+177.5 = 660
FAC Charge is calculated as the product of Number of units consumed and the constant 0.19. If the total units consumed is 350 units then FAC charge will be:
- FAC = 350*0.19 = 66.5
The additional charges are further classified into:
- Solar rebate
- Interest
- Arrears
- Tax
- Bill amount and
- Others
Solar utilization is an optional parameter which is asked to the user. If the user select 'No' for the solar utilization then the solar utilization amount becomes 0 and nothing will be deducted from bill amount and if the user select 'Yes' for the solar utilization then a subsidy amount of 0.5 Rs per unit will be deducted from the bill amount to a maximum of 50 Rs per bill.
Interest is applied only if the arrear is present. An Interest of 5% is applied on the Arrear amount.
It is the amount needs to be paid in case of any left unpaid money from the previous bills. Its input is taken by the user.
A tax of 5% is applied on the Bill Amount.
It is the sum of Fixed charges, Total Energy charges and FAC charges.
It is an optional charges applied on specific cases only.
It is the total amount required to be paid by the customer. It is given by the formula:
- Total Net Amount = (Bill Amount + Tax + Arrears(if any) + Interest(if any) ) - Solar Rebate