Correct Answer - Option 1 : Rs. 1,10,080
Concept:
Two-Part Tariff:
- When the rate of electrical energy is charged based on the maximum demand of the consumer and the units consumed, it is called a two-part tariff.
- In this method, the total charge is divided into two components: fixed charges and running charges
- The fixed charges depend upon the number of units consumed by the consumer.
- The consumer is charged at a certain amount per kW of maximum demand plus a certain amount per kWh of energy consumed.
- This type of tariff is mostly applicable to industrial consumers who have appreciable maximum demand
- Total charges = Rs (b × kW + c × kWh)
b = charge per kW of maximum demand
c = charge per kWh of energy consumed
- Load factor = (Average load) / (maximum demand)
- Average load = (Total unit energy consumed) / (Total time)
- Overall cost per unit (kWh) generated = (Total charges) / (Total unit energy consumed)
Calculation:
Maximum demand = 200 kW
Load factor = 40%
Tariff rate = Rs. 200 per kW of maximum demand + 10 paise per kWh
Energy consumed per annum (kWh) = (200 × 0.4 × 8760) = 700.80 × 103 kWh
Annual fixed charge = Rs. 200 per kW of maximum demand
Annual fixed charge = 200 × 200 = Rs 40,000
Running charge = 10 paise per kWh
Running charge = 0.1 × 700.80 × 103 = Rs 70,800
Total charge or tariff = Rs 40,000 + Rs 70,800 = Rs 1,10,800
