When the rate of electrical energy is charged on the basis of maximum demand of the consumer and the units consumed, it is called:
When the rate of electrical energy is charged on the basis of maximum demand of the consumer and the units consumed, it is called: Correct Answer Two-part tariff
Tariff: The rate at which electrical energy supplied to a consumer is known as a tariff.
Objectives of Tariff:
- Recovery of the cost of producing electrical energy at the power station
- Recovery of cost on the capital investment in transmission and distribution systems
- Recovery of the cost of operation and maintenance of a supply of electrical energy
- A suitable profit on the capital investment
Desirable Characteristics of Tariff:
- Proper return
- Fairness
- Simplicity
- Reasonable profit
- Attractive
Different types of tariff given below
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
Simple Tariff: If there is a fixed rate per unit of energy consumed, then it is called as a simple tariff or uniform rate tariff
Block Rate Tariff: When a block of energy is charged at a specified rate and the succeeding blocks of energy are charged at progressively reduced rates, it is called as block rate tariff.
Flat Rate Tariff: When different types of consumers are charged at different uniform per unit rates, it is called as a flat-rate tariff.
- The consumers are grouped into different classes and each class of consumers is charged at a different uniform rate
- The different classes of consumers are made considering their diversity and load factors
- It is fairer to a different type of consumers and quite simple in calculations
- The flat rate for power load is generally lower than the lighting load