How are wheeling charges computed? Give the procedure for source connected at 33kV and consumer connected at 11 kV.

Wheeling charges refer to the fees paid by electricity generators or consumers for using the transmission and distribution network to transport electricity from the point of generation to the point of consumption. The computation of wheeling charges typically involves several steps, and the methodology can vary slightly depending on regional regulations and the specific transmission and distribution infrastructure involved. Here’s a general procedure for computing wheeling charges when the source is connected at 33kV and the consumer at 11kV:

1. Identify the Relevant Charges and Tariffs

• Transmission Charges: Charges for using the high-voltage transmission network.
• Distribution Charges: Charges for using the medium and low-voltage distribution network.
• Losses: Account for transmission and distribution losses in the network.

2. Determine the Energy Flow

Calculate the amount of electricity to be wheeled from the source (33kV) to the consumer (11kV).

3. Calculate Transmission Charges

Transmission charges are usually calculated based on the capacity used (kW or MW) and the distance the electricity is transmitted. The regulatory commission sets these rates.

[ \text{Transmission Charge} = \text{Energy Wheeled (kWh)} \times \text{Transmission Tariff (₹/kWh)} ]

4. Calculate Distribution Charges

For electricity distributed from the 33kV to 11kV network, consider the relevant distribution tariffs.

[ \text{Distribution Charge} = \text{Energy Wheeled (kWh)} \times \text{Distribution Tariff (₹/kWh)} ]

5. Account for Technical Losses

Electricity losses occur due to the inherent inefficiencies in the transmission and distribution networks. Calculate these losses using standard loss percentages provided by the regulatory commission or based on historical data.

[ \text{Total Losses} = \text{Energy Wheeled (kWh)} \times \text{Loss Percentage} ]

Adjust the energy wheeled to account for these losses.

[ \text{Net Energy Delivered} = \text{Energy Wheeled (kWh)} – \text{Total Losses (kWh)} ]

6. Aggregate the Charges

Combine the transmission and distribution charges to determine the total wheeling charge.

[ \text{Total Wheeling Charge} = \text{Transmission Charge} + \text{Distribution Charge} ]

7. Regulatory Adjustments and Additional Charges

• Cross-Subsidy Surcharge: Additional charges to support subsidized tariffs for certain consumer categories.
• Regulatory Fees and Charges: Any additional fees imposed by the regulatory body.

Example Calculation

1. Energy Wheeled: Assume 1,000,000 kWh is to be wheeled from the 33kV source to the 11kV consumer.
2. Transmission Tariff: ₹0.10 per kWh.
3. Distribution Tariff: ₹0.15 per kWh.
4. Loss Percentage: Assume 5%.

Transmission Charge:
[ 1,000,000 \text{ kWh} \times ₹0.10/\text{kWh} = ₹100,000 ]

Distribution Charge:
[ 1,000,000 \text{ kWh} \times ₹0.15/\text{kWh} = ₹150,000 ]

Total Losses:
[ 1,000,000 \text{ kWh} \times 0.05 = 50,000 \text{ kWh} ]

Net Energy Delivered:
[ 1,000,000 \text{ kWh} – 50,000 \text{ kWh} = 950,000 \text{ kWh} ]

Total Wheeling Charge:
[ ₹100,000 + ₹150,000 = ₹250,000 ]

This simplified procedure provides an overview of how wheeling charges might be computed, but actual calculations would be subject to detailed regulatory guidelines and the specific tariffs set by the regional electricity regulatory commissions.