Abstract:

In India, electric mobility is currently at its infancy. At the crossroads of this possible market, disruption is the electricity sector. While additional electricity sales due to Electric Vehicle (EV) charging would help increase the revenue volume of an electricity distribution utility, charging demand may accentuate the peak load of the service area and have a bearing on the cost of power procurement for the distribution utility. Thus, it becomes essential to evaluate the additional electricity demand from EV adoption, its possible pattern and contribution to base and peak load. This will enable DISCOMs to operate its distribution network efficiently and the State Electricity Regulatory Commissions to introduce appropriate instruments to avoid any negative impact on the electricity supply.

This study models the peak and off-peak contribution from EV charging and estimates the impact on the cost of power procurement of electricity utilities in a state. The study finds that EV charging significantly increases energy consumption from 12 AM to 6 AM. The study also finds that the number of EVs which can potentially impact the average cost of supply varies across different DISCOMs.