Browse Publications Technical Papers 2020-01-0973

EV Penetration Impacts on Environmental Emissions and Operational Costs of Power Distribution Systems 2020-01-0973

Global warming is one of the major concerning issues in the present world that happens mainly due to the pollution of the environment. US transportation section driven by gas is responsible for nearly thirty percent of all US global emissions, more than almost any other sections. It also consumes huge amount of resources that might risk for energy security and availability in future. In this scenario, an efficient operation and management of EVs in the power distribution systems is highly manifested to reduce environmental emissions and operational costs for the utilities, and provide financial benefits for the EV owners. This research assesses the integration of different level of EVs in the distribution system and observes its impacts on environmental emissions and power system operational costs. Integration of EVs can reduce the emission from two different aspects. First, by replacing the traditional combustion engine cars for providing clean and environment friendly transportation and second, through the V2G program, by providing power to the utility during peak hours and reducing the emission created by hydrocarbon dependent generators. The owners of the EVs can also get financial benefit by charging the car during off-peak hours and selling it to the grid during peak hours with higher prices. The utilities also can use EVs during peak hours and use less fossil fuel-based energy generation that ultimately helps to reduce electricity generation cost and environmental emission. The uncertainty of driving pattern of EVs are considered in the research to get more accurate results. The PG&E 69-bus distribution system is used to simulate the integration of EVs and to perform energy management to assess the operational costs and emissions. The results demonstrate efficient integration of EVs along with energy management strategies has great potential to reduce environmental emissions as well as distribution system's operational cost.


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