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The economic feasibility of DC Fast Charging (DCFC) stations is strongly impacted by electricity charges, billed by electricity consumption (kWh) and power demand (kW), that have to be paid to the local utility. In this simulation study, the possibilities to significantly improve DCFC economics by reducing these utility charges have been investigated for DCFC stations assumed to be installed at highway...
The introduction of electric vehicles on the power grid translates to operational challenges and opportunities of using these vehicles as distributed energy resources. This paper presents an algorithm for utilities to identify optimal scenarios for controlling electric load of plug-in electric vehicles on a neighborhood transformer, and their potential contribution to reducing overloading through...
This work uses TRNSYS simulations with archetypal residential and commercial building energy demand data to evaluate the performance of a multi-building energy hub with a combined cooling, heating, and power (CCHP) system. Within this framework, conventional and combined heat and power (CHP) energy generation technologies are implemented in different scenarios to meet the cooling, heating, and domestic...
Vehicle-to-Home (V2H) is a support activity using electric vehicles where the electric power stored in their batteries is supplied in response to residential electrical demand. It is understood that supplementary battery use such as V2H will reduce the battery service life. Judicious V2H activity can provide energy benefits at acceptable levels of battery life reduction. The present study employs...
The widespread adoption of electric vehicles (EVs) and electric heat pumps (EHPs) would result in radically different electric household demand characteristics, while also possibly posing a threat to the stability of the electrical grid.Micro-cogeneration (MCHP) is considered by the European Community as one of the most effective measures to save primary energy and reduce emissions. The utilization...
This paper investigates the effects of disturbances originating in the electric grid as well as residential appliance inrush currents on the integrity of battery packs in electric vehicles that are connected to the grid or a residence for the purpose of V2G or V2H service. Simulation results show that the effect on battery capacity loss was negligible. The large size of an automotive battery pack...
Electric vehicles are broadly considered to have a great potential for reducing emissions from transportation and are sometimes presented as a ‘one-size-fits-all’ solution. A simulation study was performed to forecast least emitting options for single vehicles as well as for total light duty vehicle fleets in the Canadian provinces of Québec, Ontario and Alberta for the year 2025. The study used the...
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