Critical Elements of Vehicle-to-Grid (V2G) Economics

Steward, Darlene

doi:10.2172/1390043

Cited by 33 publications

(22 citation statements)

References 32 publications

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“…These features provide power grid stability insurance. Demand based analysis solutions have also been implemented to optimize and balance power grid operation [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Aggregator to Electric Vehicle LoRaWAN Based Communication Analysis in Vehicle-to-Grid Systems in Smart Cities

et al. 2020

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Recently, there has been growing attention to the power grid management due to the increasing concerns on global warming. With the advancement in electric vehicles (EV) industry and the evolution in batteries, EVs become an important contributor to the grid with capability of bidirectional power exchange with the grid. In this context, Vehicle-to-Grid (V2G) systems enable multiple functionalities between EVs and the corresponding aggregator. Thus, reliable, long-range communication capabilities between aggregator and EVs is compulsory. In this paper, wireless channel analysis for aggregator and electrical vehicle communication using Long-Range Wide Area Network (LoRaWAN) technology in V2G is presented, in order to test a low-cost solution with large coverage and reduced power consumption profile. Wireless channel and system-level measurements have been performed in a real urban scenario between EV's charging station in Pamplona (Spain) and a vehicle in motion using LoRaWAN 868 MHz devices. Wireless channel characterization is performed by implementing a full 3D urban scenario model, including elements such as buildings, vehicles, users and urban infrastructure such as lamp posts and benches. By means of in-house developed 3D Ray Launching algorithm with hybrid simulation capabilities, estimations of received power levels, signal to noise ratio and time domain parameters have been obtained, for the complete volume of the scenario under test in dense urban conditions. V2G end to end communication has been validated by implementing an intra-vehicle Controller Area Network-BUS (CAN BUS) data gathering system connected to the vehicle LoRaWAN transceiver and subsequently, to a cloud-based web service. The results show that the accurate deterministic based radio channel analysis enables to optimize the network design of LoRaWAN networks in a vehicular environment, considering inter-vehicular and infrastructure links, enabling scalable, low cost end to end data exchange for the deployment of ancillary V2G services.

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“…These features provide power grid stability insurance. Demand based analysis solutions have also been implemented to optimize and balance power grid operation [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Aggregator to Electric Vehicle LoRaWAN Based Communication Analysis in Vehicle-to-Grid Systems in Smart Cities

et al. 2020

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“…According to the NREL report [2], each vehicle connects to the electric power grid, at which point the grid systems operator can control the charging and discharging of the vehicle's battery in the V2G concept. Many V2G projects are demonstrated, including in Japan [3], [4].…”

Section: V2g System and Its Meritmentioning

confidence: 99%

Effect of Vehicle-to-Grid on generation scheduling: in case of a collection of public holidays on the Japanese calendar

Yamaguchi¹,

Kakimoto

Totsuka

et al. 2020

E3S Web Conf.

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With the increase in the amount of photovoltaic power generation (PV) introduced, measures to respond to PV output fluctuations by Vehicle to Grid (V2G), which connects storage batteries of electric vehicles (EV) to the power system, have been studied. Since the usage status of many car changes on weekdays and holidays, the effects of V2G may be evaluated more accurately by considering weekly operation in addition to daily operation. In this study, we will quantitatively evaluate the effects of considering EVs that can be used for the weekly operation of a power supply group, including hydropower plants, in case of a collection of public holidays on the Japanese calendar.

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“…This is based on the vehicle-to-grid (V2G) concept. V2G technology enables a bi-directional flow between an EV's battery and the grid [8][9][10][11]. Thus, both the charging and discharging of electrical energy are allowed.…”

Section: Introductionmentioning

confidence: 99%

Vehicle-To-Grid for Peak Shaving to Unlock the Integration of Distributed Heat Pumps in a Swedish Neighborhood

2020

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The city of Stockholm is close to hitting the capacity limits of its power grid. As an additional challenge, electricity has been identified as a key resource to help the city to meet its environmental targets. This has pushed citizens to prefer power-based technologies, like heat pumps and electric vehicles, thus endangering the stability of the grid. The focus of this paper is on the district of Hammarby Sjöstad. Here, plans are set to switch from district heating to heat pumps. A previous study verified that this choice will cause overloadings on the electricity distribution grid. The present paper tackles this problem by proposing a new energy storage option. By considering the increasing share of electric vehicles, the potential of using the electricity stored in their batteries to support the grid is explored through technical performance simulations. The objective was to enable a bi-directional flow and use the electric vehicles' (EVs)' discharging to shave the peak demand caused by the heat pumps. It was found that this solution can eliminate overloadings up to 50%, with a 100% EV penetration. To overcome the mismatch between the availability of EVs and the overloadings' occurrence, the minimum state of charge for discharging should be lower than 70%.

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Critical Elements of Vehicle-to-Grid (V2G) Economics

Cited by 33 publications

References 32 publications

Aggregator to Electric Vehicle LoRaWAN Based Communication Analysis in Vehicle-to-Grid Systems in Smart Cities

Aggregator to Electric Vehicle LoRaWAN Based Communication Analysis in Vehicle-to-Grid Systems in Smart Cities

Effect of Vehicle-to-Grid on generation scheduling: in case of a collection of public holidays on the Japanese calendar

Vehicle-To-Grid for Peak Shaving to Unlock the Integration of Distributed Heat Pumps in a Swedish Neighborhood

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