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IEA PVPS Press Release
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International Energy Agency
Photovoltaic Power Systems Programme
PRESS RELEASE
21 March 2022 – The Task in charge of PV & Transport (Task 17) of the IEA PVPS has recently published a new report detailed below. This report provides insights on how to realise EV charging infrastructures for which the electricity is largely provided for by the sun. When designed well and used properly, PV charging stations can drastically increase the share of renewable energy for transport and reduce CO2 emissions.
"The report is of interest to researchers and policy advisors for renewable energy and transport, and to those responsible for charging infrastructure planning, deployment and operations."
 
~ Manuela Sechilariu, Acting Task 17 Manager and Report Editor
PV Powered Electric Vehicle Charging Stations –
Requirements and Conditions

The advent of electromobility is widely seen as an opportunity to reduce the harmful impacts of the transport sector on the environment and public health. A further substantial reduction in CO2 emissions related to EV usage can be achieved by the development of solutions based on photovoltaic (PV) systems as a primary energy source. IEA PVPS Task 17 is aiming to clarify the potential of the utilization of PV in transport and how to proceed towards realizing the concepts. Task 17’s scope includes PV-powered vehicles (subtask 1) as well as PV charging infrastructures (subtask 2).

This subtask 2 report focuses on PV-powered charging stations (PVCS). For the most part powered by the sun, they can offer slow charging as well as fast charging with less dependency on the electricity grid. PVCS can also provide additional services via vehicle-to-grid (V2G) and vehicle-to-home (V2H). These may increase the effective use of locally produced solar power.

This is the first technical report of subtask 2 of the Task 17. As an interim report, it presents the recent trends in PVCS for passenger cars including system architectures, preliminary requirements and feasibility conditions to increase benefits of PVCS, social acceptance, and it proposes steps for realizing PVCS.

Key recommendations

  • Main requirements and feasibility conditions for increasing PV benefits are:
    • On user behavior/ flexibility:
      • Prefer daily charging over weekly charging;
      • Accept long and slow charging when possible;
      • Limit charging to the number of kWh required for the daily trip, or charge more when PV power is available;
    • On technical aspects:
      • Limit charging power and stationary storage power to about 7 kW;
      • Choose an optimal size for stationary storage;
      • Use stationary batteries to further increase the share of PV;
    • Charge / discharge controlling, optimization, PV production forecasting, and communication between the operators and the end-users are necessary to increase the share of PV;
    • The location, local irradiation, user profile and needs influence the specifications for building a PVCS.
    • Well-conceived power management strategies with integrated V2G / V2H may reduce the peak pressure on the public grid while meeting the needs of users, and may provide financial and environmental benefits;
    • Societal impact and social acceptance, as well as aesthetic design aspects, of PVCS and new services associated have to be considered and undertaken as preliminary studies;
    • Design methodologies and tools are helpful for optimally sizing PVCS.
The publication is available here
About the IEA PVPS Task 17
Task 17 started in 2018 and focuses on possible contributions of photovoltaic technologies to transport, in the form of onboard PV and PV charging infrastructures.

The Task is co-managed by Mr Keiichi Komoto (Mizuho Research & Tech., Japan) and Ms Manuela Sechilariu (UTC, France).

Contacts for Further Information:
Keiichi Komoto, Task 17 Manager - keiichi.komoto@mizuho-ir.co.jp
Manuela Sechilariu, Acting Task Manager & Report Editor - manuela.sechilariu@utc.fr
The International Energy Agency (IEA), founded in 1974, is an autonomous body within the framework of the Organization for Economic Cooperation and Development (OECD). The Technology Collaboration Program (TCP) was created with a belief that the future of energy security and sustainability starts with global collaboration. The program is made up of thousands of experts across government, academia, and industry dedicated to advancing common research and the application of specific energy technologies.
The IEA Photovoltaic Power Systems Programme (IEA PVPS) is one of the TCP’s within the IEA and was established in 1993. The mission of the programme is to “enhance the international collaborative efforts which facilitate the role of photovoltaic solar energy as a cornerstone in the transition to sustainable energy systems.” In order to achieve this, the Programme’s participants have undertaken a variety of joint research projects in PV power systems applications. The overall programme is headed by an Executive Committee, comprised of one delegate from each country or organisation member, which designates distinct. ‘Tasks,’ that may be research projects or activity areas. This report has been prepared under Task 1, which deals with market and industry analysis, strategic research and facilitates the exchange and dissemination of information arising from the overall IEA PVPS Programme. 

The IEA PVPS participating countries are Australia, Austria, Belgium, Canada, Chile, China, Denmark, Finland, France, Germany, Israel, Italy, Japan, Korea, Malaysia, Mexico, Morocco, the Netherlands, Norway, Portugal, South Africa, Spain, Sweden, Switzerland, Thailand, Turkey, and the United States of America. The European Commission, Solar Power Europe, the Smart Electric Power Alliance (SEPA), the Solar Energy Industries Association and the Copper Alliance are also members. 
 
Copyright © 2022 IEA PVPS, All rights reserved.

Our mailing address is:
secretary@iea-pvps.org

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