Interfaces of Grid Users/ Focus on EV and Local Storage (GUII)


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Chairman: Hiroshi Kuniyoshi, Japan Smart Community Alliance

This working group deals with grid user interactions and interfaces with special emphasis on electrical vehicles and small storage devices in residential and commercial buildings. The aim is to develop the necessary tools for enabling the customer to make choices regarding prices and energy sourcing, to organize the retail market and to introduce new services.

Electrification of automobiles is an effective way to implement CO2 reduction and energy saving in the transport sector. For a larger effect, a higher rate of electrification is desired. Therefore, diffusion of vehicles equipped with large capacity batteries and connectable to the power system, like EV or PHEV (Plug-in Hybrid EV), is expected in the near future.

When we view the issue from the power system, the batteries in the vehicles could work as energy storage equipment at charging and as a distributed power source at discharging. In other words, batteries in EVs/PHEVs could work as a buffer for stabilizing the system. For EV/PHEV users, it might create further convenience if the charging and discharging is optimized.

The working group aims to sort out the present situation and potential subjects for future developments regarding activities toward EV/PHEV diffusion, interaction between EV/PHEV and the power system, and their interface. It studies and analyzes the outcomes to increase the people’s interest in this type of mobility, in other words, demand, for EV/PHEVs, considering situations of each member’s own country and region.

In order to ensure that we do not duplicate the work and outcome of the other workgroups we consider the following points:

  • Sharing information on grid-connecting EV/PHEV (Actual cases of EV/PHEV diffusion, subsidies, systems, regulations and institutions)
  • Identifying developments for the future
  • (Obstacles on diffusion of EV/PHEV, problems at connection of EV/PHEV to the power system)
  • Studying and analyzing the way to increase people’s buying intentions considering the diffusion of EV/PHEVs

In order to set the scene, the workgroup aims to sort out the present situation and potential subjects for future developments regarding activities toward EV/PHEV diffusion, interaction between EV/PHEV and the power system, and their interface.

Based on the vision mentioned above, the charter was finalized in mid-January, and the workgroup is now going forward to set list of priority.

Using a questionnaire, information has been brought together on the following items:

  1. What information the GUII-WG members can share
    Case Study, lessons learned
    Financial-supporting system
    Policy and regulatory
  2. What you consider as challenges/issues to address from the viewpoint of EV mass introduction and interfaces between EV and the power system.

Current membership:

  • Norway: dr. Helge Seljeseth
  • Canada: Alex Bettencourt
  • Taiwan Dr. Zong-Zhen Yang
  • Australia Laurie Curro
  • Australia Andy Zhao
  • Korea Dae-gi Kim
  • Korea Nam-kyun Kim
  • Denmark Morten Broennum Andersen
  • Ireland David Lee
  • Ireland David MaWhinney
  • Japan Seiji Morishima
  • Japan Yuichiro Shimura