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Nissan is preparing to make a major push, starting next year, with its new LEAF EV and the ability to quick charge it is one of the primary selling points. However, doing 480V charging on a wide scale is problematic. First of all, there are almost no such charging stations in existence today. Secondly, the presence of public charging stations pulling down high voltage current like that would put a significant load on the grid.

In an effort to address these potential problems proactively, Nissan is partnering with Showa Shell to test that company's latest solar photovoltaic panels in conjunction with the automaker's lithium ion batteries. Although few details are available, it appears that the companies will evaluate quick charging systems that use solar energy to charge a bank of automotive-grade batteries. The batteries would then be used to charge cars. If it is effective, the system would reduce the load required from the grid, eliminating one of the concerns of electric vehicles while also making the use of solar more practical.


[Source: Nissan]

press release

NISSAN AND SHOWA SHELL START STUDIES ON JOINT DEVELOPMENT OF A QUICK CHARGING SYSTEM USING SOLAR PANELS AND LITHIUM ION BATTERIES

Nissan Motor Co., Ltd. and Showa Shell Sekiyu K. K. today announced they will start studies on joint development of a quick charging system for electric vehicles (EV) using Showa Shell's next-generation CIS solar panels and Nissan's advanced lithium ion batteries for automotive use.

This joint development will take place as part of a commissioned project for EV diffusion launched by the Ministry of Economy, Trade and Industry.

A quick charging system of which both companies will consider joint development aims to have following characteristics.

* Maximizing the use of solar power which is renewable energy, the system will contribute to diffusion of EV as a ultimate zero emission vehicle which emits no exhaust gas like CO2 not only in driving but also in generating electricity.
* With lithium-ion batteries, power will be able to be supplied in case of power outage at the time of disaster.
* Reducing influence to grid power (load leveling), the system will enable to install quick charging facilities with lower electric power capacity.

In addition, a quick charging system using the next-generation CIS solar panels and lithium ion batteries is expected to be utilized in houses and large-scale solar power plants (mega solar plants).

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