Nissan
has unveiled a system which enables the Leaf to supply an "ordinary household" with electricity for up two days, given that the average household in Japan consumes just 10 to 12 kilowatt hours of electricity a day.

Nissan Leaf to house system
As part of the automaker's comprehensive efforts toward the realization of a zero-emissions society, the Leaf-to-house system was put to use powering Kan-kan-kyo, a structure built in front of Nissan's global headquarters in Japan. Nissan says it will continue to develop the Leaf-to-house system and intends to commercialize it in Japan sometime during this fiscal year.

In simple terms, the system operates like this: electricity stored in the Nissan Leaf's 24-kWh lithium-ion battery is supplied to a house by connecting the vehicle's quick-charge port to the building's electricity distribution panel. Nissan says this system is ideal for either power outages or shortages. Currently, Nissan has not committed to offering this power-my-house setup on U.S.-bounds Leafs and you can read about how the devastating earthquake in Japan earlier this year affected this technology here.

[Source: Nissan]
Show full PR text
Nissan Unveils New Power Supply System Through Nissan LEAF

YOKOHAMA (August 2, 2011) - Nissan Motor Co., Ltd. today unveiled a system which enables electricity to be supplied from the lithium-ion batteries installed in Nissan LEAF to ordinary households, as part of its comprehensive efforts toward the realization of a zero-emission society. The new system was unveiled at 'Kan-kan-kyo'*1, a house built in front of the Nissan Global Headquarters by Sekisui House Ltd. Nissan will continue development and study how it can be fully aligned and connected with current power systems. Working with a wide range of partners interested in both its development and sales, Nissan aims to commercialize the system during this fiscal year.

Through this system, electricity stored in Nissan LEAF can be supplied to a house by connecting the car to the house's electricity distribution panel using a connector linked to the LEAF's quick charging port. The connector complies with the CHAdeMO Association's protocol for quick chargers, adopted globally for its great versatility, safety and reliability.

With this system, Nissan LEAF can be used as an electricity storage device for houses in preparation for power outages and/or shortages. The lithium-ion batteries can store up to 24kWh of electricity, sufficient to power an average Japanese household for about two days*2.
Nissan believes this system will allow households to be supplied with a stable amount of electricity throughout the day and reduce the burden on the current power supply by charging and storing electricity in Nissan LEAF with electricity generated at night or through sustainable methods such as solar power, and using it during high demand periods.

This system can not only supply electricity from the vehicle but also charge it to the vehicle. Current Nissan LEAF owners will also be able to use this system*3.

[System Overview]

Power Control System (PCS)

Rating: 6kW
Control system: Sinusoidal PWM System
System power: 200V single-phase three-wire system

Operation display panel

Display for switching electricity charge between supply
Battery power, output voltage and output current display

Nissan LEAF connection specification

Quick charge connector (CHAdeMo specification)

Nissan LEAF

Corresponds to the electricity supply program

*1: 'Kan-kan-kyo'
A demonstration house built by Sekisui House under 'Smart Network Project' conducted as part of commissioned project by the Ministry of Internal Affairs and Communications
House: Wooden structure SHAWOOD, 'The Gravis', with environmentally-friendly residence 'Green First' specification
Address: 5-1-17, Minatomirai, Nishi-ku, Yokohama City, Kanagawa (Block 54)
URL: http://www.sekisuihouse.co.jp/snpj-kankankyo/
Smart Network Project Organizers: NTT DOCOMO, INC., NEC Corporation, NAMCO BANDAI Games Inc. and Sekisui House Ltd.
*2 Average electricity usage of a standard home in Japan: 10~12 kWh/day
*3 Need to adapt to the electricity supply program separately

About Nissan
Nissan Motor Co., Ltd., Japan's second-largest automotive company, is headquartered in Yokohama, Japan, and is part of the Renault-Nissan Alliance. Operating with more than 248,000 employees globally, Nissan provided customers with more than 4.1 million vehicles in 2010, generating revenue of 8.77 trillion yen ($102.37 billion US). With a strong commitment to developing exciting and innovative products for all, Nissan delivers a comprehensive range of 64 models under the Nissan and Infiniti brands. A pioneer in zero-emission mobility, Nissan made history with the introduction of the Nissan LEAF, the first affordable, mass-market, pure-electric vehicle and winner of numerous international accolades, including the prestigious 2011 European Car of the Year award and 2011 World Car of the Year.


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