Jun. 02, 2022

Toyota Releases Storage Battery System for Residential Use Based on Electrified Vehicle Battery TechnologyProvides electricity to homes both for normal usage and emergencies, supporting a stress-free lifestyle

Toyota City, Japan, June 2, 2022―Toyota Motor Corporation (Toyota) has developed batteries based on the concept of "safe, long service life, high-quality, good value for price, and high performance" so that customers can use them with peace of mind. This technology utilizing many years of electrified vehicle development as well as on-board parts and units have been used to create the O-Uchi Kyuden System^*1, a home storage battery system. Pre-orders for the system start today, and sales in Japan will begin in August through home builders and general construction companies.

*1	O-Uchi Kyuden System is a registered trademark of Toyota

O-Uchi Kyuden System
Example of installation

O-Uchi Kyuden System Configuration

: O-Uchi Kyuden System configuration diagram

The O-Uchi Kyuden System uses electrified vehicle battery technology such as Toyota's battery control to provide a rated capacity of 8.7 kWh and a rated output of 5.5 kWh. This ensures safety and provides a supply of electricity to the entire home not just in normal situations, but even during power outages caused by natural disasters.

In addition, by linking with a photovoltaic system, it can supply the appropriate amount of electricity based on customer needs throughout the day and night. Toyota believes that using this system will encourage the use of solar power which is a renewable energy.

Unique to Toyota, the system supports supplying power^*2 from electrified vehicles (HEV, PHEV, BEV, FCEV) at 100V AC, and can use electricity stored in electrified vehicles as a backup power source during power outages, allowing users to live with peace of mind.

*2	The maximum output from the vehicle supply adapter is 1.1 kWh

: Illustration of charging using an electrified vehicle

In addition, future moves to IoT using a wireless LAN router connected to a hybrid power conditioner allow for storage capacity, operation mode, and other settings to be viewed and set in real-time from a dedicated app on a smartphone or tablet^*3 (as of now, only available in Japanese).

*3	Requires iOS 14.2 or later, Android 7.0 or later

: Illustration of operation using a smartphone

Main Specifications

Rated Capacity		8.7 kWh
Maximum Output		5.5 kW
Operating Temperatures		-20℃ to +45℃ (-20℃ to +40℃ when using automated operation or the vehicle power supply adapter)
Dimensions and Weight (L x W x H)	Hybrid power conditioner	445 x 198 x 698 mm / 33 kg
	DC-to-DC converter	337 x 92.4 x 429 mm / 9.0 kg
	Storage battery unit	1,142 x 341 x 432 mm / 142 kg
	Vehicle power supply adapter	372 x 140 x 532 mm / 9.0 kg
Installation Location		Outdoors

Link to the "O-Uchi Kyuden System" webpage (Japanese only)

O-Uchi Kyuden System TOP

"Achieving zero, and adding new value beyond it"

As part of efforts to pass our beautiful "Home Planet" to the next generation, Toyota has identified and is helping to solve issues faced by individuals and overall society, which Toyota calls "Achieving Zero," hoping to help reduce the negative impacts caused by these issues to people and the environment to zero. Additionally, Toyota is also looking "Beyond Zero" to create and provide greater value by continuing to diligently seek ways to improve lives and society for the future.

About Beyond Zero: https://global.toyota/en/mobility/beyond-zero/

Toyota Motor Corporation works to develop and manufacture innovative, safe and high-quality products and services that create happiness by providing mobility for all. We believe that true achievement comes from supporting our customers, partners, employees, and the communities in which we operate. Since our founding over 80 years ago in 1937, we have applied our Guiding Principles in pursuit of a safer, greener and more inclusive society. Today, as we transform into a mobility company developing connected, automated, shared and electrified technologies, we also remain true to our Guiding Principles and many of the United Nations' Sustainable Development Goals to help realize an ever-better world, where everyone is free to move.