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
    O-Uchi Kyuden System
  • Example of installation
    Example of installation

O-Uchi Kyuden System Configuration

O-Uchi Kyuden System configuration diagram
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
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
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)

Sustainable Development Goals

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.

SDGs Initiatives
https://global.toyota/en/sustainability/sdgs/

SDGs goals that this project makes particular contribution to

  • AFFORDABLE AND CLEAN ENERGY
  • INDUSTRY, INNOVATION, AND INFRASTRUCTURE
  • SUSTAINABLE CITIES AND COMMUNITIES
  • RESPONSIBLE CONSUMPTION AND PRODUCTION

DOWNLOADS (IMAGES)

View with caption
  • O-Uchi Kyuden System
    O-Uchi Kyuden System
  • Example of installation
    Example of installation
  • O-Uchi Kyuden System configuration diagram
    O-Uchi Kyuden System configuration diagram
  • Illustration of charging using an electrified vehicle
    Illustration of charging using an electrified vehicle
  • Illustration of operation using a smartphone
    Illustration of operation using a smartphone

RELATED CONTENT