Electric mobility is not only allowing the technology associated with transport to evolve, but also that related to other uses and needs. Toyota and its stationary batteries for the home are a good example of this.
It is not something new, since other car manufacturers such as Tesla, Mercedes-Benz and Renault have already offered it before, but now it is Toyota who signs up for the production of stationary batteries for the home.
His name is O-Uchi Kyuden Systembecause at the moment they are only available in Japan, and they promise to revolutionize the way we manage energy in our homes.
These stationary batteries guarantee the supply of electricity and save with its four modes of use: normal, saving, intelligent and storage.
Why? Well, because these batteries can be connected to the general network to store energy, as well as with solar panels or even a vehicle that has bidirectional charging. This allows us, on the one hand, to guarantee the supply of electricity in any circumstance and, on the other hand, to store energy when it is cheaper to use it later in the most expensive time slots.
Toyota stationary batteries of 8.7 kWh
But to what extent do Toyota’s stationary batteries allow energy to be stored? The Japanese manufacturer’s system allows a capacity of 8.7 kWh and deliver a maximum of 5.5 kW in alternating current.
Specifically, the system -which can be controlled via an iOS and Android App- is made up of four modules: the direct/alternating current converter, the control system, the current connector for a vehicle and, obviously, the batteries. In addition, it has been designed to be installed outdoors, since it has protection certification IP55 and IP67.
4 operating modes
- regular mode: priority is given to the sale of electricity. It is used during the day or during cloudy hours when the amount of energy generated is low, storing electricity at a more economical time. Eliminates self-consumption of solar generation and increases income from the sale of electricity.
- Energy save mode: prioritizes the energy self-sufficiency rate. Electricity charged by solar power generation is consumed at home at night. You can reduce the amount of electricity purchased from the power company and increase the electricity self-supply rate.
- smart mode: double load. It is charged twice a day with midnight power and solar power generation to cover the early morning and evening hours when the amount of power generation is low. The amount of purchased electricity can be further suppressed compared to the power saving mode.
- storage mode: to have electricity in case of power outage. The battery is always on standby in a fully charged state to prepare for an emergency. In case of power outage, we will supply power to the whole house and protect our daily life.
According to Toyota, these stationary batteries are “safe, long-lasting, high quality, good price and high performance”. In fact, the control system comes directly from Japanese vehicles, resulting in very competitive cost and reliability.
Toyota claims that its stationary batteries can supply the electricity needed for a single-family home for most of the day, although Tesla Powerwall offer more capacity, specifically 13.5 kWh.
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Photos: Toyota