Japanese car and battery manufacturer Toyota Motor Corporation has launched a new residential storage system based on its proprietary vehicle battery technology.
“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 kW,” the company said in a statement. “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.”

Image: Toyota
The battery has a size of 1,142 mm x 341 mm x 432 mm and a weight of 142 kg. It can be installed in outdoor environments and with operating temperatures ranging from -20 C to 45 C. It is equipped with a hybrid power conditioner, a DC-to-DC converter, and a vehicle power supply adapter with a maximum output of 1.1 kWh.
Toyota explained that the system supports supplying power from hybrid electric vehicles (HEVs), plug-in hybrid electric vehicle (PHEVs), battery electric vehicles (BEVs), and fuel cell electric vehicles (FCEVs) at 100 V. The technology utilizes “many years of electrified vehicle development as well as on-board parts,” the company emphasized. “It provides electricity to homes both for normal usage and emergencies, supporting a stress-free lifestyle.
The company did not disclose any more technical details about the battery.
*The article was amended to reflect that the storage system has a rated output of 5 kW.
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5.5 kW, power flow rate, not 5.5 kWh of storage. How could the storage capacity be both 8.7 and 5.5?
Thanks for your message, Roy. The article was amended.
5.5 kW power output.
8.7 kWh storage capacity
Bit confused about the “vehicle power supply adapter”. Should it’s output also be in kW and is it bidirectional?
I think a good understanding by the editors of the difference between kW and kWh would have made the article more intelligible.
A capacity of 8.5 kWh with a rated output of 5.5 kW that can only charge a vehicle at 1.1 kW is frankly a bit useless. Useful for the house but it would have been better not to have the car charger at all and make it cheaper. Imagine… “I need to pop out to the post office” “I’ll put the car on charge, it will be ready in two hours, but you must come straight home because you’ll only have about a 10 mile range”
Maybe
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Storage is 8.7 kilowats
.can charge upto 5.5 kilowats.
.butT for safety of your momo… Limits charging of your ev at 1.1 kilowat per hour .
P=i x e
1100watts divide by 100 volts gives 11 amps NoR 11ooo milli amp… Dived by 5000 mAh is 2.2 iphones.. if yer phone is 100 volts .
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.this is for WORST situation only…MAYBE.
.at least ye have this kind of STORAGE POWER SUPPLY ..
.
. IF price is natural 50 dollars each.. i order 10 thousands pieces.
.
.BizMuLLaGh pbuh pwe SWaT pwa blyat kkk ngk kgb kjv niv ssd ddt rip etc etc.
I think that Power of 5.5Kw is maximum possible so its load could be anywhere from 1watt to 5.5kw and the vehicle charging rate could be controlled to 4kw output, then the maximum time possible for charging is only around 8.5kwhr/4kw – approximately 2.1 Hours… Charging Tesla type cars is out of the question but for small evehicle – this will do.
What is the life time of battery
Brilliant Idea.
Excellent concept.
These are the type of technical devices that can very useful in implementing them within other systems that can be part of sustainable energy storage and sources, hence achieve Net-Zero emissions of greenhouse gasses.
Q ; Is this system Scalable
We would appreciate the opportunity to view it’s technical documentation
Batteries do not generate power, they store it. Power comes from nuclear,coal,natural gas,gasoline etc. Now you have huge mines for lithium and huge land fill of old batteries. Also wind and solar need fossil fuel back up to prevent brown outs or blackouts. Need hydrogen fuel tech or fusion?
There are a few concepts by which we can generate power from natural renewable resources.
But, the usual issue: we can’t store this energy for long or in larger scales.
Such devices give some sort of storage ability and multi-purpose use.
This, seems to be a better system than the others in the market, it all comes to how it`s implemented and utilized … and of course the cost.
Depending on how it´s implemented, this tech can be a part of the system for Hydrogen Gas production in smaller scales.
Where do you get “maximum output of 1.1 kWh” from the Toyota spec sheet? kWh is a unit of capacity (which in the Toyota spec and even title say 8.7kWh). What are trying to say here ? (I’m not sure why nearly every article on PV and similar technology can never seem to get units correct).
This is showing what the industry’s can produce and I think it great but they never tell us end user costs?
Sounds good to adapt to a solar system just wondered how much these units would cost
Solid state battery system out there .I won’t get a ev till 100% recyclable or these forever batteries.Government has to clamp down on oil companies gouging average person.Considering there is a glut of oil! !
Non of this is necessary.Food should not cost more then electronics !!!