FINALLY! Anyone who has considered buying a backup power generator to cope with power instability could benefit from such a device (especially on a hybrid car where the vehicle could be refueled during a long power outage). The car also serves a useful purpose when it isn't needed as a power source. At best existing third party inverters only supply 120 volts at 15 amps from the car battery; an integrated solution with the car would be wonderful. Switches to remove the house from the grid are readily available (in Connecticut one is available that plugs in between the electric meter and the house and allows an external power source to be activated at any time).
This concept has been floating around for electric cars since the beginning. Only it was described as allowing the car's batteries to help power the grid (instead of an individual dwelling). Yes, there are issues about charge/discharge cycles of the batteries, but looking at this from an emergency or supplemental power backup perspective it's great. Now, if you combine this with a grid tie solar system, you could effectively provide a residence with electricity for extended periods of grid power outage. The price is in line with what a grid tie solar inverter costs. (I know because I have one).
This device is a big sell plus, and should be made available in the US.
This has interesting emergency preparedness aspects to it as well--at least may be extended this way. Move the vehicles to where power has been lost due to weather or earthquake or something and provide power until local power can be restored.
This is an insanely good marketing gimic! Most smart meters change rates with time so that it could be comparable to installing solar panels! (Neither of which would offer particularly good prospects of recovering your money). Nonetheless, I like it.
At $4,153 (even after subsidies) I wonder how many will be opting for this in other countries' markets. In Japan, I can understand the need with many reactors going off-line. Seems like this is a nice to have gadget when other alternates (like wind/solar) are not viable.
What "existing UPS system"? When in the "supply mode", the output is AC and intended to the home's distribution panel. It would be possible to wedge another UPS in there, at the cost of increased inefficiency but I doubt the average Japanese home already has one.
Hi, Chanj. According to Nissan, the system can run on various operating modes and has a timer function which can be controlled with an LCD touch panel. Electricity is stored or supplied automatically in accordance with a household's electricity capacity and consumption.