Toyota has developed a vehicle to home (V2H) mutual power supply system for plug-in hybrid and electric vehicles.

Toyota has developed a vehicle to home (V2H) mutual power supply system for plug-in hybrid and electric vehicles.

The system uses an AC100 V inverter to convert power stored in the vehicle's battery into AC power suitable for home use. The flow is regulated by a charging stand which actively communicates between the car and house.

According to Toyota, users could recharge the vehicle's battery at night (when electric rates are low) and then use that power to run the home's electrical outlets during the day when electric rates are more expensive. This sounds rather complex, but it would be automatically controlled via a home energy management system (HEMS). Furthermore, the system could be used in blackouts to provide power to the house.

Toyota will begin testing their V2H system later this year using Prius plug-in hybrids. The company estimates the model - with a fully-charged battery and a full tank of gas - could power an average Japanese household for four days.

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