After months of development Nissan Motor Company will be launching a vehicle-to-house power supply system in tandem with its EV Power Station charging system.

The power transfer system enables electricity stored in the electric vehicle's high-capacity lithium-ion batteries to be sent to a typical home by connecting the vehicle to the house's electricity distribution panel.

The batteries can store up to 24 kilowatt-hours of electricity, which is sufficient to power an average Japanese household for about two days.

Meanwhile, with the size of an external air-conditioning unit, the EV Power Station developed by Nissan in partnership with power supply provider Nichicon uses a quick-charging method that can charge the Leaf in four hours, half the time required in typical chargers.

It will be available to all current Nissan Leaf owners in Japan for about 330,000 yen (US$4,200) with Japanese government subsidies taken into account.

Nissan says the technology will help encourage Nissan Leaf owners to charge their cars with electricity generated during the night, when demand is low, or with power sourced from solar panels.