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“Vehicle to Home” Electricity Supply System

FUTURE TECHNOLOGY

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  • Environment Technologies
EVs as power sources for living
“Vehicle to Home” is a system that allows you to supply your home with the energy stored in a Nissan LEAF’s battery.

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By charging up a Nissan LEAF at night when there is more capacity for electrical supply and then using that electricity as the daytime power source for a household, the system helps alleviate consumption of power in peak periods when demand is highest. Further, it can also be leveraged as backup power supply for emergencies.

Technology Functionality
Household power can be supplied from a Nissan LEAF lithium-ion battery by installing a PCS (Power Control System) connected to the household’s distribution board, while plugged into the Nissan LEAF DC quick charge port. Further, through the PCS, a Nissan LEAF vehicle can also be charged from the household power supply.

Technology Configuration*
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The image shows the EV Power Station PCS made by Nichicon Corporation.

To use the electricity stored in the Nissan LEAF lithium-ion battery as household power it is necessary to convert the DC high-voltage electricity to AC 200V. And when charging the Nissan LEAF battery it is then necessary to convert AC 200V electricity to DC high-voltage power. The PCS handles the electrical conversion and control of the amount of power supply. The Nissan LEAF EV lithium-ion battery has large capacity and high reliability, meaning it can provide a stable power supply.

*Example given is for a typical Japanese household.



 

NISSAN TECHNOLOGY MAGAZINE