Nissan Motor Corporation has begun testing a system to use electric vehicle technology to help power grids cope with peaks in demand. The energy management system has the potential to help ensure continuity of supply during natural disasters. It could also make electricity from renewable sources, like the wind or sun, more viable by storing power to be used during periods of high demand. Nissan is using Nissan LEAF electric vehicles (EV) and the "LEAF to Home" power supply system in the field tests.