Tesla Motors last year showed its first home-use battery designed to store energy from photovoltaic installations, allowing it to be used when it is most needed. Now a similar system is presented by Nissan, and it is called xStorage.
XStorage was developed in partnership with Eaton’s power company and is almost exactly the same as Tesla Powerwall, a household power supply. The kit can be connected to renewable energy sources, such as wind turbines or photovoltaic cells, and it will then be used to store the generated current, allowing it to be used when it stops transmitting, for example, or the sun is hiding behind the horizon. The battery can also be recharged from the mains during the second tariff, thereby lowering energy bills.
Interestingly, the xStorage Nissan will use old batteries from its electric vehicles.