In Germany the Mercedes home battery stores energy from solar panels and when the power is used in the home it s converted to AC power via the inverter.
Unlike home batteries in the U.S., where the market is also just starting and where Tesla s Powerwall gets all the attention, home batteries in Germany don t draw energy from the conventional electric power grid.
Not only is the Tesla Powerwall more powerful, it s also less expensive, priced at $3,000 for the bare unit and with a final cost including installation and inverter often amounting to more than $7,000, according to Tech Insider.
You can put it on the ground, so you don t have to wall mount it, and it has very easy wiring.
Nissan expects to ship the xStorage battery system in September, according to Ars Technica.
Orbison expects to ship by this summer.