Power outages are simply a disaster in modern society. The lights go out, all household appliances stop working, and there is even no WiFi network. We can hardly imagine how to live in a world without electricity.

　　Musk’s new idea is to transform an ordinary home into a power plant, which sounds a bit weird.

　　As early as 2008, Musk established SolarCity's photovoltaic power generation project company, and then launched the Powerwall for household batteries in 2015. It can store solar energy during the day for use at night or later, providing uninterrupted power protection for the family while also saving peak electricity costs.

　　After the birth of the first generation of Powerwall, it attracted national attention, but the excessively expensive price discouraged ordinary users. Musk soon launched the Powerwall 2 again, the installed capacity reached 13.5kWh, and the sustained peak reached 5kW.

　　Powerwall is only an energy storage battery, and has nothing to do with a home power plant. The change occurred last month, and Musk also proposed the idea of a home power plant.

　　Musk's vision is to connect all Powerwall energy storage systems together to balance the instability and asymmetry of the decentralized power generation model. It can even integrate electricity into the grid, and can maintain the uninterrupted state of the grid when the grid fails.

　　Musk said: "Only 160 million Powerwalls are needed to cover the entire U.S. electricity consumption! Multiple Megapacks (large energy storage devices) combined with super energy storage devices can provide 6 hours of energy for every family in San Francisco. electricity."

　　However, Musk's grand vision has also been questioned. Some experts believe that it is very difficult to monitor and manage the influx of so-called "distributed energy resources", which may conflict with the long-term utility model.

　　At this stage, the family power plant plan is still in its infancy, and there is still a long way to go.