Last year, Mercedes started a program in Germany that works almost exactly the same way. Mercedes uses the automotive-grade batteries it’s developed for electric vehicles, which can withstand a lot of charging and discharging cycles. The company partnered with utilities and solar companies in Germany to store surplus energy for later use in the home.
This is exactly the same kind of system. When new customers hire Vivint Solar to install an array of solar cells on their roof, they can choose to add up to eight 2.5 kWh Mercedes batteries. The modular battery systems allows the homeowner to customize energy storage depending on how much energy is being captured and used.
The batteries work as a backup if the grid goes down, but they also allow users to make the most of their solar energy. The system can…