While Tesla is known for its cars and Tesla Model S, Tesla Energy is the next big thing for the company. It includes Powerwall and Powerpack. If you're not up-to-date, Tesla Powerwall is a battery that can be attached to a wall and can store electricity that was previously generated by solar panels on the roof of your house. It has the capacity of 7 kWh at peak (people use around 30 kWh per day). This way, you are able to draw and store electricity from utility grid during night hours when costs are lower. Over time this will help you save large amounts of money.
It seems that whenever there's the slightest energy crisis or struggle, Tesla is there with their Powerwall battery in tow ready to be installed. Earlier this year, Tesla announced a partnership with communities in Vermont to install Powerwalls and Powerpacks. While rollouts in other areas have slowed a little since the second generation of Powerwalls launched, but local news in Vermont reported that over 100 residents have power throughout the state thanks to Tesla.