Tesla batteries integrate with solar to reliably capture, store and consume the renewable energy provided by the sun. Powerwall is an integrated battery system that stores your solar energy for backup protection, so when the grid goes down your power stays on. Powerwall is a home battery designed to store energy from solar or the grid, so you can use it anytime you want—at night or during an outage. A Powerwall system consists of at least one Powerwall battery and a Backup Gateway. The Backup Gateway provides energy management, metering and monitoring. Inside the Powerpack. Tesla has been building integrated battery systems for over 15 years. The same degree of expertise, quality control and technological. The Tesla Powerwall is a rechargeable lithium-ion battery stationary home energy storage product manufactured by Tesla Energy. Tesla Energy develops, builds, installs and sells solar energy generation systems, battery energy storage products, as well as other related products and. Just like any other battery storage option, a Tesla Powerwall captures and holds energy to be used by your home or business when needed later. What makes the. The Tesla Powerwall is a lithium-ion battery that's most often associated with storing energy generated by Tesla solar panels. However, you can. Beginning solar battery manufacturing in helped bring Tesla more powerfully into the electric battery business.