[freebeard]

https://www.tesla.com › powerwall
Powerwall | Tesla
Powerwall is an integrated battery system that stores your solar energy for backup protection, so when the grid goes down your power stays on. Your system detects outages and automatically recharges with sunlight to keep your appliances running for days. Security: Backup Protection. Order Now. Every solar purchase includes Powerwall, a compact home battery that reduces your reliance on the grid by storing your solar energy for use when the sun isn't shining.

At 80lb it's more comparable to an Ecoflo Delta/Bluetti or equivalent.