Not so fast!
Tesla Powerwall is a nice product, and the idea is that it can store electricity when rates are low and power your home when rates are high. However, in Tennessee, this daily storage solution is not cost effective, yet. Our electric rates are low and do not vary by time of day. Rates would have to be considerably higher (like double or triple) at peak times for the Powerwall to save money.
The Powerwall could provide a good battery backup option for when the grid goes down, but Tesla needs to provide more information on installation and compatibility before solar installers like us can offer it as part of a solar/battery backup package.
LightWave Solar is currently taking steps to become a certified Powerwall installer.We will keep you posted as we determine how it can be incorporated with new and existing solar systems.