The Tesla Powerwall 2 is an AC coupled battery backup system. This means it can be retro fitted to existing solar power systems or can also be installed with new solar power systems.
The Tesla Powerwall 2 uses Lithium-ion technology. The battery comes with a 10 year manufacturer’s warranty and offers 5kw of output catering for most residential homes and multiple batteries can be daisy-changed together for commercial usage. Greener Housing Solutions installs the Tesla units with additional ‘backup’ component as the Tesla Powerwall 2 can be designed to provide power during a blackout (when the grid goes down).
The Powerwall 2 is an AC coupled battery backup system. This means it can be retro fitted to existing solar power systems. It is a single-phase battery backup unit but can be also attached to a 3-phase set up using CT clamps.
How it works on a single phase home with a single phase solar power system backing up your whole house
3 Phase Home with a 3 phase inverter with a Tesla Powerwall 2
What are CT Clamps? CT Clamps are sensors they are basically used as a monitoring tool.
When you have a 3-phase home with a 3-phase solar power system the Tesla will be connected to one of your phases and CT clamps would be put on the other phases so that the monitoring can see over the 3 phases but it will only backup the one phase it is attached to.
The Tesla App which will show you what you are pulling from the gird (on 3 phase homes the CT Clamps are what monitors this). What your solar is producing and what your home is taking