Tesla Powerwall 3 specs and output
The Tesla Powerwall 3 is the battery behind most Canadian home backup systems. Here are its real capacity and output figures and what they mean for powering your home.
| Usable capacity | 13.5 kWh |
|---|---|
| Continuous power output | 11.5 kW |
| Warranty | 10 years |
| Scalability | Expandable, stack multiple units |
| Backup | Whole-home or partial, automatic switchover |
| Control | Tesla app for monitoring, time-of-use, and Storm Watch |
Powerwall 3 FAQ
How many kWh is a Tesla Powerwall?
The Powerwall 3 holds 13.5 kWh of usable energy, over 30 percent more than the next battery in its class. You can stack multiple units for more capacity.
How many kW is the Powerwall 3 output?
The Powerwall 3 delivers 11.5 kW of continuous power output. That is enough to start and run heavy loads like a heat pump, air conditioner, or well pump during an outage.
Can a Tesla Powerwall be installed outside?
Yes. The Powerwall 3 is rated for indoor or outdoor installation and operates across a wide temperature range, which suits Canadian winters. Your installer picks the best location for performance and access.
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