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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 up to four 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, enough to carry a typical home through the evening peak or a multi-hour outage. You can stack up to four 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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