Powerwall 3
Power Everything
Powerwall 3 is a fully integrated solar and battery system, designed to accelerate the transition to sustainable energy. Customers can receive whole-home backup, cost savings, and energy independence by producing and consuming their own energy while participating in grid services. Once installed, customers can manage their system using the Tesla App to customize system behavior to meet their energy goals.
Powerwall 3 achieves this by supporting up to 20 kW DC of solar and providing up to 11.5 kW AC of continuous power per unit. It has the ability to start heavy loads rated up to 185 LRA, meaning a single unit can support the power needs of most homes. Powerwall 3 expansions make it easier and more affordable to scale up customers’ systems to meet their current or future needs. Powerwall 3 is designed for fast and efficient installations, modular system expansion, and simple connection to any electrical service.
13.5 kWh
Battery Power
11.5 kW AC
Continuous Power Per Unit
10 Years Warranty
Industry Leading
Whole-Home Backup
Reliable Power
Power Your Home
Backup Power, Solar Storage, and Energy Independence
Home Backup
Solar Integration
Smart Management
Scalable Storage
Powerwall Specs & Information
Powerwall 3 is designed to provide reliable, high-capacity energy storage for your home, helping you maximize self-consumption, backup power, and energy independence.
- Usable Capacity: 13.5 kWh of energy storage
- Continuous Output: High-power design capable of supporting large household loads
- Inverter: Fully integrated solar and battery inverter for seamless energy management
- Backup Transition: Instant, automatic response during power outages
- Install Location: Approved for both indoor and outdoor installation
- Monitoring: Full system control and monitoring via the Tesla mobile app
- Warranty: 10-year warranty for peace of mind
- Expandable: Easily add additional Powerwalls to increase storage capacity
Best Performance
High efficiency DC-coupled design
More power
Larger solar systems
Better market participation
Most Durable
Performance in challenging climates
Single point of repair
Comprehensive labor warranty
Powerwall 3
Easiest to Install
Designed by installers for installers
Simple backup installations
DC-coupled battery expansions
Single app experience
Installation tools
Best Value
Time of use
Best in class warranty
Built-in solar inverter
DC or AC coupled
Gets better over time
Powerwall Comparison
Powerwall 1
Battery
High Voltage
With DCDC, BMS
Inverter
Third Party
Site Management
Third Party
Solar
Third Party DC
Installability
Very Difficult
Powerwall 2
Battery
Integrated
Inverter
Integrated
Site Management
Tesla Gateway
Solar
Third Party AC
Installability
Medium
Powerwall +
Battery
Integrated
Inverter
Integrated
Site Management
Integrated
Solar
Tesla AC
Installability
Easy
Powerwall 3
Battery
Integrated
Inverter
Integrated
Site Management
Integrated
Solar
Integrated DC
Installability
Very Easy
Fully Integrated Design
- Fewer “boxes”
- Less wiring
- Higher efficiency
- One commissioning experience
- One monitoring experience
Powerwall 3 Technical Specifications
Compliance Information
Mechanical Specifications
Powerwall 3 Expansion Technical Specifications
Battery Technical Specifications
Environmental Specifications
Compliance Information
Mechanical Specifications
Solar Shutdown Device Technical Specifications
The Solar Shutdown Device is a Mid-Circuit Interrupter (MCI) and is integral to the rapid shutdown (RSD) function required for rooftop PV systems in accordance with Article 690 of the NEC. When paired with Powerwall 3, solar array shutdown is initiated by an External System Shutdown Switch or the On/Off Enable switch located on Powerwall 3. Systems not subject to rapid shutdown requirements must still install one or more MCIs for functional purposes; see the Powerwall 3 installation manual for details.
Electrical Specifications
RSD Module Performance
Environmental Specifications
Mechanical Specifications
Compliance Information
UL 3741 PV Hazard Control (and PVRSA) Compatibility
Gateway 3
Tesla Gateway 3 controls connection to the grid in a Powerwall system, automatically detecting outages and providing seamless transition to backup power. It provides energy monitoring that is used by Powerwall for solar self-consumption, time-based control, and backup operation.
Performance Specifications
Environmental Specifications
Compliance Information
Mechanical Specifications
Backup Switch
The Tesla Backup Switch controls connection to the grid in a Powerwall system, and can be easily installed behind the utility meter or in a standalone meter panel downstream of the utility meter. The Backup Switch automatically detects grid outages, providing a seamless transition to backup power. It communicates directly with Powerwall, allowing home energy usage monitoring from any mobile device with the Tesla app.
Performance Specifications
Environmental Specifications
Compliance Information
Mechanical Specifications
Backup Gateway 2
Backup Gateway 2 controls connection to the grid when paired with Powerwall 3, automatically detecting outages and providing seamless transition to backup power. Backup Gateway 2 also provides energy metering for solar self-consumption, time-based control, and backup operation. In this system configuration, Powerwall 3 acts as the Site Controller, with the Backup Gateway 2 Site Controller disabled.
Performance Specifications
Environmental Specifications
Compliance Information
Mechanical Specifications
Powerwall 3 Example System Configurations
Powerwall 3 With Gateway 3
Whole Home Backup
Powerwall 3 With Backup Switch
Whole Home Backup
Powerwall 3 With Backup Gateway 2
Partial Home Backup
Powerwall 3 With Gateway 3
(1) Powerwall 3 With (3) Expansion Units
Powerwall 3 With Backup Switch
(4) Powerwall 3 Units With (3) Expansion Units (Maximum System Size)
Whole-Home Backup Protection
A single unit can provide whole-home backup protection during a grid outage.
One Unit Powers One Home
- Each unit has the storage capacity and efficiency to provide backup protection for the entire home.
Seamless Transition
- Units begin powering the home as soon as an outage is detected, while similar home batteries experience a delay of 2–5 seconds.
Automated Storage
- Units automatically charge to their maximum storage capacity when severe weather is forecast, ensuring maximum backup protection.
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