Tesla Powerwall 3 Review:
A Complete Home Energy Solution

13.5 kWh Storage Capacity with Integrated Solar Inverter for Seamless Backup Power

Tesla Powerwall 3 Powerwall 3 Accesories

*Tesla Powerwall only available with Tesla Certified Installers

Powerwall 3: Complete Home Energy Storage with Built-in Solar Inverter

The Tesla Powerwall 3 is a residential energy storage system that combines a 13.5 kWh battery with an integrated solar inverter in a compact unit. Designed for whole-home backup capability, this all-in-one system delivers up to 11.5 kW of continuous power, enough to support most household needs including heavy-load appliances.

Whether paired with solar panels or operating as a standalone backup solution, the Powerwall 3 offers seamless power transition during outages, intelligent storm protection, and flexible energy management options. Its built-in solar inverter streamlines installation, reduces system complexity, and maximizes overall efficiency with 97.5% solar-to-grid conversion."

Tesla Powerwall 3: Key Features & Technical Specifications

Integrated Solar Inverter

The Powerwall 3's built-in solar inverter simplifies system design with six independent Maximum Power Point Trackers (MPPTs), supporting up to 20 kW of solar input. This integrated approach delivers 97.5% solar-to-grid efficiency while reducing complexity and hardware requirements.

Whole-Home Backup Capabilities

With 11.5 kW of continuous power output and 185 LRA motor start capability, the Powerwall 3 can support your entire home during outages. The system transitions to backup power instantly, ensuring uninterrupted operation of essential appliances and home systems.

Storm Watch Protection

The intelligent Storm Watch feature automatically prepares for severe weather by maximizing battery charge when storms are forecast. The system's NEMA 3R enclosure and IP67 rating provide robust protection against harsh environmental conditions, maintaining operation from -4°F to 122°F.

Multiple Operating Modes

Customize your energy usage with flexible operating modes including Time-Based Control for variable rate plans, Self-Powered for maximum solar utilization, and Backup-Only for dedicated outage protection. The Tesla app provides intuitive control over all system functions.

Power Output & Capacity

Continuous Power: 11.5 kW AC
Energy Capacity: 13.5 kWh AC
Solar Input: Up to 20 kW DC
Peak Efficiency: 97.5% solar-to-grid

Installation Requirements

Indoor/Outdoor Rated
Operating Temperature: -4°F to 122°F
Minimum Side Clearance: 4 inches
Internet Connectivity: Wi-Fi, Ethernet, or Cellular

Dimensions & Installation

Height: 43.5 inches (1105 mm)
Width: 24 inches (609 mm)
Depth: 7.6 inches (193 mm)
Weight: 287 lbs (130 kg)

System Compatibility

Grid Type: Split Phase 120/240V
Frequency: 60 Hz
Gateway Options: Gateway 3, Backup Switch, or Backup Gateway 2

Powerwall 3 Compatible System Components

The Powerwall 3 ecosystem includes several key components that work together to deliver reliable home energy storage and backup power. From the comprehensive Backup Gateway 3 to the streamlined Backup Switch, each component serves a specific role in creating a complete home energy solution. Understanding these components helps in planning your ideal system configuration, whether you're installing a single Powerwall or designing a multi-unit installation.