Energy Support

How Powerwall Works

Powerwall gives you the ability to store energy for later use and works with solar to provide key security and financial benefits. Each Powerwall system is equipped with energy monitoring, metering and smart controls for owner customization using the Tesla app. The system learns and adapts to your energy use over time and receives over-the-air updates to add new features and enhance existing ones.

Powerwall & Powerwall+

Powerwall is a rechargeable home battery system that is installed with solar. A Powerwall system can be composed of up to 10 Powerwalls, including a combination of Powerwall+ and traditional Powerwalls. A Powerwall+ contains additional features focusing on solar integration that enable cleaner installations with less equipment.

Integrated revenue-grade energy metering can help you accurately monitor your solar production and home energy consumption for precise, real-time insight to your home energy, claim credit for clean energy incentives and be ready to join future virtual power plants. Powerwall+ is able to intelligently power heavy equipment, and direct solar integration improves solar recharging during power outages, resulting in a better off-grid experience than ever before.

 
  POWERWALL POWERWALL+
  Powerwall 2 Powerwall+
ON-GRID POWER 5.8kW continuous 7.6kW / 5.8kW continuous*
BACKUP POWER

5.8kW continuous
10kW peak

9.6kW / 7kW continuous*
22kW / 10kW peak*

BACKUP LOAD START CAPABILITY 106A LRA for each Powerwall 118A LRA for each Powerwall+
STORAGE CAPACITY 13.5kWh 13.5kWh
SOLAR INTEGRATION Compatible with all grid-tied solar inverters Integrated solar with 4 MPPTs
COMMUNICATION Wi-Fi, Ethernet, Cellular LTE/4G with Gateway 2 Integrated Wi-Fi, Ethernet, Cellular LTE/4G
MONITORING Home loads, battery, revenue accuracy (+/- 2%) with Gateway 2 for solar Home loads, battery, revenue grade (+/- 0.5%) for solar
GRID DISCONNECT Compatible with Gateway 2 and Backup Switch Compatible with Gateway 2 and Backup Switch
BACKUP PERFORMANCE Seamless backup transition Seamless backup transition with enhanced off-grid performance
ON-GRID POWER

POWERWALL
5.8kW continuous

POWERWALL+
7.6kW / 5.8 kW continuous*

BACKUP POWER

POWERWALL
5.8 kW continuous
10 kW peak

POWERWALL+
9.6kW / 7kW continuous*
22kW / 10 kW peak*

BACKUP LOAD START CAPABILITY

POWERWALL
106A LRA for each Powerwall

POWERWALL+
118A LRA for each Powerwall+

STORAGE CAPACITY

POWERWALL
13.5kWh

POWERWALL+
13.5kWh

SOLAR INTEGRATION

POWERWALL
Compatible with all grid-tied solar inverters

POWERWALL+
Integrated solar with 4 MPPTs

COMMUNICATION

POWERWALL
Wi-Fi, Ethernet, Cellular LTE/4G with Gateway 2

POWERWALL+
Integrated Wi-Fi, Ethernet, Cellular LTE/4G

MONITORING

POWERWALL
Home loads, battery, revenue accuracy (+/- 2%) with Gateway 2 for solar

POWERWALL+
Home loads, battery, revenue grade (+/- 0.5%) for solar

GRID DISCONNECT

POWERWALL
Compatible with Gateway 2 and Backup Switch

POWERWALL+
Compatible with Gateway 2 and Backup Switch

BACKUP PERFORMANCE

POWERWALL
Seamless backup transition

POWERWALL+
Seamless backup transition with enhanced off-grid performance

*Full sun / no sun

With Solar

When the sun rises, solar begins powering the home. When additional power is required for the home, the home can pull it from the utility grid.

Powerwall is charged by solar during the day, when solar panels are producing more electricity than the home is consuming. Powerwall then stores that energy until the home needs it, such as when solar is no longer producing at night, or when the utility grid is offline during a power outage.

When the sun comes out the next day, solar recharges Powerwall so you have a cycle of clean, renewable energy.

Without Solar

If your electricity rates vary throughout the day, Powerwall can charge when your utility’s electricity costs are low and discharge when electricity costs are high, generating automatic savings. Powerwall will also provide seamless backup power by detecting grid outages and automatically becoming the home's main power source.