What does Powerwall Backup

Tesla installation crews will check if large loads can or cannot be included in backup on the day of installation. Refer to the information below to see what is compatible for backup depending on the number of Powerwalls installed. If you have further questions, chat with a sales representative.

Main electrical panel:
Lights
Electrical outlets
120V small appliances
Additional large appliances:
No large appliances    1x Compatible central air conditioner
1x Electrical range/stove/oven
1x Compatible well pump
1x Tesla EV charging
2x Compatible central air conditioners
1x Electrical range/stove/oven
1x Compatible well pump
1x Tesla/non-Tesla EV charging
1x Electric dryer
1x Electric water heater
1x Pool equipment
Main electrical panel:
Lights
Electrical outlets
120V small appliances
Lights
Electrical outlets
120V small appliances
Lights
Electrical outlets
120V small appliances
Additional large appliances:
No large appliances    1x Compatible central air conditioner
1x Electrical range/stove/oven
1x Compatible well pump
1x Tesla EV charging
2x Compatible central air conditioners
1x Electrical range/stove/oven
1x Compatible well pump
1x Tesla/non-Tesla EV charging
1x Electric dryer
1x Electric water heater
1x Pool equipment

Compatible Central Air Conditioners

AC HVAC label

Check the Locked Rotor Amp rating (LRA) which can be found on the nameplate of your air conditioner. If the LRA is blank, labeled with ‘N/A’ or is equal or less than the Running Load Amps (RLA), your air conditioner is variable speed and can be backed up with a minimum of 2 Powerwalls.

If your air conditioner does have a LRA listed, you will need to identify the compressor type. The compressor can be found inside the condenser typically located outside of your home.

Compressor

If your air conditioner does have a LRA listed, you will need to identify the compressor type. The compressor can be found inside the condenser typically located outside of your home.

Compressor

Scroll Compressor

Scroll Compressor
  • Identified by a tall, skinny body
  • A minimum of 2 Powerwalls to backup
  • LRA must be within the following range for compatibility
LRA Rating Number of Powerwalls
<139 2
140+ 3+

Reciprocating Compressor

Reciprocating Compressor
  • Identified by a short, wide body
  • A minimum of 2 Powerwalls to backup
  • LRA must be within the following range for compatibility
LRA Rating Number of Powerwalls
<55 2
56-83 3
84-111 4
112-139 5
140+ 6+

Compatible Well Pumps

Well pumps with a breaker rating equal to or less than 20A and less than 1 horsepower are compatible for backup with a minimum of 2 Powerwalls.

Electric Vehicle Charging

Tesla vehicles are compatible for backup with a minimum of 2 Powerwalls. Other electric vehicle are compatible for backup with a minimum of 3 Powerwalls.

If including more than 1 electrical vehicle in backup, additional Powerwalls are recommended in order to support the high demand from the EV charger.