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Powerwall
Home battery backup and load shifting
Capacity
13.5 kWh
Continuous output
5 kW
Peak output
10 kW
Price
From $8,500 installed
Overview
Powerwall stores solar or off-peak grid power and switches in automatically the instant an outage hits — no generator, no manual transfer switch, no gap in coverage. Stack multiple units for whole-home backup, or run one to shift usage away from expensive peak-rate hours.
What sets it apart
Instant, automatic backup
Powerwall detects an outage and takes the home off-grid in under a second — lights and fridge never notice the switch.
Off-peak load shifting
Charges from solar or cheap overnight grid power, then covers the home through expensive peak-rate hours automatically.
Stackable capacity
Multiple Powerwalls pool together for whole-home coverage, all managed from a single app.
Full specifications
Specifications
Capacity
13.5 kWh
Continuous output
5 kW
Peak output
10 kW
Round-trip efficiency
97.5%
Switchover time
<1 sec
Warranty
10 years
Gallery
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