Tesla Powerwall 2 (28kW) (2)


Tesla Powerwall is a fully-integrated AC battery system for residential or light commercial use. Its rechargeable lithium-ion battery pack provides energy storage for solar self-consumption, time-based control, and backup.
Powerwall’s electrical interface provides a simple connection to any home or building. Its revolutionary compact design achieves market-leading energy density and is easy to install, enabling owners to quickly realize the benefits of reliable, clean power.



AC Voltage (Nominal) 120/240 V
Feed-In Type Split Phase
Grid Frequency 60 Hz
Total Energy 14 kWh
Usable Energy 13.5 kWh
Real Power, max continuous 5 kW (charge and discharge)
Real Power, peak (10!s, off-grid/backup) 7 kW (charge and discharge)
Apparent Power, max continuous 5.8 kVA (charge and discharge)
Apparent Power, peak (10!s, off-grid/backup) 7.2 kVA (charge and discharge)
Maximum Supply Fault Current 10 kA
Maximum Output Fault Current 32 A
Overcurrent Protection Device 30 A
Imbalance for Split-Phase Loads 100%
Power Factor Output Range +/– 1.0 adjustable
Power Factor Range (full-rated power) +/– 0.85
Internal Battery DC Voltage 50 V
Round Trip Efficiency1,3 90%
Operating Temperature –20°C to 50°C (–4°F to 122°F)
Recommended Temperature 0°C to 30°C (32°F to 86°F)
Operating Humidity (RH) Up to 100%, condensing
Storage Conditions –20°C to 30°C (–4°F to 86°F)
Up to 95% RH, non-condensing
State of Energy (SoE): 25% initial
Maximum Elevation 3000 m (9843 ft)
Environment Indoor and outdoor rated
Enclosure Type NEMA 3R
Ingress Rating IP67 (Battery & Power Electronics)
IP56 (Wiring Compartment)
Wet Location Rating Yes
Noise Level @ 1m <! 40 dBA at 30°C (86°F)
Dimensions1 1150 mm x 755 mm x 147 mm
(45.3 in x 29.6 in x 5.75 in)
Weight1 114 kg (251.3 lbs)
Mounting options Floor or wall mount