Energy Storage for a Sustainable Home
Powerwall is a home battery that changes using electricity generated from solar panels, or when utility rates are low, and powers your home in the evening. Automated, compact and simple to install, Powerwall enables you to maximize self-consumption of solar power generation.
Tesla home batteries maximize the usefulness of your solar panels and offer a variety of backup electricity supply solutions. You can even go off the grid.
Solar electricity at night
Powerwall stores electricity generated by solar panels during the day and makes it available to your home in the evening.
This bridges the gap between peak solar and peak demand, allowing you to use your photons when you need them.
Go net zero
Combine solar panels and one or more Powerwall home batteries to power your home independently from the utility grid.
A net zero energy rating means that your home produces as much energy as it consumes, but is still connected to the utility grid for periods of high demand.
In the event of a utility outage, Powerwall can power your entire home or select appliances with an uninterrupted supply of electricity.
When installed along with solar panels, Powerwall will allow your home to use solar generated electricity during a utility outage.
Current generation home batteries are bulky, expensive to install and expensive to maintain. In contrast, Powerwall's lithium ion battery inherits Tesla's proven automotive battery technology to power your home safely and economically. Completely automated, it installs easily and requires no maintenance.
How it Works
A typical Powerwall system includes solar panels, an inverter for converting electricity between direct current and alternating current, a meter for measuring battery charge, and in backup applications, a secondary circuit that powers key appliances. Which components are required depends on how you use your home battery.
Panels convert sunlight into
electricity that charges Powerwall
and powers your home during the
day. Without solar, Powerwall can
reduce time of use power bills by
strategically shifting energy
The home battery is charged with
electricity generated by solar panels
or from the utility grid.
The inverter converts direct current
electricity from solar panels, the grid
and Powerwall into the alternating
current used by your home's lights,
appliances and devices.
All Powerwall installations require a
compatible inverter. To maximize
solar consumption, a meter is also
installed to measure solar production
and home energy use.
Electricity from the inverter is sent to your
home's electrical panel. For applications
without solar, and night time, electricity
generated by the power company is sent
from the electrical panel to the inverter
to charge the Powerwall.
Backup panel and switch
Some backup installations may require a
secondary electrical panel containing the
critical appliances and outlets you wish to
back up. An electrical switch automatically
activates the backup panel during a power
When installed with solar, this switch can keep
your solar producing during an outage.
Backup is an optional feature when installing
to maximize solar or shift energy consumption.
Each Powerwall has a 6.4 kWh energy storage capacity, sufficient to power most homes during the evening using electricity generated by solar panels during the day. Multiple batteries may be installed together for homes with greater energy needs.
How much electricity does my home use?
Common household electricity consumption.
|Flat Screen TV
0.1 kWh /hr
|Lights Per Room
0.1 kWh /hr
0.05 kWh /hr
1.6 kWh /day
2.3 kWh each use
3.3 kWh each use
|Tecnology||Wall mounted, rechargeable lithium ion battery with liquid thermal control.|
|Model||6.4 kWh For daily cycle applications|
|Eficiency||92.5% round-trip DC efficiency|
|Depth of Discharge||100 %|
|Voltage||350 – 450 volts|
|Compatibility||Single phase and three phase utility grid compatible.|
|Operating Temperature||-4°F to 122°F / -20°C to 50°C|
|Enclosure||Rated for indoor and outdoor installation.|
|Installation||Requires installation by a trained electrician. DC-AC inverter not included.|
|Dimensions||1302 mm x 862 mm x 183 mm|
|Certification||UL 9540, UL 1642, UL 1973
AC156 seismic certification
IEEE 693- 2005 seismic certification
FCC Part 15 Class B