Energy Storage for a Sustainable Home
Powerwall is a home battery that charges using electricity generated from solar panels, or when utility rates are low, and powers your home in the evening. It also fortifies your home against power outages by providing a backup electricity supply. Automated, compact and simple to install, Powerwall offers independence from the utility grid and the security of an emergency backup.
Solar Powered Day and Night
The average home uses more electricity in the morning and evening than during the day when solar energy is plentiful. Without a home battery, excess solar energy is often sold to the power company and purchased back in the evening. This mismatch adds demand on power plants and increases carbon emissions. Powerwall bridges this gap between renewable energy supply and demand by making your home’s solar energy available to you when you need it.
Avoid Paying Peak Rates Power companies often charge a higher price for electricity during peak evening hours than overnight when demand is low. Powerwall can store electricity when rates are low and power your home when rates are high.
Energy Security Powerwall automatically switches to battery power in the event of an electric company outage, bringing peace of mind to those who live in areas prone to storms or unreliable utility grids.
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.
Powerwall comes in 10 kWh weekly cycle and 7 kWh daily cycle models. Both are guaranteed for ten years and are sufficient to power most homes during peak evening hours. Multiple batteries may be installed together for homes with greater energy need, up to 90 kWh total for the 10 kWh battery and 63 kWh total for the 7 kWh battery.
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
- Laptop – 0.05 kWh /hr
- Refrigerator – 1.6 kWh /day
- Clothes Washer – 2.3 kWh each use
- Clothes Dryer – 3.3 kWh each use
How it Works
Home solar installations consist of a solar panel, an electrical inverter, and now a home battery to store surplus solar energy for later use.
- Solar panel Installed in an array on your roof, solar panels convert sunlight into electricity.
- Home battery Powerwall stores surplus electricity generated from solar panels during the day or from the utility grid when rates are low.
- Inverter Converts direct current electricity from solar panels or a home battery into the alternating current used by your home’s lights, appliances and devices.
Contained within Powerwall’s outdoor-rated enclosure is a rechargeable lithium-ion battery, a liquid thermal management system, a battery management system and a smart DC-DC converter for controlling power flow.
Powerwall Inverter Electrical Box
- Technology Wall mounted, rechargeable lithium ion battery with liquid thermal control.
- Models 10 kWh $3,500 For backup applications, 7 kWh $3,000 For daily cycle applications
- Warranty 10 years
- Efficiency 92% round-trip DC efficiency
- Power 2.0 kW continuous, 3.3 kW peak
- Voltage 350 – 450 volts
- Current 5.8 amp nominal, 8.6 amp peak output
- Compatibility Single phase and three phase utility grid compatible.
- Operating Temperature -4°F to 110°F / -20°C to 43°C
- Enclosure Rated for indoor and outdoor installation.
- Installation Requires installation by a trained electrician. DC-AC inverter not included.
- Weight 220 lbs / 100 kg
- Dimensions 51.2” x 33.9” x 7.1”
1300 mm x 860 mm x 180 mm
- Certification NRTL listed to UL standards