Tesla Powerwall Battery Storage

 Meet Powerwall, your home battery



Tesla powerwall

100%                                                          0%

Self Powered                                                                                                     Grid Powered

On a typical day, Powerwall and solar will meet all of your homes energy needs.

A self-powered home combines solar energy and Powerwall to independently power your home day and night. During the day, solar panels may produce more energy than your home uses. Powerwall stores that excess solar energy and makes it available on demand, even after the sun has set. Through the Tesla app, you will have full visibility into your self-powered home.

powerwall app


7+ Days continuous power during an outage

When the grid goes down solar energy will continue to power your home and charge your powerwall.

How does Powerwall work during an outage?

Powerwall can detect an outage, disconnect from the grid, and automatically restore power to your home in a fraction of a second. You will not even notice that the power went out. Your lights and appliances will continue to run without interruption. If you have solar and Powerwall, then solar energy will continue to power your home and recharge Powerwall. Without Powerwall, solar will shut down during an outage.

Tesla Powerwall 3 : What Is In Store For The Next Level Of Energy Storage?

Tesla has started to take orders for their 3rd generation of Powerwall, Powerwall 3 in the US and we are expecting  in the UK late 2024.

Here’s what we know so far about the Powerwall 3 and what we can expect when it goes on sale in the UK.

How Does A Tesla Powerwall Work?

The Tesla Powerwall is a rechargeable home battery system designed to maximise your home’s energy independence from the grid. A Powerwall can work with or without solar PV. Every Powerwall system comprises a minimum of one Powerwall and a Backup Gateway. The Backup Gateway offers energy monitoring, metering, and system management. It learns and adjusts to your energy consumption patterns over time, receives updates wirelessly, similar to other Tesla products, and can oversee up to ten Powerwalls.

Integrating a Tesla Powerwall with a well designed solar PV system will increase your home’s energy self-sufficiency and reduce your reliance on fossil fuels.

The Difference Between POWERWALL 3 and POWERWALL 2


                     Powerwall 2      Powerwall 3        

Energy Capacity 13.5 kWh 13.5 kWh
Warranty 10 years 10 years
On-Grid Power 5.8 kVA continuous 11.5k kW continuous
Backup Power 10 kW peak 11.5k kW continuous
Size L x W x D 45.3 in x 29.6 in x 5.75 in 43.25 in x 24 in x 7.6 in
Weight 251.3 lbs 287 lbs
Includes Inverter

Available Now late 2024


The biggest difference with the Powerwall 3 compared to the Powerwall 2 is a higher power output of 11.5KW continuous and an integrated solar inverter.

What Does This Mean For Homeowners?

The higher power output of 11.5KW which is nearly a 20% increase of power output compared to Powerwall 2 enables powering of high load items. Items with high energy demand, such as electric vehicle chargers, electric showers, and heat pumps enable you to optimise the utilisation of stored energy, enhancing your independence from the grid. Solar and battery power outputs may be constrained by National Grid limitations, which differs across difference grid connections. The distinctive flexibility of Powerwall 3 allows you to adjust the power output, ensuring your can maximise your grid connection’s allocated power.

The Powerwall 3 provides flexibility to charge during daylight hours and depend on stored battery power at night, providing a comprehensive 24-hour solution for situations when the sun sets and the grid is without power.

Curious about your grid connection limitations? Sundial Solar Solar will handle the application to your Distribution Network Operator (DNO) on your behalf prior to installation and we will provide guidance on your available options.

While the Powerwall 2 is equipped with an integrated AC controller, making it an ideal choice for homeowners seeking a standalone battery system or looking to retrofit a battery storage system, the most significant development with the launch of the Powerwall 3 is an integrated hybrid inverter. With a integrated hybrid inverter the Powerwall 3 can manage input from both your solar panels and your battery. With the capability to handle up to six solar inputs, it facilities a highly efficient conversion of solar energy to the grid. This makes it an excellent solution for homeowners intending to install a new solar panel system.

Overall, the Tesla Powerwall 3 is a powerful and efficient home battery storage system that can help you reduce your reliance on the grid, save money on your electricity bill, and increase your home’s energy independence.


Click on the link to download thePowerwall brochure

For a free no obligation quotation contact us via email or phone our contact details are on the contact us page 


Why Choose Us

  • All enquiries handled by the owners
  • No pushy sales team
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  • Experts in clean energy
  • Solutions designed around your requirements
  • Industry recognised and accredited
  • 10 years operating around the South West region
  • Wide range of domestic and commercial solutions