What Is a Tesla Powerwall and How Much Does It Cost in the UK?


A Tesla Powerwall is a rechargeable home battery system that’s designed to bolster your home’s energy independence. As a result, customers who opt for a Powerwall system are provided with backup power; this is in addition to a reduced carbon footprint and savings on their electricity bills. Quite simply, Powerwall is an innovative solution that can be tailored to suit all manner of energy requirements. It boasts consistent on-demand energy, with the option to charge from solar or from the grid, meaning you’ll never be without the power you need.

What’s more, customers who have had their Powerwalls installed between 11 August 2023 and 31 December 2023 and registered them within this time are entitled to a £350 Tesla rebate, which is discussed in further detail below.

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Why Choose a Tesla Powerwall Battery Solution?

There are multiple reasons why you’d opt for a Tesla Powerwall, including perks like backup power, a self-powered home, time-based control, and monitoring. For instance, depending on the inverter, solar energy will continue to charge your Powerwall and power your home even during a power cut. Similarly, during the night, your home will be powered by clean energy that’s been generated from solar throughout the day. Additionally, you’re able to use less expensive solar and grid energy that has already been generated to avoid more expensive rate periods when your utility offers Time-of-Use rates. Lastly, the Tesla app allows you to monitor your Powerwall with ease.

How a Powerwall Works

The beauty of a Powerwall is that it works with or without solar and allows you to store energy for later use. Every Powerwall comprises a minimum of one Powerwall and a Backup Gateway, allowing for energy monitoring, metering, and management. This is made possible as the Backup Gateway learns and adapts to your energy use over time. Meanwhile, it receives over-the-air updates much like the rest of Tesla’s products, all while being able to manage as many as 10 Powerwalls.

Naturally, your Powerwall will be charged by solar during the day when the solar panels are producing more electricity than what’s being consumed by the home. This energy is then stored for when it’s needed. Since sunlight isn’t always predictable, additional power can also be pulled from the utility grid, meaning you’ll never be without power. In fact, even during power cuts, the stored solar power can be used.

Depending on your provider, your electricity rates may vary throughout the day. Fortunately, your Powerwall will charge when electricity rates are low and discharge when they’re high. This is in addition to the provision of backup power via grid outage detection, wherein the Powerwall becomes the home’s primary power source.

Where Can a Powerwall be Installed?

A Tesla Powerwall is able to withstand temperatures ranging from -20°C to 50°C, meaning it can be installed almost anywhere. Despite this, it has an optimal range of 10°C to 30°C, meaning charge or discharge rates can be limited outside of this range. Naturally, it’s best placed in a location that’s exposed to direct sunlight and not prone to humidity, flooding, and debris build-up.

How Much Is a Tesla Powerwall in the UK?

Currently, the Tesla Powerwall cost in the UK, including full installation, starts from £7500 for a standard system. Despite this, as certified Tesla Powerwall installers in the UK, we can tell you that the rate will depend on the complexity of the fitting. For a more accurate Tesla Powerwall UK price, please don’t hesitate to get in touch.

Is there a Tesla Powerwall Government Rebate?

No there isn’t, there is a Tesla Powerall rebate however, this is provided by Tesla, not the government.

Those who had their Powerwalls installed between 11 August and 31 December and registered them within this time are able to apply for a Tesla rebate. Quite simply, once your Powerwall(s) have been installed, connected to the internet, and registered, you can submit your rebate request in the Tesla app, wherein you’ll be entitled to £350 for each Powerwall you have installed. Upon confirmation, Tesla will transfer the funds of your eligible rebate to your nominated bank account.

It really is that simple!

Trust the Tesla Powerwall Installation Specialists

Here at BJC Electrical & Solar, we provide all manner of electrical services, including Tesla Powerwall installation. Whether you have queries about the Tesla Powerwall UK cost, the installation process, the Tesla Powerwall UK grant, or anything in between, we’re here to help.

As a Lincolnshire-based company, we offer a range of domestic and commercial services throughout Peterborough, Spalding, Bourne, and Stamford. So, if you fall within our catchment area and are interested in discovering what Tesla Powerwall solutions can do for your home, please don’t hesitate to get in touch.

We look forward to hearing from you and helping you save money on your energy bills and reduce your carbon footprint!

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