Tesla Powerwall 3 is a compact LFP (Lithium Iron Phosphate) home battery that store energy generated by solar or from the grid. You can use this energy to power the devices and appliances in your home day and night, even during outages. With customisable power modes, you can optimise your stored energy for outage protection, electricity bill savings and more.

Powerwall gives you the ability to store energy for later use and works with or without solar.  Each Powerwall system includes at least one Powerwall and a Backup Gateway, which provides energy monitoring, metering, and management for the system. The Backup Gateway allows you to ‘island’ yourself from the grid either during a power outage or manually through the app. It can provide 32A of output power which allows running of all household appliances including Heat Pumps during a power outage too. The Backup Gateway also learns and adapts to your energy use over time and will continue to receive over-the-air updates allowing Powerwall to keep improving after it is installed.

The Tesla Powerwall 3 has a total energy capacity of 13.5 kilowatt-hours (kWh). This capacity is sufficient to power essential appliances and provide backup power during outages for most homes, however for homes with a higher electricity demand you can add up to three 13.5kWh expansion kits to your system. Powerwall has the capability to charge and discharge simultaneously, meaning it can keep itself topped up during off-peak tariff hours whilst it powers your home. 

Powerwall is charged by solar during the day, when solar panels are producing more electricity than the home is consuming. Powerwall then stores that energy until the home needs it, such as when solar is no longer producing at night, or when the utility grid is offline during a power outage. 

The next day when the sun comes out, solar recharges Powerwall so you have a cycle of clean, renewable energy. 

If your electricity rates vary throughout the day, Powerwall will charge when electricity costs are low and discharge when electricity costs are high, generating automatic savings.  Powerwall will also provide backup power by detecting grid outages and automatically becoming the home's main power source.

Depending on your electrical set-up, Powerwall will backup all your appliances (whole home backup) or essential loads (partial home backup). Powerwall provides up to 11.04kW power, subject to DNO approval, which is typically sufficient to provide whole home backup during a grid outage.

With partial home backup, you can select which loads are essential such as lights and outlets. If your home runs on a three-phase power supply, Powerwall will support the appliances on a single phase that it is installed upon.

While one Powerwall is sufficient to power a typical home in Great Britain, multiple Powerwall systems will allow you to back up more loads and keep your home powered during longer outages—with increased power output and overall capacity.  If the 11.04kW output is sufficient but you want to ensure your home stays powered for longer you can add additional expanion kits to your Powerwall, each with an additional 13.5kWh of storage.  Powerwall systems can be mounted side-by-side on a wall or floor or stacked front-to-back on the floor.

The duration of backup power provided by the Powerwall 3 during an outage depends on various factors, including the power demand of the home, the amount of stored energy in the Powerwall, and the energy consumption during the outage. For most homes, the Powerwall 3 with no expansion kit can provide several hours of backup power. Pair with solar and recharge with sunlight to keep your appliances running for days.

A typical LED downlight will draw around 15W to run. If you had 5 per room over 5 rooms in your home, that would be 375W of energy. Keeping all these lights on for 1 hour during a power outage would draw 0.375kWh of energy. Assuming your Powerwall was 100% charged at the time of the power outage, Powerwall’s emergency backup power would keep the lights on for 1.5 days.

While the Powerwall 3 is primarily designed for grid-tied systems, it can also be used with off-grid systems when combined with other components such as solar panels, inverters, and charge controllers. Off-grid setups require careful system design to meet energy demand and provide sufficient storage capacity.

Your Tesla Powerwall system offers a 10 year Tesla End User Warranty provided a physical Ethernet connection or Wi-Fi connection exists between the Tesla Powerwall and the property router. This will enable Tesla to undertake automatic monitoring and maintenance of the unit remotely. The Tesla Powerwall, once installed, will have 2 years labour and workmanship Warranty supported by The Natural Energy Company.

Powerwall easily endures outdoor temperatures ranging from -20°C to 50°C* thanks to its unique onboard thermal management system, and is IP67 rated, making it one of the only batteries on the market that can be installed outdoors.  Powerwall’s Heat Mode maintains optimal cell temperatures, preheating the battery cells when temperatures drop, ensuring consistent performance even in cold climates.
Powerwall 3 is also flood resistant up to 0.6m to ensure your home keeps running during adverse weather.

Safety is one of our biggest priorities for all our installations and is one of the reasons we only offer Powerwall.  For added reassurance, the Tesla Powerwall comes encased in a fireproof box that can contain a fire for 30 minutes allowing adequate time to safely escape.  Many home insurers will are unable to offer cover if you have battery storage within your home.  Powerwall would be stored either on an external wall, or within your garage provided it is separate from the home or fire lined with smoke and heat alarms.

To optimise performance, avoid installing Powerwall in locations exposed to direct sunlight or subject to extreme temperatures.  When Powerwall is exposed to temperatures outside of its optimal range of 10°C to 30°C, it may limit charge or discharge power to improve battery lifespan.  In order to maintain proper ventilation, Powerwall should be kept clear of debris such as leaves and dense bush.  At your survey we will work with you to agree the best location for your new Powerwall.

Yes, the Tesla Powerwall 3 can be retrofitted into an existing solar power system. It can be integrated with your current solar panels and inverter to store excess energy generated during the day for later use. Alternatively for optimal efficiency you can rewire your existing solar panels to Powerwall 3’s onboard inverter. The Powerwall 3 works seamlessly with both new and existing solar installations.  It Is worth noting that if your current solar array benefits from a Feed in Tariff (FiT) we cannot alter the existing solar and inverter. In these circumstances we can offer Powerwall 3 as an AC coupled battery for your home.

The Tesla Powerwall 3 requires minimal maintenance. It is designed for long-term reliability and performance. Regular software updates can be performed over-the-air, ensuring the system remains up to date with the latest features and improvements. Additionally, basic visual inspections to ensure proper ventilation and cleanliness are recommended.

Time-based control is a Tesla unique feature which allows you to connect to a tariff benefitting from off-peak tariffs. With Solar PV you want to make sure you capture as much energy as possible at time of generation. This is either by the house using it, or your battery storing it. If the house isn’t needing all the energy, and battery is full, the energy will go back to the grid. You may get paid a small amount for this, but it will never be equal to what it costs to import the energy. Time-based control knows what you use daily, when you use it, and how you use it.

One further step is that Powerwall knows the local weather, for your location, 24 hours ahead. This means Powerwall can predict how much energy you will need to charge off- peak, to ensure when the solar comes on, it doesn’t fill up your battery and start exporting. This is a totally unique and game changing feature which takes away the battery storage element and turns Powerwall into an energy management system for your home. This is the same method Storm Watch uses to determine when to charge up fully in case you have a power failure.

We’re very lucky to have held this status over the last couple of years, something we are all very proud of. Our company exclusively offers Powerwall, installs them to a high standard, supports our customers, and shares sustainability goals with Tesla. All this means we can offer the best possible product, at the highest standard installation, for the best possible price.

Over the years installing Powerwall 2 and Powerwall 3, the number of successful installs and the feedback form our customers has resulted in Tesla awarding us with Premium Installer status.

With a 13.5kW battery, the Tesla Powerwall is one of the larger batteries on the market which creates more room to save your energy or top up that cheaper energy. While this is a definite advantage of having a Tesla Powerwall, many of its benefits are not contained in its box but rather in what we like to call the brain of the Tesla Powerwall - the Gateway. Along with the ability to top up and learn how you use your energy; the Tesla Powerwall also has the Storm Watch feature. This is quite clever and keeps an eye on the weather for you. If there is a storm approaching, then your Tesla Powerwall will ensure you are fully charged in the event of a power cut and keep your electricity flowing through your whole home.

We believe that there is no comparison of the Tesla Powerwall with any other batteries that are currently on the market based on ways to save money, control your energy usage and, the most important things, safety. We have exclusively partnered with Tesla because we believe in the product, we trust it, and it works.

A Distribution Network Operator (Or DNO) is a company licensed to distribute electricity in the UK. These companies own and operate the system of cables and towers that bring electricity from the national transmission network to our homes and businesses. In Scotland this is typically SSE or Scottish Power.

A G99 or G98 are the applications for permissions that are required by the DNO to connect your Tesla Powerwall to the grid. We can manage this with you to ensure that the application is applied for correctly. For Powerwall 3 we would be applying for G99 approval for the full 11.04kW output and export. Once the offer of connection has been received from your DNO, they will advise if there are any restrictions to the proposed install such as required export off or restricted, or any additional upgrade required and the associated costs.  The export feature of a Tesla Powerwall allows you to export the energy to the grid. Some energy plans require this feature to be turned on to gain access to the preferential rates.

No work will be carried out without consent from you. We are happy for you to handle the DNO approval, alternatively, we offer this service to deal with the process on your behalf with an administrative charge of £200 +VAT.

Unfortunately Powerwall 3 is not backwards compatible and therefore cannot be installed alongside an existing Powerwall 2.

Powerwall 3 Expansion is designed to extend your backup duration at a lower cost. Each unit adds 13.5 kWh of additional energy capacity and can be easily integrated with both new and existing Powerwall 3 systems.

You can connect up to 3 expansion units to a single Powerwall, providing a total energy capacity of 54 kWh for your home. Since the expansion doesn’t affect the 11.04 kW output of the battery, no DNO application is required, ensuring a quick and hassle-free installation.