Why choose Powervault?

Powervault 3 is an intelligent battery system for the modern smart home, designed to maximise energy efficiency and value for the customer. Powervault 3 reduces customers’ energy bills by storing free solar energy or cheap, off-peak electricity from the grid. Customers can also receive an income from Powervault by allowing Powervault’s proprietary GridFLEX™ platform to occasionally control their Powervault 3 battery and support the grid when it is under stress. By connecting Powervault 3 directly to their solar system, customers can also prevent the need to replace their solar inverter when it fails.

Economic benefits

Powervault 3 is designed to maximise energy efficiency and value for the customer.

  • Powervault 3 can reduce customers’ electricity bills by up to 20% by storing solar energy during the day and discharging it in the evening. Powervault 3 can also charge from the grid, which means it can store cheap, off-peak electricity. Customers on ‘smart’ time-of-use tariffs can save an additional 15% on their energy bills by storing low-cost electricity and discharging it at peak time. Powervault 3 is compatible with Economy 7 tariffs and Green Energy UK’s TIDE tariff. Powervault 3 is forward-compatible with other ‘smart’ tariffs, which are forecast to become widespread once smart meters are installed.

  • Powervault 3 is an AC-coupled system and is installed in the home behind the Generation & Export meter. Installing Powervault 3 in your home therefore does not remove or diminish the payments you receive for generating and exporting renewable energy.

  • Powervault 3 is currently one of the most affordable energy storage products available in the U.K.. It is also generates market-leading value for customers; not only can it lower customers’ energy bills by storing free or off-peak energy, but it can also generate an income for customers via the GridFLEXTM platform.

Environmental benefits

Powervault 3 enables customers to use less of the energy generated by centralised power stations and more of their own, locally-generated, clean energy.

  • Powervault works with the National Physical Laboratory to better understand the impact Powervault 3 and Powervault 3eco has on greenhouse gas emissions. The National Physical Laboratory has calculated that Powervault 3 and Powervault 3eco will, depending on the capacity of the system, reduce CO2 emissions by >300kg/p.a. in the average U.K. home.

  • The grid is under ever-increasing stress from the roll-out of renewable technologies like wind and solar, which generate electricity intermittently throughout the day. The uptake of electric vehicles also puts huge demands on the local network at certain times of the day. The combination of these phenomena means the grid must rely on flexible assets like Powervault 3 to balance supply and demand. Powervault’s GridFLEXTM platform supports the grid when it is under stress and pays Powervault 3 customer for providing this service. Not only that; GridFLEXTM helps accelerate the deployment of clean technologies and the U.K.’s transition to a low-carbon, distributed energy network.

  • Powervault, through its partnership with Nissan and Renault, has developed the Powervault 3eco system, which gives a ‘second-life’ to batteries that have been used in electric vehicles. It also provides customers with a cheaper alternative to the Powervault 3 system, and the benefit of a green and healthy conscience.

Additional benefits

Powervault has a number of extra benefits – beyond the green and economic – for the customer.

Smart tariff charging

Powervault 3 is compatible with ‘smart’ time-of-use tariffs, which vary in cost throughout the day. Using Powervault’s proprietary smart tariff controller on the Customer Portal, customers can select the charging schedule of their Powervault 3 system to ensure they benefit from low-cost energy from the grid. This provides additional benefit to customers, beyond the benefit of storing excess solar generation during the day.

Customer portal

The Powervault customer portal provides customers with a platform from which to monitor their energy use and optimise their Powervault 3 charging schedules. It provides customers with accurate information about the present and historical performance of their Powervault 3 system. Customers can also use the smart tariff controller on the portal to optimise the charging of their Powervault 3 systems against ‘smart’ time-of-day tariffs.

Energy independence

Powervault 3 is designed to enable customers to become more energy independent and reduce their reliance on electricity supplied via the grid. Powervault 3 allows customers to maximise the use of their clean, green solar energy and either minimise or eradicate their export to, and import from, the grid. Powervault 3 also helps protect customers against rising electricity tariffs, which are currently increasing at a rate of >6% per year.

Ease of installation

Powervault 3 is very simple to install and is compatible with all solar systems. Powervault 3 is an ‘all-in-one’ system, which means it contains batteries, an inverter/charger, a Battery Management System, an Energy Management System and various control boards. Customers are not required to buy additional hardware to install Powervault 3.

Compatible with all solar PV systems

Powervault 3 is an AC-system and is therefore universally compatible with all solar PV systems. No additional parts or adjustments to your existing solar PV system are required to accommodate Powervault 3 in your home.

Comprehensive warranty

Powervault offers a comprehensive 10-year warranty on the Powervault 3 system and a 3-year warranty on the Powervault 3eco system. For further information please see the Warranty section within the Technical page.

Safe technology

Powervault 3 has been designed to be safe to use in domestic and commercial premises. All products have undergone extensive safety testing, and EMC and CE certification. For further information on the in-built safety features of the products, please visit the Safety & Regulations page.

British design and manufacture

Powervault is a British company, based in London. Powervault’s products are designed and assembled in London and the company is focused on designing products suitable for residential and commercial premises in the U.K.

Customer service

We pride ourselves on our customer service and will always answer any questions customers might have about their Powervault system. Our engineers are always on-hand to check customers’ systems remotely or visit customers’ properties if they believe their Powervault product is not working as it should be.

"I am really impressed with my Powervault: it looks great, it took 45 minutes to install, it’s easy to understand and it saves me money on my electricity bills. I also think the company’s customer service is fantastic; their team monitors each Powervault via the internet to ensure they are all running properly. I am now considering installing another Powervault to help me store more of my solar energy."

Mr. Usher

"The installation of Powervault was very efficient and it didn’t take any time at all to link the system to our solar panels. The Powervault works alongside our air source heat pump and has helped cut our electricity bills by 80% - even with the swimming pool on."

Mr. Quarrington

"Having tried a competing home energy storage product, which never worked and was very complicated to install in my home, I am really pleased I now have a Powervault. My bills from Eon have reduced dramatically and I can always understand what Powervault is doing – either from the light display on the front or via the online customer portal."

Mr. Patterson

"I thought the customer service, both pre- and post-sale, was impeccable and I am now looking forward to seeing how much more of my own solar energy I can use once the weather brightens up."

Mr. Price