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OVO Smart Home
OVO Smart Home

Green up the grid with home energy storage

Our revolutionary home battery trial

Find out more about the revolutionary home battery trial we’re carrying out.

We’re bringing the #FutureOfEnergy to the here and now. That’s why we’ve partnered with Sonnen, to unlock the amazing potential of home batteries for solar energy storage.

What our battery storage trial involves?

We believe energy and tech are the best tools for tackling the climate crisis. Which is why we’re running this home energy storage trial.

We want to prove that home battery storage can help build a greener grid. So we’re installing sonnenBatteries in homes. The aim? To test how well they support the local grid at peak times – with energy from solar panels!

People taking part will get a brand new sonnenBatterie to help power their home. Which will really help green up the grid. Here’s how the trial works throughout the year...

Making green energy for local neighbourhoods

In the colder months, when energy is most needed, we’ll send the extra energy stored in batteries back to the local grid.

During this time, we might sometimes top up the solar energy stored in the batteries, with energy from the national grid. Just to make sure there’s enough to support the local network.

Ilustration Home battery storage

Making green energy for local neighbourhoods

In the colder months, when energy is most needed, we’ll send the extra energy stored in batteries back to the local grid.

During this time, we might sometimes top up the solar energy stored in the batteries, with energy from the national grid. Just to make sure there’s enough to support the local network.

Ilustration Home battery storage

Battery storage to power homes

During summertime, the batteries will mainly just be powering homes: storing energy from solar panels to be used when the sun’s not shining. There might be times when we’re testing other ways it can help support the wider grid, but this won’t affect energy use day to day. It’s all part of creating a greener, smarter energy system of the future – a win for us all!

how home battery storage works

Battery storage to power homes

During summertime, the batteries will mainly just be powering homes: storing energy from solar panels to be used when the sun’s not shining. There might be times when we’re testing other ways it can help support the wider grid, but this won’t affect energy use day to day. It’s all part of creating a greener, smarter energy system of the future – a win for us all!

how home battery storage works

Why we’re trialling home energy storage…

Green up the grid

Batteries can store renewable energy to be used later by homes – or the local grid – when it’s needed most.

They shrink energy bills

With a home battery, people could save up to £100 a year* because you’ll be using more of your own energy.

Make home energy storage mainstream

As one of the first to use this planet-loving technology, the trial will help shape the future of home batteries.

home energy battery sonnen

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Frequently Asked Questions

The sonnen Group is one of the world's leading manufacturers of smart energy storage systems and a pioneer of clean, decentralised and networked energy system technologies like virtual power plants. For more information check out https://sonnenbatterie.co.uk/

It is 67cm (w) x 23cm (d) x 88cm (h).

The battery can only be installed indoors.

A sonnenBatterie system can be typically installed in 3-4 hours although this will depend on each property. Of course, if you are having a solar PV system installed as well as a battery it will take longer. The Certified Installer will be able to confirm how long the install will take after they have completed a survey.

Yes, you’ll need to switch to OVO and have one of our smart meters installed to take part in the trial.

Unfortunately not, as the trial is currently only available on a single rate tariff.

No – your FiT payments won’t be affected

The sonnenBatterie comes with a market-leading warranty of 10 years or 10,000 charge cycles, and a lifetime of 20 years. The performance guarantee states that the battery will be not less than 70% of its installed capacity after 10,000 cycles. This is a market-leading warranty which is founded on the superior Lithium-Iron-Phosphate battery technology that is use in the sonnenBatterie to give a longer service life.

If you’re planning on moving home, give us a call on 0330 303 5063 and we’ll look into possible options. We might be able to remove your battery and look to re-install at your new property once it’s on supply with OVO.

The battery is yours to keep, for free.

If you leave OVO within the two year trial period, we’ll arrange to come and remove the battery. After the two year trial period, you’re free to leave OVO and your battery will continue to function as normal.

The sonnen App and web portal provide an easy-to-use interface giving you the ability to monitor and manage your energy usage and generation 24/7. You can view current and historic data as well as see a forecast of expected solar generation and consumption for the next three days.

battery flowchart

The above diagram shows how data flows between your sonnenBatterie and the cloud platforms.

Terms & Conditions

* £100/year for a 2.5kW/5kWh battery in a home with EAC of around 5000 kWh and 5kWp rooftop PVa.

View full Trial Terms and Conditions

LEM Trial Terms and Conditions