BATTERY TECHNOLOGY YOU CAN TRUST

We work with trusted brands to install high quality, reliable battery equipment to maximise your savings. Now available with 0% Finance.

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Our Battery Options

Choose from our range of high-quality batteries to suit your needs.

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From £75 per month

Fox ESS EP5

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Warranty: 10 years / 4,000 cycles
5.18 kWh capacity per unit
Modular up to 20.8 kWh in total (4 units)
Floor or wall mounted
90% depth of discharge
Weight: 50.5kg
Dimensions: 625 x 380 x 147mm
Protection: IP65 – Weather proof
Charge capacity – 5kW
Discharge capacity – 5kW
Powercut backup: Critical Load Circuit required to power small number of appliances

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From £75 per month

Duracell Dura5

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Warranty: 10 years / 8,000 cycles
5.12kWh capacity per unit
Modular up to 76.8 kWh in total (15 units)
Stackable, floor or wall mounted
90% depth of discharge
Weight: 45kg
Dimensions: 675 x 490 x 90mm
Protection: IP65 – Weather proof
Charge capacity – 5kW
Discharge capacity – 5kW
Powercut backup: Critical Load Circuit required to power small number of appliances

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From £75 per month

Tesla Powerwall 3

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Warranty: 10 years unlimited cycles
13.5kWh capacity per unit
Modular up to 94.5 kWh in total (7 units)
Floor or wall mounted
100% depth of discharge
Weight: 132kg
Dimensions: 1105 x 609 x 193mm
Protection: IP67 (Battery) / IP55 (Wiring)
Charge capacity – 5kW
Discharge capacity – 11kW
Powercut backup: Provided for whole home if required, via Backup Gateway 2

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Payment options to suit your solar needs

Unlock your journey to energy independence today with our flexible finance options. Enjoy 0% finance over 3 years, or choose a long term Solar plan up to 25 years - both with no upfront deposit required.

Spread Your Solar Cost With 0% Finance

You can now embrace energy independence by opting for our 0% Finance option by spreading the cost over 3 years. Longer terms available, enquire for details.

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Your Solar Plan From £75 A Month

The Solar Plan covers equipment, installation, monitoring, and maintenance, so you can spread the cost. Price varies; offers are subject to application, status and finance agreement.

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Frequently Asked Questions

How will solar batteries help reduce my energy bills?

Solar batteries enable you to store surplus energy when your solar panels produce more electricity than you need. This stored energy can then be used during times of lower solar generation, such as nighttime or cloudy days. By using stored energy, you draw less power from the grid, leading to reduced reliance on utility-supplied electricity and ultimately lower energy bills.

Why are solar batteries so important?

Solar batteries play a crucial role in optimising your solar energy system. They allow you to store excess energy generated by your solar panels during the day and use it during the evenings or cloudy periods. This means you can rely less on the grid, increase self-consumption of solar energy, and enhance your overall energy independence.

Can I use the battery during a power outage?

Yes, home batteries can be configured to provide backup power when the grid goes down. Tesla Powerwall 3 includes the Tesla Gateway, which automatically isolates your home and switches to battery in a power cut for a seamless supply to either essential circuits or, if designed that way, the whole home. Our Duracell Dura 5 and Fox ESS EP series can also provide backup when installed with a Critical Load Circuit, a minor change to your Consumer Unit (CCU) to be organised by the customer pre/post our install. Runtime depends on what you choose to power, your battery size and whether your solar can recharge the system during daylight. Tell us your priorities and we’ll design the right backup setup.

Can I monitor my battery and solar production remotely?

Absolutely. All systems we install come with remote monitoring so you can see live power flows, battery charge level, solar generation and household consumption, plus view history and alerts. Tesla Powerwall 3 uses the Tesla app, Duracell and Fox ESS systems connect to their own apps. We set this up at commissioning and can provide remote support if needed.

Is the battery indoor, outdoor, and is it wall-mounted?

All the batteries we supply are suitable for outdoor installation, which is our and the industries recommendation. Indoor installation is available if you sign a waiver. Tesla Powerwall 3 is flood-proof; Duracell Dura 5 and Fox ESS EP units are IP65 rated for weather resistance. All models can be wall-mounted, and floor stands are available if your wall construction or layout calls for it. We’ll confirm the best location during your site survey, taking into account clearances, ventilation and cable runs.

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You can view our full terms and conditions here.

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So Energy Trading Limited is registered in England and Wales. Registered number: 09263295
Registered address: Studio 2, Power Road Studios, 114 Power Road, Chiswick, W4 5PY
So Energy are authorised and regulated by the Financial Conduct Authority, under reference number 935278 to act as a credit broker, not a lender, and offer consumer finance from Tandem Bank Limited and HTG Finance Limited.