Batteries and inverters

FOX ESS inverters and batteries, installed by SolarFX

FOX ESS equipment runs several of our systems, from the FOX EVO 5/10 in a Reading garage to a plant-room install in Tadley.

  • 5.0 on Google
  • MCS certified
  • Fixed written quotation
FOX EVO inverter and battery unit mounted on a garage wall in Reading

Accredited by

  • Anker SOLIX
  • Sigenergy
  • Tesla Energy
  • MCS Certified
  • NAPIT Registered
  • IWA Approved Installer
  • RECC Member
  • Trading Standards Approved
  • National Solar Association

Our warranty cover

  • 30yearsSolar panels
  • 10yearsBattery
  • 10yearsInverter
  • 6yearsOur workmanship
Warranty details

Why we fit FOX ESS

FOX ESS make hybrid inverters and batteries that combine well with a wide range of panels. We have fitted them with Canadian Solar on a flat roof and with twenty all-black panels on a slate roof.

The equipment is compact enough to live in a garage, workshop or plant room with the protection alongside it, which keeps the working parts of the system out of the living space.

The inverter display and app make it easy to confirm the system is running as it should after commissioning.

Customer Reviews

5.0 · rated on Google

  • "Ben from SolarFX and his team have done a great job for us. Kept us in the loop at all stages, and Ben has been really supportive following the install with support, set up and managing the new system. During the recent sunny period our average cost per day for electricity was 60p. Would strongly recommend SolarFX."

    Alistair Shaw Google

  • "Ben at SolarFX did an outstanding job on a 3.6kW solar system which included 11 solar panels, hybrid inverter and battery storage. The workmanship and attention to detail was brilliant — Ben did exactly what he said he would do. Highly recommend Ben and his team."

    Umar Saeed Google

  • "Ben was great to work with — an expert in both the installation practicalities and the analysis to choose the right system for our property. Our bills have reduced by 80% since the system was installed."

    James Lort Google

  • "Ben from SolarFX has been fantastic — working out what was wrong with our solar system and fixing it promptly, installing a new EV charger and fixing kitchen lights too. Helpful, knowledgeable and friendly. Great value and high quality too."

    Maria Evans Google

  • "Ben, Paul and Dom make a great team to bring together an excellent solar installation. Our original ask was a solar system to improve our overall energy footprint (EPC rating) and through the process we ended up with a highly efficient…"

    Michael P. Google

  • "Ben did an outstanding job with our solar system installation from start to finish. He was professional, knowledgeable, and took the time to explain everything clearly throughout the process. The installation was completed efficiently…"

    Lee Butler Google

  • "We recently had a full panel and battery storage system installed by SolarFX, and I couldn't be happier with the entire experience…"

    Clare Waters Google

  • "Exceeded expectations. Ben was very helpful from start to finish. From the initial contact with all my questions he was very knowledgeable and made this investment an easy choice…"

    Katie F. Google

  • "Highly recommended. Getting solar panels and a battery is a big financial commitment so we had surveys and quotes from five different companies. We felt Ben understood our requirements and was more diligent and reassuring in his knowledge…"

    Ed Reeve Google

  • "We recently had Ben from SolarFX install the Anker SOLIX X1 energy storage system along with solar panels, and we couldn't be happier with the service. Ben is incredibly hardworking and a very tidy, professional installer…"

    Beata Malinowska Google

  • "I had been meaning to look into solar panels and battery storage for some time, and when investigating who to use the name SolarFX came up on review sites. So I asked Ben and team to site survey, discuss and quote for their best options…"

    Mark Winandy Google

  • "Superb service. Ben is a very knowledgeable professional. Gave clear and easily understandable explanations about the process and the systems. The standard of Ben's work was exceptional. He went the extra mile. Very highly recommend them."

    Mark Hutchings Google

  • "Zero hassle, very clean, and savings of £6,000 for a job well done."

    Roger Hudson Google

  • "The team at SolarFX were great! We had a solar system installed by them and we are seeing massive benefits!"

    Lara Dymott Google

  • "Ben is a fantastic installer. Going over and above to make sure you are happy with every part of your installation."

    Linda Ashworth Google

  • "Really pleased with the service. Ben installed our solar panels and we have not had any problems…"

    Preety Sahaye Google

  • "Ben was very professional and knowledgeable on the products. Great service, and we will continue using this company for future solar-related products."

    Jason Mohammed Google

  • "Very professional, polite, clean and very knowledgeable, with great after-sales service."

    Lorraine Hirschfield Google

  • "Great professional service. On time and with great support. I highly recommend."

    Andrzej Ostapko Google

  • "Friendly, knowledgeable, and efficient. The entire process was smooth and stress-free."

    Anne Roy Google

  • "First class all round experience. A great team of professionals!"

    Oliver Tobias Google

What we install from FOX ESS

Hybrid inverter and battery

FOX EVO 5/10

Installed in a garage in Reading alongside the gateway, isolation and protection for a 9.5kWp slate-roof array.

Hybrid inverter and battery

5kW FOX ESS system

Installed in a plant room in Tadley with the batteries and protection, fed by a 33m armoured run.

Inverter

FOX ESS inverter

Fitted on a flat-roof solar system in Benson, Oxfordshire, and on a solar, battery and EV system in Padworth.

Warranty

10 years on battery and inverter

Manufacturer-backed, subject to the manufacturer’s usage limits, plus our own 6-year workmanship warranty. Full terms are in your written quotation.

Is FOX ESS right for your home?

A good fit when

  • You want a hybrid inverter and battery in a garage or plant room
  • You are pairing storage with a new solar array
  • You want a dependable system at a sensible price

Worth comparing when

  • You want very large modular storage — Sigenergy or Anker SOLIX may suit better
  • You want whole-home backup built into the same product family

FOX ESS installations, photographed on site

Every photo here is from one of our own FOX ESS jobs in Berkshire, Hampshire and Oxfordshire.

FOX ESS inverter and battery equipment installed in a plant room in Tadley
FOX ESS inverter running after commissioning in Benson
FOX ESS inverter display showing the system operating normally
Black solar array on a slate roof in Reading, paired with a FOX EVO system
Mounting rails and fixing points positioned across a slate roof

FOX ESS questions we get asked

Where does the FOX ESS equipment go?

Usually a garage, workshop, plant room or utility space with good access. The distance to the incoming supply is the thing most likely to affect the price.

Can I add a FOX ESS battery to existing solar?

Often, yes. Whether a hybrid replacement or an AC-coupled battery is better depends on the inverter you already have. We check at survey.

How do I know it is working?

The inverter display shows the system status, and the FOX app shows generation, battery level and grid use.

Related reading

Get a fixed price for a FOX ESS system

Send us your postcode and roughly what you spend on electricity. We come back with an indicative design and a price before anyone visits.