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Renewables

Battery
Storage

A solar array generates most of its power in the middle of the day. Most households use most of their power at six o'clock, when the kettle, the oven and the lights all come on at once. Battery storage is what closes that gap.

Published spec

10kWh

Included in every guide-priced system Coutts Electrical publish.

Certified &
accredited

  • NICEIC Approved ContractorRegistered Competent Person Electrical
  • Microgeneration Certification Scheme (MCS)
  • TrustMark
  • Renewable Energy Consumer CodeChartered Trading Standards Institute Approved Code
  • SafeContractor Accreditation
  • SafeContractor SafePQQ Verified
  • Which? Trusted Trader
  • Octopus Trusted Partner
  • The Renewable Energy Hub — approved installer
  • OZEV

Solar Battery Storage Installation
in Kent.

Every guide-priced system we install includes 10kWh of battery capacity as standard, so the electricity your roof generates at noon is still yours at dusk instead of being exported for a fraction of its value.

Batteries are installed and commissioned by our own qualified electricians alongside the array, with monitoring set up so you can see exactly what is being stored and used.

Why storage changes the maths

01 Battery Storage

Why storage changes the maths

Without storage, power your panels generate while the house is empty is exported to the grid. With storage, it is held until you need it. The practical effect is a much higher share of your own generation actually used in your own home.

How much difference it makes depends on your usage profile and the size of the array — which is exactly why every system we quote is designed around your own consumption rather than sold from a price list.

02 Battery Storage

Adding a battery to panels you already have

If you already have solar panels, a battery can usually be added without replacing the array. We survey the existing installation, check the inverter arrangement and confirm what can be integrated safely before quoting anything.

Customers have come back to us to add storage to arrays installed years earlier, and to extend systems when their usage changed.

03 Storage

The battery isn't
the extra.

An array on its own hands most of its output back to the grid at exactly the hours you are least likely to be home.

10kWh Included on
every system
in the ladder
Day Charging
Peak Discharging
Night Reserve
Export To grid

Schematic panel — a diagram of how storage gets used across a day, not a product photograph and not measured output. Real installed batteries are photographed below.

Retrofit is routine. If you already have panels and no storage, we size a battery to the array you have, connect it correctly into your existing electrical installation, handle the DNO side, and set the monitoring app up on your phone before we leave.

Excess energy can still be exported back to the grid. What storage changes is the share of your own generation you actually get to spend.

“Supplied and installed battery for my existing solar panels. Excellent communication throughout. Work completed effectively and all mess cleared up. App installed on my phone and ongoing support available if needed. Would recommend this firm.”

Jean Say — July 30, 2026 Battery retrofit · verbatim Google review

04 On site

This work,
photographed.

Coutts Electrical's own photographs of their own completed installations.

Battery storage and inverter installation by Coutts Electrical Contractors — photograph 7 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 8 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 9 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 10 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 1 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 2 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 3 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 4 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 5 of 10
Battery & inverter install
Battery storage and inverter installation by Coutts Electrical Contractors — photograph 6 of 10
Battery & inverter install
Lighting installation by Coutts Electrical Contractors — photograph 9 of 12
Lighting installation
Rooftop solar array by Coutts Electrical Contractors — photograph 17 of 18
Rooftop solar array
Domestic electrical installation by Coutts Electrical Contractors — photograph 10 of 12
Domestic electrical work
Rooftop solar array by Coutts Electrical Contractors — photograph 18 of 18
Rooftop solar array

Photographs are Coutts Electrical's own, of their own completed work. Captions name the system type rather than a location, because the images are not tied to a named customer or town.

05 What customers said

Verbatim,
not curated.

Real reviews from the Google profile Coutts Electrical publish on their own site, reproduced word for word.

Supplied and installed battery for my existing solar panels. Excellent communication throughout. Work completed effectively and all mess cleared up. App installed on my phone and ongoing support available if needed. Would recommend this firm.

Jean Say
July 30, 2026 · Google

Max and his team installed my original solar panels a few years ago and have been back more recently to install the electrics for a heat pump and increase the number of panels. I'd recommend them in a heartbeat for any job you might have

Mark Walford
June 11, 2025 · Google

I wanted a rather specialised solar system for which I'd tried to get other companies to quote for in the past. Max and his team came to do a site survey and after a few emails back and forth to iron out the details, they delivered me exactly what I wanted. Everything happened exactly when they said it would and the system was commissioned on-time and on-budget. The site was left spotless. I have nothing but praise for Coutts Electrical Contractors.

Jim Conner
June 12, 2024 · Google

Quite simply the best customer service I've experienced ever.Max and his team fitted our solar panels just over a year ago, and they were great throughout the process.But what really stood them apart was when we recently had an issue with a small leak around one of the panels. I emailed Max on a Sunday night, and by 0830 Monday morning scaffolding was up, the panels removed, the issue isolated and fixed, and the internal damage repaired.How a company responds when an issue arises tells you a lot, and they were absolutely first rate. Thank you Max and team 🙏🙌☀️

Tim Cook
April 25, 2024 · Google

Installation of 10 solar panels, a MyEnergi battery and car charger. Max and the team were well organised, excellent communicators and methodical with their work.. the work was completed on time and everything was tidy when they left. No great demand for cups of tea, but nevertheless grateful when they received them :).

David Birkinshaw
September 11, 2023 · Google

Fantastic experience end to end. Max from Coutts designed, engineered and installed a Solar PV system with Battery for me at the house. Everything was done on time as planned, system performs really well, right size for the property, great documentation, real-time data, all very tidy and professional. I don't often write reviews, but I'd definitely recommend Coutts if you want a quality solar install.

Claus M
June 9, 2023 · Google

Coutts Electrical Contractors Ltd installed 11 Nr. rooftop solar panels for us and we were very pleased with the service we received. The installation was completed within the estimated time and a full set of handover documents was provided. Ahead of the installation we had several queries and they were always answered promptly and thoroughly. The arrangement of the solar panels is producing good results for us.

John Morsley
April 29, 2023 · Google

I had solar panels, an inverter, a storage battery and a Zappi EV charger installed. Max, Alex and Steve did a cracking job and were very efficient with their time. They started nice and early and explained their plan to me and answered all my questions. The quality of work was superb, everything measured and lined up perfectly. They finished in exactly the time they planned and tidied up everything and took all the packaging with them! I would thoroughly recommend Coutts Electrical to carry out your work, they are a great team and work together well. I will be using their services again when I increase my battery storage. Thanks for a brilliant job :-)

Alex Muirhead
March 9, 2023 · Google

Max and his team did a great job fitting anti-bird blockers around my solar panels, and removing the pigeon dirt and grime from the roof and gutters - not the pleasantest of jobs! Very efficient and prompt.

Carolyn Burraston
March 12, 2025 · Google

Max is a legend! Super professional and conscientious from start to finish. Answered all my questions in full. Customised the install to meet my needs. Wasn't at all salesy or pushy like many other solar installers.

Ed Brewster
June 7, 2024 · Google

10 of the reviews published on the Coutts Electrical reviews page, each one reproduced word for word.

07 From the blog

More on
this subject.

Illustrating: How do solar panels work?
Solar3 min read

How do solar panels work?

Find out more about how solar panels work. Is this advanced and cost-effective power solution right for your property?

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