We design and fit solar panels with battery storage, and batteries on their own, for homes across North East Scotland. A 4kWp array with a 10kWh battery costs £10,000 to £12,000 fully installed, and a battery added to panels you already have costs £3,500 to £5,000, both at 0% VAT. Every job starts with a free survey and a fixed written price. Call 07304 027013.
Solar panels with battery storage cost £10,000 to £12,000 fully installed with Faithful Spark Electricians, for a 4kWp array with a 10kWh battery. A battery on its own, added to existing panels or charged from a cheap overnight tariff, costs £3,500 to £5,000 for 5 to 10kWh. Prices include the hybrid inverter, scaffold, cabling, commissioning, the SSEN grid notification and your certificates. The battery sits in the price because it is designed in from the start, not bolted on later.
This page explains how panels and a battery work as one system, how we size them, and where a battery may safely go. If you already know your town, each one has its own solar and battery page further down. Our own team, led by Steven Watt with Callum working alongside him, fits every system from our base at 17 Thomson Road in Peterhead. Call 07304 027013, Monday to Friday 8am to 6pm or Saturday 9am to 1pm.
Most enquiries fall into one of these. The survey is the same for all three: your roof, your fuse board, your meter data and where a battery can legally sit.
One hybrid inverter runs the panels and the battery, so there is one box on the wall, one app and one warranty contact. This is the cheapest way to get both, because the scaffold, the cabling and the grid paperwork are done once.
£10,000 to £12,000 for 4kWp with 10kWh
If your panels export most of what they make while you are out, a battery keeps that power for the evening. We either fit an AC coupled battery with its own inverter, leaving your existing system untouched, or swap the old inverter for a hybrid one when it is near the end of its life anyway.
£3,500 to £5,000 for 5 to 10kWh
A battery does not need a roof. On a time of use tariff it charges overnight when electricity is cheap and runs the house through the dearer hours. It suits flats, shaded roofs and north facing houses where panels would earn little.
£3,500 to £5,000 for 10kWh, £5,000 to £7,000 for 15kWh
Not sure which route fits? Send us a photo of your fuse board and, if you have panels, your inverter's label. We will tell you before we visit. Call 07304 027013.
Fully installed prices, the same for every town we cover. Your survey turns the range into one fixed figure in writing.
| System | Price, fully installed | What it suits |
|---|---|---|
| 3kWp to 4kWp solar only | £7,000 to £8,500 | Generates 1,800 to 2,800 kWh a year. Battery ready if you choose a hybrid inverter. |
| 4kWp solar with a 10kWh battery (most popular) | £10,000 to £12,000 | Generates 2,400 to 3,000 kWh a year. A typical family home. |
| 6kWp or more with 10kWh or more | £12,000 to £15,000 | Generates 3,600 to 4,500 kWh a year. High use homes, heat pumps, electric cars. |
| Battery retrofit to existing solar (5 to 10kWh) | £3,500 to £5,000 | Panels already on the roof, exporting most of their output. |
| 10kWh battery only | £3,500 to £5,000 | No panels. Charges on a cheap overnight tariff. |
| 15kWh battery only | £5,000 to £7,000 | Larger homes, heat pumps, or more circuits kept on in a power cut. |
| 4kWp solar with a myenergi Zappi EV charger | £9,500 to £11,500 | Surplus solar goes into the car instead of the grid. |
| 4kWp solar, 10kWh battery and a Zappi | £12,500 to £15,500 | Panels, storage and car charging designed as one job. |
| 5kWp solar, 10kWh battery and a Zappi | £14,000 to £17,000 | Bigger roof, bigger mileage. |
| Commercial solar, 15 to 50kWp | from £14,000, by survey | Workshops, farm buildings and premises with daytime load. |
0% VAT applied automatically on qualifying residential solar and battery installs until at least March 2027. A typical 4kWp home system returns around £500 a year in bill savings and export income. Price moves with roof access, the length of the cable route, whether the fuse board needs upgrading, and the battery brand and size.
Panels make direct current. An inverter turns it into the alternating current your house uses. With a battery in the system, the inverter makes one decision every few seconds: use it, store it, or export it.
Hybrid or AC coupled. On a new system we fit a hybrid inverter that handles panels and battery together. On a retrofit, an AC coupled battery has its own inverter and sits alongside your existing one, which leaves the original installation and its paperwork as they are.
Brands. We fit Fox ESS, SolaX, Alpha ESS and SolarEdge, all using lithium iron phosphate batteries, with tier 1 monocrystalline panels carrying a 25 year performance warranty. SolarEdge, with an optimiser behind each panel, is our choice where a chimney or a neighbour's tree shades part of the roof. Battery warranties are typically 10 years, depending on the brand.
South facing 4kWp generating 2,600 kWh a year. 24p per kWh import, 14.5p per kWh export.
| Solar only | |
|---|---|
| 1,000 kWh used at home at 24p | £240 |
| 1,600 kWh exported at 14.5p | £232 |
| Annual benefit | £472 |
| With a 10kWh battery | |
| 1,000 kWh used at home at 24p | £240 |
| 1,000 kWh stored, 920 kWh used in the evening at 24p | £220.80 |
| 600 kWh still exported at 14.5p | £87 |
| Annual benefit | £548 |
An estimate, not a promise. It assumes 1,000 kWh a year that would have been exported is stored instead, and 92% round trip efficiency. From solar alone the battery adds about £76 a year. The bigger gain is charging it overnight on a cheap rate through the winter, worth the gap between your night rate and your day rate on every kWh it moves.
A battery is sized against what you use after dark, not against the biggest number on the brochure. Too big and it never fills or never empties. Too small and it is flat by eight o'clock.
A smart meter records your use every half hour. With your permission we look at a year of it, so the battery is matched to your real evenings and the array to your real days.
South is best, but east and west roofs split across two faces work well because they spread generation over the morning and the evening. Shading, roof condition and access are checked on the survey.
A system that can export up to 3.68kW is notified to SSEN under G98 after it is fitted. Bigger inverters, or several units together, need SSEN's approval under G99 before we switch on. We handle both and allow for them in the date we give you.
An electric car or a heat pump changes the answer. A larger battery, or a modular one you can add to later, often costs less than replacing a small one.
For a typical home, through the evening and most of the night. The maths, with our assumptions shown:
A home with an electric oven, a tumble dryer and an electric shower in the evening can use 1.5kW or more and empty it by bedtime. A 7.4kW car charger would drain it in a little over an hour, which is why we set the car to charge from the grid at night instead. These are estimates. Your meter data gives the real answer, and we work it out with you at the survey.
Tell us your supplier and roughly what you pay a month. We will ask for your half hourly readings and come back with a size and a fixed price.
The tariff you are on matters as much as the hardware. We set the charge and discharge windows at commissioning and show you how to change them.
These price electricity by the hour: cheap in the small hours, dearer through the day and the early evening peak. The battery buys at the first price and the house uses it at the second. In winter, when the panels make little, this is where most of a battery's value comes from.
Rates from major Scottish suppliers in 2026 range from approximately 5p to 15p per kWh, with leading tariffs such as Octopus Outgoing currently paying around 14.5p. Our Smart Export Guarantee explained guide compares them. We give you everything the supplier needs to register you.
Car tariffs with very cheap overnight hours can let a car charger pull from the home battery if the two are not set up to talk to each other. We set the battery to hold its charge while the car charges. Our guide on how to stop Intelligent Octopus Go draining your battery explains the fix.
Every charger we fit is smart, as the law requires, and solar ready, so it can charge from your own panels. The Premium package with a Hypervolt Home 3 Pro or myenergi Zappi starts from £1,195 + VAT. Most of the solar towns we cover are in the shire, so our page on EV charger installation in Aberdeenshire covers the earthing and long cable runs that come with them.
Already on a car tariff and thinking about a battery? We will check the two can work together before you spend anything. Call 07304 027013.
A home battery is an electrical energy storage system, or EESS, and it now has its own rules. None of the local installer pages we compared mention them.
BS 7671:2018+A4:2026, published on 15 April 2026, brings in requirements for stationary secondary batteries, which is the formal name for a home battery. It is the edition every new installation must now meet. A battery also lets current flow both ways through a board built for one, so the protective devices are chosen for that.
PAS 63100:2024 is the fire safety guidance for home batteries. It keeps them out of rooms used for sleeping and off escape routes that are not protected, sets specific conditions for lofts, and caps the energy in one enclosure at 20kWh. In practice that usually means a garage, a utility room or an outside wall.
Every battery we fit uses lithium iron phosphate cells. They are more tolerant of heat than the chemistries in phones and many cars, and they last more cycles. We follow the IET Code of Practice for Electrical Energy Storage Systems on every installation.
A battery on its own switches off when the grid goes down, however full it is. Keeping lights on needs an emergency power supply output wired to chosen circuits, usually lighting, the fridge, the router and the boiler controls. It is an option priced at survey, not something to assume.
What we do: we pick the battery's position on the survey against these rules, design the protection to Amendment 4, apply to SSEN where needed, and tell you plainly if backup is or is not included. The town battery pages below go into the siting rules room by room. Call 07304 027013.
Often yes, but not for everyone, and we would rather tell you at the survey than fit a battery that sits full all day.
For the longer cost and benefit picture, read is battery storage worth it in Scotland.
We know of no evidence that working systems are being removed in numbers. The reasons that do come up are practical: the roof needs replacing and the panels come off and go back on; an inverter has failed out of warranty and nobody has fixed it; or a system was sold on a forecast it never reached. A few older homes have a rented roof agreement that complicates a sale. A failed inverter is usually a repair, not a reason to remove anything, and we can test an existing system and tell you which it is.
Send a photo of your inverter label and your fuse board. We will tell you whether an AC coupled battery or a hybrid swap suits it, and what it costs.
Typically four to eight weeks from enquiry to commissioning. Solar takes one to two days on site, and solar with a battery two to three.
Roof, supply, fuse board, battery position and your meter data. Usually booked within 5 to 10 working days.
Within 1 to 3 working days of the survey, itemised, with the generation estimate for your roof.
G98 notification or a G99 application to SSEN, whichever your system needs.
Scaffold, panels, inverter, battery and cabling. The power is off only while we connect at the board.
Tested and certified to BS 7671, battery windows set to your tariff, monitoring app set up with you.
Electrical installation certificate, the MCS certificate issued by Q-Smart, and what your supplier needs for the Smart Export Guarantee.
Scotland note: there is no Scottish grant or loan for home solar or batteries to build a quote around at the moment. The Home Energy Scotland solar and battery loan was withdrawn in June 2024. What is real is the 0% VAT rate and export income.
Each town page covers what is different there: the housing, the council, and the questions we get asked locally.
We also fit solar and batteries in Inverurie, Mintlaw, Cruden Bay, Turriff, Banchory and the farms between them. Not on the list? Ask. Call 07304 027013.
Steven Watt leads our team, with Callum working alongside him. Steven holds the City and Guilds Level 3 Award in the Installation and Maintenance of Small Solar Photovoltaic Systems (610/4841/0) and the City and Guilds Level 3 Award in the Design, Installation and Commissioning of Small Electrical Energy Storage Systems (610/4840/9), both awarded in April 2026. The second is the award that covers battery design specifically. He also holds City and Guilds 2391-52 for inspection and testing, 2382-22 for BS 7671 and 2365-03 for electrical installations.
MCS: every installation we complete is fully MCS registered through our Q-Smart partnership. Q-Smart is a Competent Person Scheme. Faithful Spark Electricians carries out the installation and Q-Smart issues the MCS certificate, so your system qualifies for the Smart Export Guarantee.
Faithful Spark Electricians Ltd is a NICEIC Approved Contractor (620239), TrustMark registered (4205123), registered in Scotland as SC821028, and carries £2M public liability insurance. For everything else electrical, see our page for an electrician in Peterhead.
"From the initial meeting we were impressed with the work and professionalism. Steven turned up exactly as scheduled and kept constant communication throughout. Would have no hesitation recommending Faithful Spark."Brian McMenemy, Peterhead, Google review of a fan installation. Rated 5.0 from 100+ reviews: read them on Google.
Technically reviewed by Steven Watt. Last updated 6 October 2026.
Something else on your mind? Call 07304 027013 or send us a message and we reply the same working day.
With us, a 4kWp solar system with a 10kWh battery costs £10,000 to £12,000 fully installed, and a 6kWp or larger system with 10kWh or more costs £12,000 to £15,000. Solar alone is £7,000 to £8,500 for 3kWp to 4kWp. Qualifying home installations are zero rated for VAT until at least March 2027.
It is worth it when your panels export a lot of their output while you are out, or when you can charge the battery on a cheap overnight tariff in winter. On solar alone a 10kWh battery adds roughly £76 a year in our worked example, so the tariff, a car or a heat pump is usually what makes it pay.
For a typical home, through the evening and most of the night. As an estimate, about 9kWh is usable, an evening uses roughly 5kWh and the overnight background roughly 2.5kWh. A home with electric cooking, a dryer and a shower in the evening can empty it by bedtime. We size it from your own meter data.
Yes. An AC coupled battery with its own inverter sits alongside your existing system and leaves it untouched, or we replace an ageing inverter with a hybrid one. A 5 to 10kWh retrofit costs £3,500 to £5,000 fully installed.
No. A battery can charge from the grid on a cheap overnight rate and run the house through the dearer hours. A 10kWh battery on its own costs £3,500 to £5,000 and a 15kWh battery £5,000 to £7,000.
Usually for practical reasons: a roof replacement, an inverter that failed out of warranty, a system that never matched the forecast it was sold on, or a rented roof agreement complicating a sale. A failed inverter is usually a repair, and we can test an existing system and tell you.
Not for a typical home at the moment. The Home Energy Scotland solar and battery loan was withdrawn in June 2024. The support that is real is 0% VAT on qualifying installations until at least March 2027, and Smart Export Guarantee payments for what you export.
Only if it is designed to. A standard battery shuts down when the grid fails. An emergency power supply output wired to chosen circuits keeps essentials running, and we price it at survey.
Yes, through our Q-Smart partnership. Every installation we complete is fully MCS registered through Q-Smart. Q-Smart is a Competent Person Scheme. Faithful Spark Electricians carries out the installation and Q-Smart issues the MCS certificate, so your system qualifies for the Smart Export Guarantee.
Typically four to eight weeks from enquiry to commissioning. On site, solar takes one to two days and solar with a battery two to three days. If SSEN must approve the system first under G99, the date depends on that approval.
Call 07304 027013 or use the form. Tell us your town, whether you already have panels, and roughly what you spend on electricity. We will arrange a free survey and send a fixed written price.
Faithful Spark Electricians Ltd · 17 Thomson Road, Peterhead, Aberdeenshire, Scotland, AB42 3FJ · NICEIC Approved Contractor 620239 · TrustMark Registered 4205123 · MCS certified via our Q-Smart partnership · City and Guilds 610/4841/0, 610/4840/9, 2391-52, 2382-22, 2365-03 · BS 7671:2018+A4:2026 · £2M public liability insured · Company SC821028 · VAT 503 6560 13 · 0% VAT applied automatically on qualifying residential solar and battery installs until at least March 2027.
