Solar Panel Installation
Full design, supply and installation of high-efficiency solar PV systems on tile, slate and flat roofs across Wales.
Learn more →Solar Panels Across Wales — Made Local, Made Easy
Welsh Solar installs MCS-certified solar PV, battery storage and EV chargers for homes and businesses from Anglesey to Newport. Cut your energy bills, your carbon, and your dependence on the grid.
- MCS Certified
- RECC Member
- 15-Year Workmanship Guarantee
- Welsh-Owned, Welsh-Run
- Free No-Obligation Survey
What we install across Wales
From a single roof in Llandudno to a 250kWp factory in Cardiff, we deliver clean energy systems that pay for themselves.
Battery Storage
Store the energy you generate. Use it after sundown. Buy less from the grid. Compatible with new and existing systems.
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EV Charger Installation
OZEV-approved 7kW home and commercial chargers, integrated with your solar to charge from sunshine, not the grid.
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Maintenance & Servicing
Annual health checks, inverter testing, panel cleaning and performance monitoring across all manufacturers.
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Repairs & Diagnostics
Faulty inverter? Underperforming array? Our engineers diagnose and repair systems we did not install, anywhere in Wales.
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Commercial Solar
Reduce your business energy costs by up to 60%. Tailored systems for warehouses, factories, farms and offices.
Business solar →Welsh weather is not a problem — it's an opportunity
Wales receives between 950 and 1,300 hours of sunshine each year, which is more than enough for solar PV to be highly productive. Modern panels generate from daylight, not just direct sun, and the cooler Welsh climate actually improves their efficiency. Excessive heat reduces panel output, so a sunny day in Aberystwyth produces more usable electricity than the same conditions in southern Spain.
For a typical three-bedroom home in Wales, a 4kWp system generates between 3,400 and 3,800 kWh per year — enough to cover roughly 70% of household demand when paired with a battery. Add an export tariff like Octopus Outgoing or SEG, and you earn money for the electricity you do not use.
The maths is straightforward. Bills are rising. Panels last 25–30 years. Wales has the rooftops, the daylight and the determination. We have the engineers.
Why choose Welsh Solar
How we work
Four straightforward steps from your first call to your meter spinning backwards.
1. Free site survey
An engineer visits your home or business, measures your roof, checks shading and assesses electrical infrastructure. We do this for free, with no obligation.
2. Custom design & quote
You receive a tailored proposal with system size, generation forecast, savings projection and a fixed price. No fluff, no pressure.
3. Installation
Most domestic systems are installed in one to two days by our in-house MCS-certified engineers. Commercial projects vary by scale.
4. Handover & aftercare
We commission your system, register it for SEG payments, and provide a monitoring app. Our 15-year workmanship warranty starts the day you sign off.
What our customers say
Real reviews from real Welsh homes and businesses.
★★★★★
From the first survey to switching the system on, the Welsh Solar team were professional, tidy and clear about every step. Our bills have dropped by more than half in the first quarter.— Megan H., Cardiff
★★★★★
We had a 60kWp system installed on our farm in Powys. The team handled the DNO paperwork, the design, the install — everything. We're now generating more than half our annual electricity.— Dafydd P., Llandrindod Wells
★★★★★
Honest pricing, no salesman patter. They explained what we needed and what we didn't. Battery and panels both went in inside two days.— Sarah R., Swansea
Serving every corner of Wales
From the north coast to the Valleys, we install solar across all of Cymru.
West Wales
Carmarthen · Pembrokeshire · Llanelli · Aberystwyth · Cardigan · Haverfordwest
Mid Wales
Powys · Brecon · Newtown · Builth Wells · Welshpool · Machynlleth
North Wales
Wrexham · Llandudno · Bangor · Anglesey · Conwy · Caernarfon
Frequently asked questions
How much do solar panels cost in Wales?
A 4kWp residential system typically costs between £6,500 and £9,000 fully installed. Commercial systems are quoted per kWp depending on roof access and equipment. We provide free, no-obligation written quotes.
How long does the installation take?
A standard domestic installation takes one to two days. Larger systems and commercial projects scale accordingly. We confirm timelines after the survey.
Do you fit batteries to existing solar systems?
Yes. We retrofit batteries to most existing PV systems regardless of who installed them. We carry out a compatibility check during the survey.
Will solar panels work in Welsh weather?
Yes. Solar PV works on daylight, not just direct sun, and panels actually perform better in cooler Welsh temperatures than in extreme heat. Wales receives ample irradiance for productive solar generation.