Telephone: 01269 500388 Email: info@celticgreenenergy.co.uk
Energy bills in the UK have skyrocketed, and homeowners in Wales are feeling the impact. Installing solar panels allows you to generate your own electricity, reducing reliance on the National Grid and protecting you from future price increases.
At Celtic Green Energy, we’ve helped hundreds of local homeowners take control of their energy costs — and now we’re introducing our own Welsh energy champion: Owain Glynsolar. With his shield in one hand and solar power in the other, he’s spreading the message of cleaner, cheaper energy across South Wales.
Did you know? Wales receives more than enough daylight for solar panels to generate electricity all year round—even on cloudy days!
With over 13 years of experience installing solar panels and battery storage systems across Carmarthenshire, Swansea, Cardiff, and beyond, we’re here to help you go solar with confidence.
4kw System Example
1st-Year Energy Savings
Return on Investment
Save up to 70% on electricity and protect against future price hikes.
Homes with solar panels sell faster and for more.
Solar PV works year-round, even in cloudy conditions.
Maximise self-consumption and backup power security.
At Celtic Green Energy, we believe solar should be trusted, local, and proudly Welsh. That’s why we’ve introduced Owain Glynsolar — our new ambassador helping to spread the word about affordable, expert solar panel installations across South Wales.
From Carmarthenshire to Cardiff, Owain champions clean energy and lower bills for families and communities throughout the region. He’s not a celebrity — he’s one of us. And he’s here to show you how easy it is to go solar the Celtic way.
With energy prices continuing to rise, solar PV installations can drastically cut your electricity costs. Every home is different, but here’s what you could expect to save.
If you’d like to see your exact numbers, just ask Owain Glynsolar — our solar champion helping homeowners cut bills and go renewable across South Wales.”
| Home Type | Solar Panel System | Estimated Savings per Year |
|---|---|---|
| 3-Bed House (Cardiff) | 4kW System | £500 – £600 |
| 4-Bed House (Swansea) | 5kW System | £750 – £850 |
| Farmhouse (Carmarthenshire) | 6kW System + Battery | £1,200+ |
Want a detailed breakdown? Get a personalised solar quote and see exactly how much you could save.
Pairing your solar panels with a battery storage system helps you make the most of the energy you generate. Instead of sending excess electricity back to the grid, you can store it for use in the evening or during power cuts.
Maximise Self-Use – Use your solar energy even when the sun isn’t shining.
Energy Security – Keep your home powered during outages.
Increase Savings – Reduce your reliance on expensive grid electricity.
Smart Monitoring – Track usage, charge levels and savings in real time.
We install high-performance batteries from trusted brands like Tesla, Solax, and Duracell — all tailored to suit your property and usage. Ask us about adding storage to your solar system.
Switching to solar is a big step — especially here in Wales where energy prices are unpredictable and the weather isn't always sunny. Here’s what some of our customers had to say after choosing Celtic Green Energy.
"Our bills kept climbing and we needed a long-term solution. Since the solar went in, we’ve seen a big drop — and with battery storage, we’re using our own power even in the evening.” — Eleri & Dafydd, Llanelli
“I didn’t think solar would work well in Wales with all the rain — but it’s been generating even on cloudy days. Really glad we made the switch.” — Brian, Ammanford
“We didn’t want anything that would spoil the look of our home. The black panels are really sleek, and the battery is tucked away neatly. Everything looks great and works even better.” — Ceri, Cardiff
We are professional solar panel installers based in South Wales, proudly serving homeowners and businesses with reliable, high-quality solar solutions.
Local, Experienced Installers – With over 13 years in the industry, our trusted team knows what works best for Welsh homes.
Premium, Aesthetic Panels – We use the highest quality black solar panels for a sleek, modern finish.
Full Warranty Coverage – Lifetime panel warranty plus a 10-year, insurance-backed workmanship warranty.
System Monitoring – Off-site PV monitoring gives you peace of mind and system performance insights.
Switching to solar has never been more accessible.
At Celtic Green Energy, we offer 0% VAT on all solar and battery installs in Wales — saving you 20% instantly.
Pair that with flexible finance options and expert installation, and going solar has never made more sense.
We offer trusted, FCA-compliant finance options, including:
0% APR up to 60 months (with subsidy)
Low APR plans from 10.9%
Buy Now, Pay Later options available
We’ll find the best plan for your budget.
We can include option in your FREE solar quote just ask Owain.
You can use solar energy to power a multitude of appliances during the day subject to your power consumption and usage.
For energy needs after dark, you will need to source your power from the national grid or energy from solar batteries.
Power your washing machines, microwaves
Power your televisions, radios and computers
Recharge your electric vehicles with solar
Power your tools with solar energy
Power your lighting during the day
Power your electric heaters
Thinking about switching to solar energy? You’re not alone. At Celtic Green Energy, we know that investing in solar panels or battery storage is a big decision — and naturally, you’ll have questions. Whether you’re curious about costs, performance in Welsh weather, or how solar panels work with the grid, we’ve answered the most common questions below to help you make an informed choice with confidence
The cost varies depending on the system size, brand, and installation complexity. On average:
Most residential solar panel installations do not require planning permission as they fall under Permitted Development Rights. However, listed buildings or properties in conservation areas may need approval.
Solar panels typically last 25-30 years with minimal degradation. Most manufacturers provide warranties for 20-25 years.
Yes — solar panels still work on cloudy days, just at reduced efficiency. While direct sunlight produces the most electricity, modern solar panels can still generate power from diffused sunlight, which passes through clouds. On average, they produce around 10–25% of their usual output during overcast conditions.
However, solar panels do not generate electricity at night, since there is no sunlight. That’s where solar battery storage becomes important — it stores excess energy produced during the day, so you can use it when the sun goes down.
With solar and battery systems from Celtic Green Energy, you can stay powered up around the clock — even when it’s cloudy.
Most solar panel systems in the UK pay for themselves within 6-10 years through energy savings and Smart Export Guarantee (SEG) payments.
The SEG scheme allows homeowners to sell excess solar energy back to the grid, earning money on unused electricity. Rates vary by energy provider.
Solar panels are built to last and need minimal maintenance. In most cases, the rain in Wales helps keep them clean, but we recommend a visual check once or twice a year for debris or shading.
At Celtic Green Energy, all our panels come with a lifetime guarantee, giving you complete peace of mind. We also offer:
✅ Annual performance checks
✅ Optional professional cleaning
✅ Battery & inverter servicing
✅ Ongoing expert support
👉 With our lifetime-backed panels and local team, your solar system stays efficient and worry-free for years to come.
Yes! Battery storage systems allow you to store excess energy during the day and use it at night, maximizing savings and reducing reliance on the grid.
Ideal roofs:
✅ South-facing for maximum sunlight exposure.
✅ East or West-facing can still generate significant power.
✅ Minimal shading from trees or buildings.
✅ Strong roof structure to support panel weight.
Solar panels increase property value and make homes more attractive to buyers. You can sell your home with the panels or, in some cases, transfer ownership of a solar lease.
Ready to go solar with a local hero you can trust? Owain Glynsolar and Celtic Green Energy are ready to help homes across Carmarthenshire, Swansea, Cardiff—and beyond—switch to solar power. Get your free quote today.
