As energy bills remain high, more households across South Wales are asking: “Are solar panels worth it in 2025?” The short answer is yes. In this guide, you’ll find realistic costs, expected savings, available grants, and how to get free quotes from up to 4 MCS‑accredited installers in your area.
Get Free Solar Quotes (Up to 4 Installers)
How Much Do Solar Panels Cost in South Wales?
Pricing varies by system size, roof, and whether you include battery storage. Typical 2025 price ranges:
| System Size | Panels Only | With Battery Storage |
|---|---|---|
| 2–3 kW | £3,800 – £5,500 | £6,000 – £8,000 |
| 4–5 kW | £5,500 – £7,000 | £8,000 – £11,000 |
| 6+ kW | £7,000 – £9,500 | £11,000 – £13,500 |
All installers we connect you with are MCS‑accredited, ensuring quality work, compliance and access to key schemes.
Savings, Payback & ROI
- £700–£1,274 typical annual bill savings for a ~4 kW system (usage and tariff dependent).
- 6–9 years indicative payback period.
- Up to ~£31,000 saved over 25 years (including SEG income and bill reductions).
Compare Local Quotes to see your specific ROI with and without batteries.
Should I Add Battery Storage?
Batteries store daytime solar for evening use, boosting self‑consumption and resilience.
- Common setup: 2 × 5 kWh batteries
- Typical price: £2,000–£4,500 each (model & brand dependent)
- Benefits: higher bill savings, better use of cheap/overnight tariffs, limited backup capability (model dependent)
Is Solar Worth It in Welsh Weather?
Yes. Solar PV generates from daylight, not only direct sunshine. A suitable South Wales roof can produce roughly 3,000–4,000 kWh/year with a ~4 kW system. Output continues on overcast days, just at reduced levels.
Grants, Incentives & Tariffs (2025)
- 0% VAT on domestic solar (in the UK until at least 2027).
- Smart Export Guarantee (SEG): get paid for exported electricity (supplier rates vary, commonly ~4p–15p/kWh).
- ECO4 & Welsh Schemes: low‑income or eligible homes may access funded or subsidised upgrades.
Areas We Serve
We proudly connect homeowners with MCS‑accredited installers across:
- Cardiff (Roath, Canton, Pontcanna, Llandaff & more)
- Swansea (Uplands, Mumbles, Sketty & more)
- Newport (Rogerstone, Caerleon & more)
- Bristol (Clifton, Redland, Bedminster & more)
Why Choose Solar Planet?
- Free & fast: get up to 4 quotes, no obligation.
- Trusted: only vetted, MCS‑accredited local installers.
- Compare & save: transparent quotes help you pick the best value.
Expert, local installers
All installations are carried out by careful, caring, qualified MCS-accredited engineers.
FAQs
Do I need planning permission?
Most domestic installs are permitted development. Restrictions may apply in conservation areas or for listed buildings—your installer will advise.
Can I get solar with no upfront cost?
Some installers offer finance or monthly plans. Compare options when you receive quotes.
How long do solar panels last?
Panels typically last 25–30 years, with inverters and batteries replaced earlier depending on usage and warranty.
What roof do I need?
South or south‑west facing roofs are ideal, but east/west can still work well. Your installer will assess shading, pitch and available area.
Sources & Further Reading
It’s as easy as...
Answer a few questions about your home or business
Receive up to 4 quotes from our trusted installers in your area
They install your new system in as little as 2 weeks
What our customers say
”I was thinking about getting solar for my home and stumbled upon www.solarplanet.uk. The site's super easy to get, breaking down all the solar jargon. After reading up for a bit, I filled out their quote form. The next day, I got calls and emails from three solar companies in South Wales. Chatted with all of them, got quotes, and went ahead with one. The whole experience was smooth, and all the companies seemed top-notch. Big thumbs up!
Caroline McleanCardiff Resident
”Running a business, those rising energy bills were starting to pinch. So, we thought, 'Why not try solar?' A quick online search led us to Solar Planet. Filling out their quote form was a breeze, and guess what! The very next day, three solar experts from Bristol gave us a shout. They were all super helpful and knew their stuff. Picking one was tough since they all had great offers. And a big relief! They all had this MCS accreditation – a real peace of mind with all those dodgy stories you hear these days.
Daniel JonesOn The Blink - Commercial Business in Bristol
”It couldn't have been easier! Initially, we were scratching our heads trying to find a trustworthy company. Then, thanks to a quick Google search by my husband, we landed on Solar Planet. He filled out their quote form, and the next day, three different solar installers rang us up. We've been over the moon with both the installation and the ongoing support. They guided us through the whole process from installation to helping us find the best energy provider for solar power.
Ceri BurkeSwansea Resident
