Solar Panel Installation in Cardiff

In most cases, no. Solar panels on a standard property fall under Permitted Development rights, meaning no planning application is required, provided the panels do not protrude more than 200mm from the roof surface, and the property is not listed. If your home sits within one of Cardiff's conservation areas, such as Pontcanna, Roath or parts of the city centre, panels visible from the highway may require consent from Cardiff Council. Planning position is confirmed at the survey stage, and where an application is required, we manage the full submission on your behalf.

For a typical three-bedroom, semi with a 4kW system, annual savings range from £800 to £1,200 depending on roof orientation and how much of your generated electricity you use directly. Larger detached homes in areas such as CF14, CF15 and CF23 with a 6kW system and battery storage regularly save £1,400 or more per year. We provide a detailed 20-year savings projection based on your specific CF postcode and property, not a generic South Wales average, as part of every free survey.

Yes. Cardiff is better positioned for solar than most homeowners expect. The city receives between 1,200 and 1,400 annual sunshine hours, and the open suburban layouts across CF14, CF23 and CF3 mean south-facing roofs here face fewer obstructions than in more densely built areas. We use CF postcode irradiation data rather than national averages in every savings estimate, so the figures we give you reflect what your specific roof in your specific location can realistically generate.

Yes. All solar and battery installations currently qualify for 0% VAT, confirmed until March 2027, saving homeowners between £600 and £1,500, depending on system size. The Green Homes Wales scheme also provides interest-free loans of up to £25,000 through the Development Bank of Wales for eligible owner-occupiers across Cardiff. For qualifying lower-income households, ECO4 Flex funding may be available in addition.

Yes, and terraced properties make up a significant proportion of our Cardiff installations. The key factor is roof orientation. A rear-facing roof with a south to southwest aspect performs well regardless of property type, and we can maximise output on smaller roof areas by specifying higher-efficiency panels. Areas such as Roath, Canton, Grangetown, Cathays and Pontcanna are regularly fitted with solar by our team. We assess your roof accurately during the free survey and will tell you honestly if a particular property is not well-suited before any costs are discussed.

MCS certification is the minimum standard you should require from any solar installer. Without it, your system cannot be registered, you cannot access the Smart Export Guarantee, which pays you for surplus electricity, and you may face complications when selling your property, as solicitors routinely request MCS documentation during conveyancing. Every Quantum Renewables installation is MCS-certified through NICEIC. We register your Cardiff system on your behalf as part of the standard process at no additional cost, and you receive full documentation before we leave the site.