Flintshire's latitude and coastal climate make it surprisingly well-suited for solar generation. A south-facing 4kW system in Mold or Buckley will generate roughly 3,500-4,200 kWh per year — enough to cover most of a typical home's daytime usage.
The Smart Export Guarantee (SEG) replaced the old Feed-in Tariff in 2020. Under SEG, energy suppliers pay you for every kilowatt-hour you export back to the grid. Rates vary from 3p to 15p per kWh depending on your supplier and tariff.
Battery storage changes the equation completely. Without a battery, you will self-consume only 30-40% of your solar generation. Add a 10kWh battery and that jumps to 80-90%, dramatically improving your payback period.
Orientation matters. South-facing roofs are ideal, but east-west splits work well too — they give you morning and afternoon generation peaks that often match usage better than a single midday surge.
Shading is the biggest enemy of solar performance. Even partial shade on one panel can drag down an entire string. We use shading analysis tools and, where needed, SolarEdge or Enphase optimiser systems to isolate shaded panels.
MCS accreditation is essential. Only MCS-certified installations qualify for SEG tariffs and are eligible for grant schemes. RTS Electrical is a fully MCS-accredited installer, so your system will be registered correctly from day one.
Typical payback on a 4kW solar-only system is 8-12 years. Add a battery and the payback stretches to 10-14 years, but the long-term savings are significantly higher — especially as electricity prices continue to rise.
Need Help With Renewables?
RTS Electrical covers all of Flintshire and North Wales. Call us for a free, no-obligation quote.
