Solar Panels Caernarfon: Costs, Savings & Local Data
How much can solar panels save you in Caernarfon?
A typical 4kW solar panel system in Caernarfon generates around 3,680 kWh per year, saving you approximately £534 annually on electricity bills and export payments. With 1,450 hours of sunshine per year, most Caernarfon homeowners see payback within 10–13 years.
Caernarfon receives around 1,450 hours of sunshine each year. A typical 4kW solar panel system here can generate approximately 3,680 kWh annually, providing meaningful savings on your electricity bills and reducing your household's carbon footprint.
Caernarfon receives around 1,450 hours of sunshine per year. The historic castle town in Gwynedd has a mix of traditional slate-roofed properties and modern housing. Nest scheme support is available for eligible households.
Solar panel key figures for Caernarfon
1,450 hrs
Annual sunshine hours
Met Office / PVGIS regional data
3,680 kWh
Annual generation (4kW)
Based on 920 kWh/kWp yield
£534
Annual savings (4kW)
At 24.5p/kWh + SEG
~13 years
Estimated payback
Based on average 4kW system cost
Solar panel savings by system size in Caernarfon
The table below shows estimated costs, annual savings, and payback periods for different solar panel system sizes in Caernarfon. Figures are based on a south-facing roof with no shading, using Caernarfon's regional solar yield of 920 kWh/kWp.
| System Size | Panels | Cost | Annual Saving | Payback |
|---|---|---|---|---|
| 3 kW | ~8 panels | £4,500–£6,500 | £400 | ~14 years |
| 4 kW | ~10 panels | £5,500–£8,000 | £534 | ~13 years |
| 5 kW | ~13 panels | £6,500–£9,500 | £667 | ~12 years |
Solar energy in Caernarfon: local context
Wales benefits from the Welsh Government's active support for renewable energy. The varied landscape means solar performance differs between the sunnier south coast and the hillier inland areas, but most Welsh homes can benefit from solar.
Welsh homeowners may benefit from additional support through the Welsh Government's energy schemes, alongside the UK-wide Smart Export Guarantee and 0% VAT.
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Frequently asked questions about solar panels in Caernarfon
Solar panels in nearby areas
Showing areas near Caernarfon. Solar conditions vary by location.
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