Solar Panels Exeter: Costs, Savings & Local Data
How much can solar panels save you in Exeter?
A typical 4kW solar panel system in Exeter generates around 4,280 kWh per year, saving you approximately £620 annually on electricity bills and export payments. With 1,640 hours of sunshine per year, most Exeter homeowners see payback within 10–13 years.
Exeter's housing stock — from terraced and semi-detached homes to modern detached properties — is well-suited to solar panel installations. Most roof types in Exeter can accommodate a 3–5kW system, and with energy bills remaining high, solar offers a practical route to lower costs.
Exeter receives around 1,640 hours of sunshine per year, making it one of the better-performing locations in England for solar energy. The city combines a historic centre with extensive suburban development, and most residential properties in areas like Heavitree, St Thomas, and Topsham have suitable roof space for solar. The South West's consistently good light levels mean Exeter homeowners can expect strong returns from a well-installed system.
Solar panel key figures for Exeter
1,640 hrs
Annual sunshine hours
Met Office / PVGIS regional data
4,280 kWh
Annual generation (4kW)
Based on 1070 kWh/kWp yield
£620
Annual savings (4kW)
At 24.5p/kWh + SEG
~11 years
Estimated payback
Based on average 4kW system cost
Solar panel savings by system size in Exeter
The table below shows estimated costs, annual savings, and payback periods for different solar panel system sizes in Exeter. Figures are based on a south-facing roof with no shading, using Exeter's regional solar yield of 1070 kWh/kWp.
| System Size | Panels | Cost | Annual Saving | Payback |
|---|---|---|---|---|
| 3 kW | ~8 panels | £4,500–£6,500 | £465 | ~12 years |
| 4 kW | ~10 panels | £5,500–£8,000 | £621 | ~11 years |
| 5 kW | ~13 panels | £6,500–£9,500 | £776 | ~10 years |
Solar energy in Exeter: local context
The South West has the best solar conditions in the UK, with above-average sunshine hours and mild winters. This region consistently delivers the highest per-panel generation figures in England.
Exeter homeowners benefit from 0% VAT on residential solar installations (until at least March 2027) and can earn income through the Smart Export Guarantee by selling surplus electricity back to the grid.
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Frequently asked questions about solar panels in Exeter
Solar panels in nearby areas
Showing areas near Exeter. Solar conditions vary by location.
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