Solar Panels Plymouth: Costs, Savings & Local Data
How much can solar panels save you in Plymouth?
A typical 4kW solar panel system in Plymouth generates around 4,280 kWh per year, saving you approximately £620 annually on electricity bills and export payments. With 1,650 hours of sunshine per year, most Plymouth homeowners see payback within 10–13 years.
Plymouth receives around 1,650 hours of sunshine each year. A typical 4kW solar panel system here can generate approximately 4,280 kWh annually, providing meaningful savings on your electricity bills and reducing your household's carbon footprint.
Plymouth benefits from its South West coastal position, receiving around 1,650 hours of sunshine per year. The Devon climate is generally mild with good light levels, making solar panels an excellent investment for homeowners across the city and surrounding areas. Plymouth's housing ranges from period properties in the Barbican to 1930s semis in Peverell and modern estates in Derriford, with most roof types suitable for solar installation.
Solar panel key figures for Plymouth
1,650 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 Plymouth
The table below shows estimated costs, annual savings, and payback periods for different solar panel system sizes in Plymouth. Figures are based on a south-facing roof with no shading, using Plymouth'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 Plymouth: 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.
Plymouth 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 Plymouth
Solar panels in nearby areas
Showing areas near Plymouth. Solar conditions vary by location.
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Answer a few questions and receive personalised solar quotes — completely free.
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