Solar Panels Grantham: Costs, Savings & Local Data
How much can solar panels save you in Grantham?
A typical 4kW solar panel system in Grantham generates around 3,800 kWh per year, saving you approximately £582 annually on electricity bills and export payments. With 1,490 hours of sunshine per year, most Grantham homeowners see payback within 10–13 years.
Grantham receives around 1,490 hours of sunshine each year. A typical 4kW solar panel system here can generate approximately 3,800 kWh annually, providing meaningful savings on your electricity bills and reducing your household's carbon footprint.
Grantham receives around 1,490 hours of sunshine per year. The Lincolnshire market town has a mix of Georgian properties, Victorian terraces, and modern estates.
Solar panel key figures for Grantham
1,490 hrs
Annual sunshine hours
HSG regional figure — no primary source recorded
3,800 kWh
Annual generation (4kW)
Based on 950 kWh/kWp yield
£582
Annual savings (4kW)
At 26.11p/kWh + SEG
~12 years
Estimated payback
£7,120 national DESNZ median, not a Grantham price
Solar panel output and savings by system size in Grantham
Generation and savings below are modelled for Grantham's location, using a regional solar yield of 950 kWh/kWp on a south-facing roof with no shading.
The installed cost column is a national figure, not a Grantham price. It is the DESNZ median of £1,780.25 per kW for systems up to 4 kW, derived from the MCS Installation Database and covering England, Scotland and Wales. No official dataset publishes installed costs at city level, and we will not imply one exists. Half of real installations cost more than the median.
| System Size | Panels | Cost | Annual Saving | Payback |
|---|---|---|---|---|
| 3 kW | ~8 panels | £5,340 | £436 | ~12 years |
| 4 kW | ~10 panels | £7,120 | £582 | ~12 years |
| 5 kW | ~13 panels | £8,480 | £727 | ~12 years |
Solar energy in Grantham: local context
The East Midlands offers solid solar performance, sitting between the higher yields of southern England and the slightly lower figures further north. The region's large stock of semi-detached homes from the inter-war period provides ideal roof space for solar.
Grantham 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 Grantham
Solar panels in nearby areas
Showing areas near Grantham. Solar conditions vary by location.
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Connect with trusted local installers and get accurate pricing for your home.
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