Solar panels in Cornwall and Devon
The sunniest part of the UK, and the best solar returns anywhere in the country.
Yield here
1050
kWh per kWp per year
A 4 kWp system
4,200
kWh generated a year
Typical payback
6.5
years, south-facing
Cornwall and Devon has the best solar yields in the UK. A 4 kWp system returns roughly £863 a year and pays back in about 6.5 years.
Work out your own roof
4 kWp is about 10 panels
50% typical, 75% with a battery
Pays for itself in
6.5 years
£863 a year in Cornwall and Devon, against about £5,600 installed. Over 25 years you would be roughly £15,983 ahead.
Generated per year
4,200 kWh
1050 kWh per kWp here
Used at home
2,100 kWh
£548 off your bill
Exported
2,100 kWh
£315 earned