Solar panels in North West
Below average yields, but rising electricity prices keep the sums working.
Yield here
860
kWh per kWp per year
A 4 kWp system
3,440
kWh generated a year
Typical payback
7.9
years, south-facing
That is about 18% below Cornwall and Devon, the sunniest part of the UK — which sounds worse than it is. A 4 kWp system here still returns roughly £707 a year and pays for itself in 7.9 years.
Work out your own roof
4 kWp is about 10 panels
50% typical, 75% with a battery
Pays for itself in
7.9 years
£707 a year in North West, against about £5,600 installed. Over 25 years you would be roughly £12,077 ahead.
Generated per year
3,440 kWh
860 kWh per kWp here
Used at home
1,720 kWh
£449 off your bill
Exported
1,720 kWh
£258 earned