Solar panels in Northern Ireland
Similar to the north of England, with its own grant landscape.
Yield here
850
kWh per kWp per year
A 4 kWp system
3,400
kWh generated a year
Typical payback
8
years, south-facing
That is about 19% below Cornwall and Devon, the sunniest part of the UK — which sounds worse than it is. A 4 kWp system here still returns roughly £699 a year and pays for itself in 8 years.
Work out your own roof
4 kWp is about 10 panels
50% typical, 75% with a battery
Pays for itself in
8 years
£699 a year in Northern Ireland, against about £5,600 installed. Over 25 years you would be roughly £11,872 ahead.
Generated per year
3,400 kWh
850 kWh per kWp here
Used at home
1,700 kWh
£444 off your bill
Exported
1,700 kWh
£255 earned