Saturday, 11 July 2026
Solar generation in Lisburn, Saturday, 11 July 2026
A brilliant solar day in Lisburn. A typical 4kW install would generate around 16.4 kWh today.
4kW system
Typical 3-bed NI home (10-12 panels)
16.4 kWh
£5.48 of electricity
6kW system
Larger home, EV owner, or heat pump
24.5 kWh
£8.22 of electricity
Weather on the day
- Sunshine
- 13.3 h
- Cloud cover
- 88%
- Max temp
- 22.9°C
- Solar radiation
- 5.24 kWh/m²
Want this generating on your roof?
Compare quotes from MCS certified installers in Lisburn. Free, no obligation, and quotes for the same system routinely differ by more than £1,000.
Recent days in Lisburn
How we worked this out
We used daily shortwave radiation data for Lisburn from Open-Meteo and applied the standard PV yield model:
energy = radiation × system kWp × performance ratio.
The performance ratio is 0.78 (accounts for inverter and temperature losses, orientation and soiling).
Electricity is valued at 33.5p/kWh, the Power NI standard credit tariff.
Figures are an estimate based on observed conditions and a representative install. Actual generation varies with roof orientation, shading and hardware.