Saturday, 8 August 2026 (forecast)
Solar generation in Lisburn, Saturday, 8 August 2026
Mixed cloud over Lisburn. Even so, a 4kW install would generate around 9.6 kWh today.
4kW system
Typical 3-bed NI home (10-12 panels)
9.6 kWh
£3.21 of electricity
6kW system
Larger home, EV owner, or heat pump
14.4 kWh
£4.82 of electricity
Weather on the day
- Sunshine
- 3.0 h
- Cloud cover
- 99%
- Max temp
- 21.0°C
- Solar radiation
- 3.08 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 forecast conditions and a representative install. Actual generation varies with roof orientation, shading and hardware.