Solar energy in Glasgow, United Kingdom
Average irradiation 2.54 kWh/m²/day · ~742 kWh per kWp per year
Monthly solar irradiation & temperature in Glasgow (NASA POWER)
| Month | Irradiation (kWh/m²/day) | Avg temp (°C) | Est. production per kWp (kWh) |
|---|---|---|---|
| Jan | 0.50 | 2.9 | 12 |
| Feb | 1.19 | 2.9 | 29 |
| Mar | 2.32 | 4.1 | 56 |
| Apr | 3.77 | 6.5 | 92 |
| May | 4.77 | 9.4 | 116 |
| Jun | 4.75 | 12.3 | 116 |
| Jul | 4.49 | 13.8 | 109 |
| Aug | 3.67 | 13.4 | 89 |
| Sep | 2.60 | 11.5 | 63 |
| Oct | 1.42 | 8.5 | 35 |
| Nov | 0.67 | 5.5 | 16 |
| Dec | 0.37 | 3.4 | 9 |
Solar potential of Glasgow explained
Glasgow receives an average of 2.54 kilowatt-hours of solar energy per square metre per day, measured over four decades of satellite observation. In practical terms, every kilowatt-peak of installed PV capacity yields about 742 kWh of electricity per year here, assuming a well-oriented system with a typical 80% performance ratio. While winters are dark, modern panel prices mean solar can still be economical — self-consumption value matters more than raw sunshine here.
Frequently asked questions
Is solar worth it in Glasgow?
With 2.54 kWh/m²/day of average irradiation, a 1 kWp system in Glasgow produces roughly 742 kWh per year. That is a moderate solar resource; economics depend more on local electricity prices and incentives, which our AI planner can research for you.
How much electricity would a 5 kW system produce in Glasgow?
Approximately 4,000 kWh per year — enough to cover a large share of a typical household's consumption.
What data is this based on?
Long-term satellite observations from NASA POWER (1981–present) and the PVGIS SARAH3 database, assuming a performance ratio of 80%.
Compare with nearby cities
London (2.6) · Paris (3.2) · Berlin (2.9) · Munich (3.3) · Madrid (4.8) · Barcelona (4.6) · all cities →