Location data · Saarland
Sun hours in Völklingen
How sunny is Völklingen? Over a year the sun delivers 1,352 kilowatt-hours onto every square metre here — in June roughly 5 times as much per day as in December. “Sun hours” has two meanings: the weather report counts how long the sun shines. For solar power what matters is how much energy arrives — and that is what this page shows, as peak sun hours (hours of full sun power).
For solar planning this means: an optimally tilted, south-facing array (35°) harvests an annual average of 3.71 peak sun hours per day in Völklingen. In 9 out of 10 years at least 1,243 kWh/m² are reached. All values are computed from this location’s satellite hourly data, not estimated.
- Annual average (PSH)
- 3.71 kWh/m²/d
- P90 annual total
- 1,243 kWh/m²
- Optimal tilt
- 35°
- Terrain horizon max.
- 6.5°
Sun hours per month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PSH/day (35° south) | 1.38 | 2.41 | 3.75 | 5.02 | 5.18 | 5.67 | 5.67 | 5.08 | 4.53 | 2.90 | 1.60 | 1.20 |
| P90 | 1.00 | 1.80 | 2.88 | 4.08 | 4.26 | 4.91 | 5.03 | 4.26 | 3.96 | 2.32 | 1.29 | 0.90 |
Daily average per month in kWh/m² at 35° tilt, south-facing, including the terrain horizon of Völklingen. P90 = reached in 9 out of 10 years.
Optimal tilt angle in Völklingen
The annual optimum for Völklingen is 35° south; anything between 22° and 49° counts as equivalent (below 2% difference). For winter operation (off-grid) 65° is optimal, for summer use 20°. Flat-laid modules lose 13.5 % versus the optimum. Adjusting twice a year would add 2.8 % here, monthly adjustment 3.5 % — only relevant for adjustable mounts.
Is a balcony solar kit worth it in Völklingen?
A vertical south-facing railing in Völklingen harvests 944 kWh/m² per year — 70 % of what an optimally tilted 35° panel yields at the same spot. December softens the penalty: with the low winter sun, the vertical plane reaches 100 % of the 35° December value, computed from the same hourly data with its own plane transposition. Open the balcony solar calculator with these coordinates →
Neighbouring places compared
- Saarbrücken3.69 kWh/m²/d11 km
- Neunkirchen3.79 kWh/m²/d26 km
- Merzig3.49 kWh/m²/d27 km