Schelle, Flanders, Belgium, located at 51.1304° latitude and 4.3397° longitude, presents a moderate location for solar energy generation through photovoltaic (PV) systems. This northern temperate location experiences significant seasonal variations in solar output throughout the year.
Seasonal Solar Production
The solar energy potential in Schelle follows a predictable seasonal pattern. Summer months yield the highest production at 5.29 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 4.50 kWh/day. Production drops considerably in autumn to 2.26 kWh/day, while winter experiences the lowest output at just 1.12 kWh/day per kilowatt installed.
This pattern creates a roughly 5:1 ratio between the best and worst seasons, indicating that solar installations in Schelle will produce about five times more electricity during summer than winter months. This seasonal variability is an important consideration when planning a solar system in this region.
Optimal Installation Angle
For fixed solar panel installations in Schelle, Flanders, the ideal tilt angle to maximize year-round energy production is 43 degrees facing South. This angle has been calculated by analyzing the daily solar elevation patterns at this specific latitude, weighted according to the solar irradiance potential throughout the year.
Environmental and Weather Factors
Several factors may impact solar production in Schelle:
- Cloud cover and precipitation: Belgium's climate includes frequent overcast days, particularly during autumn and winter months, which significantly reduces solar efficiency.
- Fog and air pollution: Being near industrial areas and waterways, Schelle can experience morning fog and air particulates that scatter sunlight.
- Snow accumulation: Although not extreme, winter snowfall can temporarily cover panels, reducing production during already low-yield months.
Preventative Measures
To maximize solar production despite these challenges, several preventative measures can be implemented:
- Install panels with self-cleaning glass treatments that help shed snow and resist dirt buildup.
- Consider slightly steeper panel angles (beyond the optimal 43 degrees) if winter production is particularly important, as this helps snow slide off more easily.
- Implement regular maintenance schedules, particularly before winter and after pollen season.
- Use microinverters or power optimizers to minimize the impact of partial shading from nearby trees or structures.
- Consider bifacial panels that can capture reflected light, particularly useful during winter months when snow on the ground can increase reflectivity.
While Schelle's location isn't ideal for year-round solar production compared to sunnier regions, properly designed systems with the correct orientation can still provide significant energy generation, particularly from late spring through early autumn.
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 201 locations across Belgium. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Belgium by location
Solar output per kW of installed solar PV by season in Schelle
Seasonal solar PV output for Latitude: 51.1304, Longitude: 4.3397 (Schelle, Belgium), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 43° South in Schelle, Belgium
To maximize your solar PV system's energy output in Schelle, Belgium (Lat/Long 51.1304, 4.3397) throughout the year, you should tilt your panels at an angle of 43° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Schelle, Belgium
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Schelle, Belgium. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 43° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 35° South in Summer | 54° South in Autumn | 64° South in Winter | 43° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Schelle, Belgium
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Schelle, Belgium.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Schelle, Belgium
The landscape surrounding Schelle, Belgium, is characterized by a predominantly flat topography typical of the Flemish lowlands. Located in the province of Antwerp, Schelle sits within the Scheldt River valley, with an elevation generally ranging between 5 to 15 meters above sea level. This low-lying area forms part of the broader Belgian coastal plain that gradually rises eastward from the North Sea coast. The immediate vicinity of Schelle features gentle undulations rather than significant hills or valleys. The Scheldt River, a major waterway in the region, flows nearby and has historically shaped the local topography through sediment deposition and periodic flooding. The river's influence has created fertile alluvial soils across much of the surrounding countryside.
Natural and Built Environment
The region around Schelle represents a mix of built environments, agricultural land, and some remnant natural areas. Urban development is significant, with Antwerp's metropolitan area extending its influence throughout the region. Agricultural fields dominate the non-urbanized landscapes, creating open spaces with minimal topographical barriers. Small wooded areas and wetlands dot the landscape, particularly near the Scheldt and its tributaries. These natural features introduce minor variations to an otherwise flat terrain. Drainage canals and small streams further segment the landscape, creating a network of water management infrastructure that has been developed over centuries to control water levels in this low-lying region.Solar PV Suitability
When considering areas near Schelle that might be suitable for large-scale solar photovoltaic installations, several factors beyond just topography must be considered, including land availability, grid connection possibilities, and current land use patterns. The flat terrain surrounding Schelle offers favorable conditions for solar PV deployment from a purely topographical perspective. Flat landscapes simplify construction and installation while minimizing shading issues between solar panel rows. Areas east and southeast of Schelle, where agricultural land predominates and urban density decreases, present potential opportunities for larger installations. Former industrial sites near the Scheldt River could also offer brownfield redevelopment opportunities for solar installations. These locations often have existing grid connections and represent land with limited alternative uses. The port areas north of Schelle, extending toward Antwerp, contain numerous industrial facilities with large roof surfaces that could support commercial-scale solar deployments without consuming additional land. Agricultural areas present both opportunities and challenges. While the flat, open fields would be technically suitable for solar arrays, the productive agricultural land in Flanders is valuable and limited. Solar developments that incorporate agricultural use (agrivoltaics) might be more appropriate in these contexts than completely displacing food production. The western areas toward the broader Scheldt estuary include some protected natural zones and wetlands where development would be inappropriate or restricted. These areas serve important ecological functions and are generally unsuitable for large-scale solar development regardless of their topographical characteristics. In summary, the flat topography around Schelle provides technically favorable conditions for solar PV installations across much of the surrounding landscape. However, practical deployment will be constrained more by land use considerations, grid capacity, and planning regulations than by topographical limitations. The most promising areas combine favorable physical characteristics with appropriate current land use, such as industrial zones, commercial areas, and potentially some agricultural land where multiple uses could be accommodated.Belgium solar PV Stats as a country
Belgium ranks 19th in the world for cumulative solar PV capacity, with 6,585 total MW's of solar PV installed. This means that 6.60% of Belgium's total energy as a country comes from solar PV (that's 10th in the world). Each year Belgium is generating 569 Watts from solar PV per capita (Belgium ranks 5th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Belgium?
Yes, there are several incentives for businesses wanting to install solar energy in Belgium. The Belgian government offers a range of financial support measures for businesses that invest in renewable energy sources such as solar power. These include tax deductions, grants and subsidies, as well as access to low-interest loans. Additionally, the Flemish Energy Agency (VEA) provides free advice and guidance on how to make the most of these incentives.
Do you have more up to date information than this on incentives towards solar PV projects in Belgium? Please reach out to us and help us keep this information current. Thanks!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 2nd of May 2025
Last Updated: Wednesday 24th of September 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




