Solar energy production at Lubbeek, Flanders, Belgium (50.8847, 4.8388) shows significant seasonal variation throughout the year. Located in the Northern Temperate Zone, this location experiences distinct seasonal patterns in solar electricity generation potential.
Seasonal Solar Production
The solar electricity output in Lubbeek varies considerably across seasons. Summer is the most productive period, generating 5.20 kWh per day for each kilowatt of installed solar capacity. Spring follows closely with 4.57 kWh/day per kW installed. Production drops substantially in autumn to 2.40 kWh/day, while winter sees the lowest output at just 1.13 kWh/day per kW installed.
This pattern creates a nearly 5:1 ratio between the best and worst production months, with summer generating more than four times the electricity of winter months. The substantial difference highlights how seasonal this location is for solar energy production.
Optimal Panel Installation
For fixed solar panel installations in Lubbeek, Flanders, the ideal tilt angle to maximize year-round energy production is 43 degrees facing South. This angle is calculated specifically for this latitude to optimize annual solar capture, accounting for the Earth's elliptical orbit and seasonal sun angles.
Environmental and Weather Considerations
Several factors can impact solar production at this Belgian location:
- Frequent cloud cover, particularly during winter months, significantly reduces solar radiation reaching panels
- Occasional snowfall in winter can cover panels and temporarily halt production
- Morning fog, common in this region, can delay peak production hours
- Moderate rainfall throughout the year may reduce overall efficiency
To mitigate these challenges, solar installations in Lubbeek should incorporate self-cleaning panel technologies or regular maintenance schedules to remove snow and debris. Slightly steeper panel angles (beyond the optimal 43 degrees) might be considered to facilitate snow sliding off panels. Additionally, high-efficiency panels designed for diffuse light conditions will perform better during cloudy periods typical of Belgian weather.
Overall, while Lubbeek isn't ideal for year-round solar production compared to sunnier regions, the strong summer and spring performance can still make solar installations worthwhile, especially with proper system design accounting for local conditions.
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 Lubbeek
Seasonal solar PV output for Latitude: 50.8847, Longitude: 4.8388 (Lubbeek, 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 Lubbeek, Belgium
To maximize your solar PV system's energy output in Lubbeek, Belgium (Lat/Long 50.8847, 4.8388) 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 Lubbeek, 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 Lubbeek, 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 |
|---|---|---|---|
| 34° South in Summer | 53° 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 Lubbeek, 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 Lubbeek, 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 Lubbeek, Belgium
The landscape surrounding Lubbeek, Belgium presents a gently undulating topography characteristic of the eastern part of Flemish Brabant province. Situated approximately 30 kilometers east of Brussels, Lubbeek lies within the transitional zone between the flat landscapes of northern Flanders and the more pronounced hills of the Hageland region to the east. The terrain around Lubbeek features subtle elevation changes, with modest hills and shallow valleys creating a rolling countryside. Elevations in the area typically range between 30 and 90 meters above sea level, with gradual slopes rather than steep inclines. This gentle topography has historically made the region suitable for agriculture, with numerous farms and fields dotting the landscape.
Hydrological Features
Several small streams and brooks traverse the area, including the Molenbeek and Winge, which have carved shallow valleys through the countryside over time. These waterways form part of the Demer river basin, eventually flowing eastward toward the Scheldt river system. The presence of these water features has shaped the local topography, creating natural depressions and gentle slopes throughout the region.Land Use Patterns
The Lubbeek area exhibits a mixed landscape of agricultural fields, scattered woodlands, and residential developments. Open farmland predominates, with fields dedicated to crops such as sugar beets, potatoes, and grains. Interspersed among these agricultural areas are patches of deciduous forest, particularly along stream valleys and on steeper slopes less suitable for farming.Solar PV Potential Areas
For large-scale solar photovoltaic development, several nearby areas offer favorable conditions based on topographical considerations: The agricultural plateaus north and northeast of Lubbeek present some of the most suitable terrain for large-scale solar installations. These areas feature relatively flat, open farmland with minimal shading from trees or buildings. The gentle south-facing slopes found in these locations would optimize solar exposure throughout the day. The slightly elevated terrain between Lubbeek and Tienen, approximately 10-15 kilometers to the southeast, also offers promising conditions. This area provides expansive agricultural fields with favorable orientation and minimal topographical barriers to sunlight. Former industrial or commercial zones along the E314 motorway corridor, which runs several kilometers north of Lubbeek, could provide suitable locations for solar development. These areas often feature large, flat surfaces with existing infrastructure connections and minimal ecological sensitivity.Topographical Limitations
Certain topographical features in the region present challenges for large-scale solar development. The more densely wooded areas, particularly in the stream valleys and on steeper slopes, would require significant clearing and potentially create erosion concerns if developed. Additionally, the areas immediately surrounding residential centers like Lubbeek, Boutersem, and Bierbeek have more fragmented land ownership patterns and greater potential for shading from buildings and trees. The region's subtle but persistent slopes also necessitate careful site selection to avoid northern-facing inclines, which would reduce solar efficiency. While the overall gentle nature of the topography is generally favorable for solar development, site-specific assessments would be essential to identify optimal locations that balance solar exposure with minimal environmental impact.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!
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 26th of April 2025
Last Updated: Thursday 11th 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.
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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.




