Ham, Flanders, Belgium, located in the Northern Temperate Zone, presents a moderately suitable location for solar PV energy generation, though with significant seasonal variations that are typical for this latitude.
Seasonal Solar Performance
The solar energy output at Ham varies dramatically throughout the year. Summer provides the strongest performance at 5.29 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring follows as the second-best season with 4.49 kWh per day per kW, offering nearly comparable output to summer months. Autumn sees a notable decline to 2.26 kWh per day per kW, while winter presents the most challenging conditions with only 1.11 kWh per day per kW. This represents a nearly five-fold difference between peak summer and winter production, highlighting the importance of seasonal planning for solar installations. For optimal year-round performance, fixed solar panels at Ham should be tilted at 43 degrees facing south. This angle maximizes total annual energy production by accounting for the sun's changing position throughout the seasons and the varying solar irradiance levels at this latitude.Local Factors Affecting Solar Production
Several environmental and weather factors in Ham, Flanders, Belgium, can significantly impact solar energy generation:- Frequent cloud cover and overcast conditions typical of Belgium's maritime temperate climate
- High humidity levels that can reduce solar panel efficiency
- Regular precipitation throughout the year, including snow in winter months
- Atmospheric haze and fog, particularly during autumn and winter
- Dust and debris accumulation from agricultural activities in the surrounding rural areas
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered. Regular panel cleaning schedules are essential, particularly after dust storms or heavy agricultural activity periods. Installing panels with adequate spacing allows for proper air circulation, reducing moisture buildup and improving cooling efficiency. Choosing high-quality panels with anti-reflective coatings can help capture more diffused light during cloudy conditions, which are common in Belgium. Additionally, installing monitoring systems allows for quick identification of performance issues caused by weather-related factors. Proper drainage systems around solar installations prevent water pooling and reduce the risk of damage from heavy rainfall. Snow guards or heating elements may be beneficial for winter months to prevent snow accumulation that could block panels entirely during the already low-production winter season.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 Ham
Seasonal solar PV output for Latitude: 51.0995, Longitude: 5.1602 (Ham, 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 Ham, Belgium
To maximize your solar PV system's energy output in Ham, Belgium (Lat/Long 51.0995, 5.1602) 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 Ham, 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 Ham, 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 Ham, 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 Ham, 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 Ham, Belgium
Topographical Characteristics Around Ham, Belgium
Ham is situated in the province of Limburg in northeastern Belgium, positioned within the gently undulating landscape typical of the Flemish region. The terrain around this small municipality is characterized by relatively modest elevation changes, with the land gradually rising and falling across rolling hills that rarely exceed 100 meters above sea level. This area forms part of the broader Campine region, which extends across the Belgian-Dutch border and features a mix of sandy soils, heathlands, and agricultural fields.
The topography consists primarily of gentle slopes and broad valleys carved by small waterways over millennia. The Demer River system influences the local drainage patterns, creating subtle depressions and slightly elevated ridges throughout the landscape. These elevation variations are typically gradual rather than steep, with most slopes ranging from nearly flat to moderate inclines of no more than 5-10 degrees.
The surrounding countryside is predominantly agricultural, featuring large open fields interspersed with patches of woodland and scattered farm buildings. The relatively flat to gently rolling nature of the terrain has historically made it well-suited for farming, resulting in a landscape where natural vegetation has largely given way to cultivated land and managed forests.
Optimal Areas for Large-Scale Solar Installations
The topographical conditions around Ham present several advantages for large-scale solar photovoltaic installations. The most suitable areas would be the broad, gently sloping fields that face south or southwest, as these orientations maximize exposure to solar radiation throughout the day. The agricultural plains extending to the south and southeast of Ham offer particularly promising opportunities, where large tracts of relatively flat land could accommodate extensive solar arrays with minimal grading or site preparation.
The elevated ridges and gentle hillsides that slope toward the south represent prime locations for solar development. These areas benefit from good drainage, reduced risk of flooding, and optimal angles for solar panel placement. The slightly elevated terrain also helps minimize potential shading issues from surrounding vegetation or structures, while the gentle gradients allow for efficient installation and maintenance access.
Areas to the west and northwest of Ham also show potential, particularly where the landscape opens into broader agricultural zones with minimal tree cover. The key consideration in these locations would be ensuring adequate southern exposure while taking advantage of the naturally occurring slopes that could enhance panel positioning.
The most challenging areas for solar development would be the lower-lying zones near waterways, where seasonal flooding might pose risks, and the more heavily wooded sections where tree removal would be necessary. Additionally, the steeper slopes, though few in this region, would require more complex mounting systems and could face issues with soil stability during construction and operation.
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 July 2025
Last Updated: Thursday 7th of August 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.




