Solar Energy Potential in Anthisnes, Wallonia, Belgium
Anthisnes, Wallonia, Belgium, located at coordinates 50.4781, 5.519 in the Northern Temperate Zone, presents a moderate location for solar PV energy generation with significant seasonal variations. The energy production potential fluctuates considerably throughout the year, with distinct differences between summer and winter months. The seasonal energy output per kilowatt of installed solar capacity shows a clear pattern. Summer is the most productive season, generating 5.20 kWh per day for each kilowatt installed. Spring follows as the second most productive season with 4.57 kWh daily output. Autumn production drops to 2.40 kWh per day, while winter shows the lowest generation at only 1.13 kWh daily per kilowatt installed.Optimal Panel Installation
For fixed panel installations in Anthisnes, Wallonia, the ideal angle to maximize year-round solar production is 43 degrees facing South. This specific tilt angle has been calculated to capture the maximum possible sunlight throughout the year, accounting for the location's latitude and the Earth's elliptical orbit.Seasonal Considerations
The significant difference between summer (5.20 kWh/day) and winter (1.13 kWh/day) production indicates that Anthisnes experiences a nearly 80% reduction in solar generation potential during winter months. This makes the location somewhat challenging for year-round solar dependency without seasonal storage solutions or grid connectivity. The late spring through early autumn period (approximately May through September) represents the optimal time for solar energy generation in this location, with production gradually declining as days shorten and the sun's angle becomes less favorable in autumn and winter.Environmental and Weather Factors
Several environmental factors can potentially impact solar production in Anthisnes:- Cloud cover and rainfall: Belgium's climate includes frequent cloud cover and precipitation, particularly in winter months, which can significantly reduce solar irradiance reaching panels.
- Snow accumulation: Winter snowfall can temporarily cover panels, blocking sunlight until the snow melts or is removed.
- Morning fog: The region may experience fog, particularly in valley areas, which can delay morning solar production.
Preventative Measures
To maximize solar energy production despite these challenges, consider these installation strategies:- Install panels at the recommended 43-degree tilt to optimize year-round production and promote natural snow shedding in winter.
- Consider self-cleaning panel technologies or regular maintenance schedules to address dust and pollen accumulation.
- Implement micro-inverters or power optimizers to minimize the impact of partial shading from clouds or nearby obstructions.
- Position panels away from trees or structures that could cast shadows, especially during winter months when the sun's path is lower.
- Consider a slight increase in system size to compensate for the significant winter production decrease.
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 Anthisnes
Seasonal solar PV output for Latitude: 50.4781, Longitude: 5.519 (Anthisnes, 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 Anthisnes, Belgium
To maximize your solar PV system's energy output in Anthisnes, Belgium (Lat/Long 50.4781, 5.519) 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 Anthisnes, 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 Anthisnes, 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 | 63° 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 Anthisnes, 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 Anthisnes, 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 Anthisnes, Belgium
The region surrounding Anthisnes, Belgium presents a varied and picturesque topography characteristic of the eastern Belgian countryside. Situated in the province of Liège, Anthisnes lies within the transitional zone between the Condroz plateau and the Ardennes foothills. The landscape features gently rolling hills interspersed with shallow valleys, creating an undulating terrain that gradually rises toward the southeast. The immediate vicinity of Anthisnes displays elevation changes typically ranging between 200-300 meters above sea level. The terrain consists of a patchwork of agricultural fields, meadows, and scattered woodlands. Several small streams and tributaries of the Ourthe River have carved modest valleys throughout the area, contributing to the region's distinctive topographical character.
Surrounding Landscape Features
To the north and northwest of Anthisnes, the landscape gradually descends toward the Meuse Valley, featuring more gentle slopes and broader plateaus. The southwestern direction reveals similar rolling countryside that extends toward Huy. Moving eastward, the terrain becomes increasingly varied with more pronounced hills and deeper valleys approaching the Ardennes region. The local geology consists predominantly of limestone and sandstone formations, which have influenced the development of the characteristic undulating landscape. These geological features have created natural terraces and south-facing slopes throughout the region.Potential Areas for Solar PV Development
For large-scale solar photovoltaic installations, several areas in the vicinity of Anthisnes present favorable conditions. The most suitable locations would be found on the gently sloping south-facing hillsides that receive optimal solar exposure throughout the day. These areas benefit from reduced shadowing effects and favorable orientation toward the sun's path. Specifically, the plateaus extending to the north and northwest of Anthisnes offer substantial flat or gently inclined terrain that would minimize installation complexities and maximize exposure. These areas typically feature agricultural land with fewer forest obstructions, providing clear sky views essential for photovoltaic efficiency. The elevated plateaus between Anthisnes and nearby communities like Ouffet and Comblain-au-Pont also present viable options for solar development. These locations combine advantageous elevation with appropriate slope aspects, creating conditions conducive to effective solar energy capture. Areas to avoid would include the deeper valleys, particularly those running east-west, as these locations experience more significant shadowing effects from surrounding hills. Similarly, the densely forested sections to the southeast, approaching the Ardennes, would present challenges due to both shadowing and installation complications. The agricultural character of much of the surrounding landscape potentially allows for dual-use development, where solar installations might coexist with certain types of farming activities, maximizing land utilization while maintaining some agricultural productivity.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 17th of May 2025
Last Updated: Friday 24th of October 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




