Based on the information given, the location at Grandmetz, Wallonia, Belgium is not ideal for generating energy via solar PV all year round. This is because of its seasonal variations in sunlight exposure and weather conditions.
In simple terms, a solar panel's electricity output depends largely on how much sunlight it gets. In summer and spring at this location, you can expect to generate quite a bit of electricity - 5.40 kilowatt-hours (kWh) per day in summer and 4.98 kWh/day in spring per kilowatt (kW) of installed solar power capacity. This means that these are the best times of year for generating solar power here.
On the other hand, autumn and winter see less sunlight leading to lower outputs - only about 2.55 kWh/day in autumn and as low as 1.19 kWh/day in winter per kW of installed capacity.
If you're installing fixed panels at this location, tilting them towards south by an angle of 43 degrees will help maximize their total yearly production from solar PV.
However there could be local factors like environmental or weather conditions that might affect your ability to generate electricity from these panels throughout the year. For example:
1) Cloudy Weather: Belgium has overcast skies most days which may reduce sunlight reaching your panels.
Prevention: Consider using thin-film panels or bifacial modules which perform better under diffused light conditions compared to traditional monocrystalline or polycrystalline modules.
2) Snowfall: During winter months snow can accumulate on your panels blocking sunlight.
Prevention: Regularly clean off any snow accumulation from your panels during winters; but do it carefully so as not to damage them!
3) Dust & Debris: These can also block sunlight if allowed to accumulate on panel surfaces.
Prevention: Regular cleaning helps prevent dust buildup thereby improving efficiency.
Remember though that while these measures can improve your panels' performance, the location's inherent sunlight availability will always be a limiting factor.
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 Grandmetz
Seasonal solar PV output for Latitude: 50.6265, Longitude: 3.6355 (Grandmetz, 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 Grandmetz, Belgium
To maximize your solar PV system's energy output in Grandmetz, Belgium (Lat/Long 50.6265, 3.6355) 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 Grandmetz, 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 Grandmetz, 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 Grandmetz, 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 Grandmetz, 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 Grandmetz, Belgium
Grandmetz, Belgium is characterized by a relatively flat topography with gentle rolling hills. The area is predominantly agricultural with scattered patches of forests and small towns. This type of landscape could potentially be well suited for solar PV installations, particularly on the open farmland.
In terms of specific areas best suited for large-scale solar PV, it would depend on a variety of factors including land availability and ownership, proximity to power grids for energy transmission, local zoning laws and regulations among other things. However generally speaking:
1. Open farmlands: These usually have good sun exposure without obstruction from trees or buildings making them ideal locations.
2. Industrial zones: If there are any industrial zones nearby they can also be suitable as they often have existing infrastructure in place.
3. Unused lands or brownfield sites: These can also be potential sites if available.
It's important to note that while the physical topography might make these places suitable for solar farms, other aspects such as environmental impact assessments (e.g., effect on local wildlife), social acceptance (e.g., visual impact on the landscape), economic feasibility etc., need to be taken into account before deciding on a location for large-scale solar PV installations.
A detailed site-specific study would provide more accurate information about which areas around Grandmetz are most appropriate for this purpose.
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: Tuesday 28th of May 2024
Last Updated: Monday 21st of July 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.




