Frechen, North Rhine-Westphalia, Germany is in a decent location for year-round solar energy production, but it's not the best. Solar panels here can produce good amounts of electricity during summer and spring with 5.13kWh/day and 4.43kWh/day respectively per kilowatt installed. However, the output drops significantly in autumn and winter to 2.42kWh/day and 1.13kWh/day respectively.
This means that if you're planning on using solar power as your main source of energy all year round at this location, you might need to have a backup plan or storage system especially for autumn and winter when the electricity produced is less than half compared to summer.
The ideal angle for installing solar panels at this location is tilted 43 degrees towards the south which helps to maximize total yearly production from solar PV.
As far as environmental factors go that could hinder solar production in Frechen, one significant issue could be weather patterns such as cloud cover or snowfall during autumn and winter which reduce sunlight exposure on the panels lowering their efficiency.
Preventative measures that can be taken when installing solar include setting up systems for clearing snow off of panels if necessary or choosing panel locations where they are less likely to be shaded by trees or buildings throughout different times of day/year.
It's also worth noting that while these measures can help improve efficiency somewhat overall; nothing will change the fact that there's simply less sunlight available during certain times of year due to Frechen’s geographical position within Northern Temperate Zone.
So while this isn't an "ideal" location for constant high-output solar energy generation it still has potential especially with proper installation techniques taking into account local conditions like seasonal weather variations.
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 919 locations across Germany. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Germany by location
Solar output per kW of installed solar PV by season in Frechen
Seasonal solar PV output for Latitude: 50.9164, Longitude: 6.8071 (Frechen, Germany), 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 Frechen, Germany
To maximize your solar PV system's energy output in Frechen, Germany (Lat/Long 50.9164, 6.8071) 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 Frechen, Germany
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 Frechen, Germany. 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 Frechen, Germany
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 Frechen, Germany.
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 Frechen, Germany
Frechen, Germany is located in the state of North Rhine-Westphalia and is part of the Rhein-Erft-Kreis district. The topography around Frechen is mostly flat with gentle slopes, which are typical in most parts of North Rhine-Westphalia. The region has a mix of urban areas and open fields.
As for solar PV potential, it would typically be best suited for large-scale installations on flat or gently sloping land that gets plenty of sunshine without too much cloud cover or shading from trees or buildings. Given this criteria, open fields around Frechen could potentially be suitable locations for large-scale solar PV projects.
However, other factors such as local regulations regarding land use and environmental impact would also need to be considered before deciding on a location for such a project. Furthermore, Germany's weather may not always provide optimal conditions for solar power generation due to its relatively high latitude and often cloudy conditions.
In general terms though, southern-facing slopes (in Northern Hemisphere) are usually better suited to harnessing solar energy because they receive more sunlight throughout the year than northern-facing ones. But since Frechen area is mostly flat, any open space with little to no shade can be utilized effectively given proper planning and design considerations.
It's important to note that despite these challenges, Germany has been very successful in implementing renewable energy sources including solar power into their energy grid - so while there might be some limitations due to geographical location and climate conditions - it’s definitely feasible with appropriate technology solutions.
Germany solar PV Stats as a country
Germany ranks 4th in the world for cumulative solar PV capacity, with 58,461 total MW's of solar PV installed. This means that 9.70% of Germany's total energy as a country comes from solar PV (that's 3rd in the world). Each year Germany is generating 702 Watts from solar PV per capita (Germany ranks 3rd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Germany?
Yes, there are a few incentives for businesses wanting to install solar energy in Germany. These include feed-in tariffs, which guarantee businesses a price per kilowatt hour of electricity produced from their solar system; tax incentives such as the reduction of corporate income taxes; and subsidies from regional governments or utilities. Additionally, Germany's Renewable Energy Sources Act (EEG) provides additional support for projects that involve renewable energies.
Do you have more up to date information than this on incentives towards solar PV projects in Germany? 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 4th of June 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.




