Herten, a city in North Rhine-Westphalia, Germany, presents a mixed picture for solar energy generation. Located in the Northern Temperate Zone, this area experiences significant seasonal variations in solar output throughout the year.
Seasonal Solar Performance
Summer stands out as the most productive season for solar energy in Herten, with an average daily output of 5.16 kWh per kW of installed solar capacity. Spring follows closely behind, generating 4.27 kWh per day. However, the colder months see a substantial drop in production, with autumn yielding 2.25 kWh per day and winter plummeting to a mere 1.09 kWh daily.
These figures highlight the stark contrast between the warm and cold seasons, emphasizing the importance of maximizing solar collection during the longer, sunnier days of spring and summer.
Optimal Panel Installation
To achieve the best year-round performance, fixed solar panels in Herten should be tilted at a 44-degree angle facing south. This orientation helps capture the most sunlight throughout the year, balancing the low winter sun with the higher summer sun path.
Environmental Considerations
While Herten's location is generally favorable for solar energy, there are some environmental factors to consider:
- Cloud cover: The region experiences frequent overcast conditions, particularly in autumn and winter, which can significantly reduce solar output.
- Precipitation: Rain and occasional snow can temporarily decrease panel efficiency and require regular cleaning.
To mitigate these issues, installers should consider using high-efficiency panels that perform well in low-light conditions. Additionally, implementing a regular cleaning schedule and potentially installing automated cleaning systems can help maintain optimal performance.
Conclusion
While Herten's solar potential is not ideal year-round, it still offers substantial opportunities for clean energy generation, especially during the warmer months. By optimizing panel placement and addressing environmental challenges, residents and businesses can effectively harness solar power to supplement their energy needs and contribute to a more sustainable future.
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 Herten
Seasonal solar PV output for Latitude: 51.5966, Longitude: 7.0918 (Herten, 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 44° South in Herten, Germany
To maximize your solar PV system's energy output in Herten, Germany (Lat/Long 51.5966, 7.0918) throughout the year, you should tilt your panels at an angle of 44° 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 Herten, 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 Herten, Germany. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 44° 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 | 44° 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 Herten, 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 Herten, 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 Herten, Germany
The area surrounding Herten, Germany, located at latitude 51.5966 and longitude 7.0918, is characterized by a relatively flat to gently rolling landscape typical of the North German Plain. This region, part of the larger Ruhr area, has been significantly shaped by human activity, particularly due to its industrial history. The topography of Herten and its immediate vicinity is predominantly low-lying, with subtle variations in elevation. The terrain is generally flat, with occasional small hills and shallow valleys. The average elevation in this area is approximately 50 to 100 meters above sea level. The landscape is a mix of urban development, agricultural fields, and patches of forested areas. To the north and east of Herten, the land remains mostly level, gradually transitioning into the Münsterland region. This area features open farmland interspersed with small woodlands and scattered settlements. To the south and west, the terrain becomes slightly more varied as it approaches the Ruhr River valley, with minor increases in elevation and more pronounced undulations in the landscape.
Suitability for Large-Scale Solar PV
When considering areas nearby Herten for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would ideally combine flat or gently sloping terrain, minimal shading from natural or man-made structures, and good access to existing infrastructure. The agricultural areas to the north and east of Herten present promising opportunities for solar PV development. These open spaces offer large, unobstructed plots of land with minimal shading issues. The flat terrain in these areas would simplify installation and reduce costs associated with land preparation. Former industrial sites and brownfields in the broader Ruhr region could also be excellent candidates for solar PV projects. These areas often have the advantage of existing infrastructure, including electrical grid connections, and their redevelopment for renewable energy purposes aligns with regional sustainability goals. It's important to note that while the topography around Herten is generally favorable for solar PV, the region's latitude means that solar irradiance is not as high as in southern Europe. Therefore, careful planning and optimization of panel placement would be crucial to maximize energy generation potential in this area.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: Saturday 15th of March 2025
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.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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