Langwedel, Schleswig-Holstein, Germany presents a moderately challenging location for year-round solar energy generation, with significant seasonal variations typical of its Northern Temperate Zone position.
Seasonal Solar Performance
The solar energy output at this location shows dramatic seasonal differences. Summer months deliver the strongest performance at 5.36kWh per day per kW of installed solar capacity, making this the prime solar generation period. Spring follows as the second-best season with 4.07kWh per day per kW, offering good energy production as daylight hours increase. Autumn sees a notable decline to 1.82kWh per day per kW, while winter presents the most challenging conditions with only 0.83kWh per day per kW. This winter output represents less than one-sixth of the summer production, highlighting the location's strong seasonal dependency.Optimal Installation Setup
For fixed solar panel installations at Langwedel, the ideal tilt angle is 45 degrees facing south to maximize total year-round energy production. This angle is calculated based on the location's latitude and weighted solar irradiance data throughout the year.Local Factors Affecting Solar Production
Several environmental and weather factors in Schleswig-Holstein can significantly impact solar energy generation:- Maritime climate effects from the North Sea create frequent cloud cover and precipitation
- High humidity levels can reduce solar irradiance reaching the panels
- Strong coastal winds carrying salt spray can corrode equipment and reduce panel efficiency
- Snow accumulation during winter months can completely block solar panels
Preventative Measures for Better Performance
To combat these local challenges and optimize solar energy production, several installation strategies prove effective:- Install panels with adequate tilt (the recommended 45 degrees) to promote natural snow shedding and rain runoff
- Use anti-reflective and hydrophobic coatings on panels to minimize moisture retention and improve light transmission
- Choose marine-grade mounting hardware and electrical components designed to resist salt corrosion
- Implement regular cleaning schedules to remove salt deposits, dirt, and organic matter
- Consider micro-inverters or power optimizers to minimize impact when individual panels are partially shaded or soiled
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 Langwedel
Seasonal solar PV output for Latitude: 54.2113, Longitude: 9.9227 (Langwedel, 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 45° South in Langwedel, Germany
To maximize your solar PV system's energy output in Langwedel, Germany (Lat/Long 54.2113, 9.9227) throughout the year, you should tilt your panels at an angle of 45° 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 Langwedel, 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 Langwedel, Germany. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 45° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 38° South in Summer | 56° South in Autumn | 67° South in Winter | 46° 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 Langwedel, 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 Langwedel, 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 Langwedel, Germany
Topographical Features of Langwedel and Surrounding Region
Langwedel sits within the North German Plain, a vast lowland area that extends across much of northern Germany. This region is characterized by gently rolling terrain with minimal elevation changes, creating an expansive landscape of agricultural fields, scattered woodlands, and small settlements. The area around Langwedel features predominantly flat to gently undulating countryside, with elevations rarely exceeding 50 meters above sea level.
The landscape has been shaped by glacial activity during past ice ages, leaving behind fertile soils and a relatively uniform topography. Small streams and drainage channels crisscross the region, supporting the agricultural activities that dominate land use. The terrain consists mainly of open farmland interspersed with patches of mixed forest and small rural communities connected by a network of country roads.
Moving outward from Langwedel, the topographical character remains consistently gentle across the broader region. Rolling hills provide subtle variations in elevation, but steep slopes or significant geographical obstacles are notably absent. This creates extensive areas of accessible, relatively flat land that extends for many kilometers in all directions.
Optimal Areas for Large-Scale Solar Development
The expansive agricultural plains surrounding Langwedel present excellent opportunities for large-scale solar photovoltaic installations. The predominantly flat terrain eliminates concerns about shading from topographical features and provides ideal conditions for ground-mounted solar arrays. Areas to the south and southwest of Langwedel would be particularly well-suited, as these locations combine favorable terrain with optimal solar orientation.
The gently rolling farmland extending eastward toward the Elbe River valley offers another promising zone for solar development. This area features minimal tree cover and consists largely of open agricultural fields that could potentially accommodate extensive solar installations. The consistent elevation and lack of significant geographical barriers would facilitate both construction and maintenance access.
Fields and cleared areas to the north and northwest of Langwedel also present viable options for solar development. The uniform topography in these directions provides unobstructed access to sunlight throughout the day, while the existing agricultural road network would support the infrastructure requirements of large-scale installations. The absence of significant elevation changes means that extensive areas could be developed without the need for substantial site preparation or grading work.
The region's gentle topography and predominantly agricultural land use create an environment where large solar installations could be integrated with minimal disruption to the existing landscape character. The consistent terrain conditions across wide areas provide flexibility in site selection and the potential for developing multiple large-scale facilities within the broader region.
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: Sunday 6th of July 2025
Last Updated: Wednesday 6th 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.




