Bad Breisig, located in Rheinland-Pfalz, Germany, presents a moderately suitable location for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone position.
Seasonal Solar Performance
The location shows strong seasonal contrasts in solar energy production. Summer delivers the highest output at 5.08 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows as the second-best performing season with 4.38 kWh per day per kW, indicating excellent solar potential during these warmer months. Autumn production drops considerably to 2.37 kWh per day per kW, while winter presents the most challenging period with only 1.11 kWh per day per kW. This dramatic winter reduction is typical for locations at this latitude, where shorter days and lower sun angles significantly impact solar panel efficiency. For optimal year-round performance at Bad Breisig, solar panels should be installed at a fixed tilt angle of 43 degrees facing south. This angle maximizes total annual energy production by accounting for the sun's varying elevation throughout the year and the location's specific latitude.Local Environmental Challenges
Several environmental factors in the Rhine Valley region around Bad Breisig can potentially impact solar energy production:- River fog and mist from the nearby Rhine River, particularly during autumn and winter months
- Industrial emissions and air pollution from the Rhine industrial corridor
- Frequent cloud cover typical of the oceanic climate influence
- Potential for snow accumulation during winter months
Preventative Installation Measures
To maximize solar energy production despite these challenges, several installation strategies should be considered. Panels should be mounted with adequate spacing to ensure proper air circulation, which helps prevent moisture buildup and reduces the impact of fog. The 43-degree tilt angle not only optimizes sun exposure but also encourages natural snow shedding and rain runoff, reducing maintenance needs. Installing panels with anti-reflective coatings can help maintain efficiency even during overcast conditions common in this region. Regular cleaning schedules become particularly important due to potential dust and pollution accumulation from nearby industrial activities along the Rhine corridor. Proper drainage systems around the installation area will help manage the higher precipitation levels typical of this climate zone, while ensuring panels are positioned away from potential shading from deciduous trees that may affect performance during the crucial spring and summer months when solar production peaks.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 Bad Breisig
Seasonal solar PV output for Latitude: 50.5092, Longitude: 7.2883 (Bad Breisig, 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 Bad Breisig, Germany
To maximize your solar PV system's energy output in Bad Breisig, Germany (Lat/Long 50.5092, 7.2883) 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 Bad Breisig, 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 Bad Breisig, 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 | 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 Bad Breisig, 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 Bad Breisig, 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 Bad Breisig, Germany
Topographical Features of Bad Breisig
Bad Breisig sits in a particularly scenic section of the Rhine Valley in western Germany, where the landscape is characterized by rolling hills, river terraces, and the dramatic Rhine Gorge. The town itself is positioned on the eastern bank of the Rhine River at an elevation of approximately 60 meters above sea level, nestled between the river and the rising terrain of the Rhineland hills. The immediate area around Bad Breisig features a mix of gentle slopes rising from the Rhine floodplain and steeper hillsides that climb toward the Eifel region to the west and the Westerwald to the east. The Rhine Valley here is relatively narrow compared to areas further north, creating a landscape of terraced vineyards, forested hillsides, and agricultural fields that step up from the river in distinct elevation bands. To the west of the Rhine, the terrain rises more dramatically toward the volcanic Eifel mountains, while the eastern side where Bad Breisig is located shows a more gradual ascent toward the Westerwald plateau. The local topography includes numerous small valleys and tributaries that have carved channels through the landscape over millennia, creating a complex pattern of ridges and hollows.Terrain Characteristics and Land Use
The slopes around Bad Breisig are predominantly covered with mixed deciduous and coniferous forests, particularly on the steeper gradients above 200 meters elevation. Lower elevations feature a combination of agricultural land, including traditional Rhine Valley crops and the famous terraced vineyards that characterize this stretch of the river valley. The soil composition varies from alluvial deposits near the Rhine to weathered volcanic material and loess on the higher terraces and hillsides. This diverse geological foundation has created different microclimates and land use patterns across relatively short distances, with south-facing slopes receiving significantly more direct sunlight than north-facing aspects. Many areas show evidence of historical terracing for agriculture and viticulture, creating stepped landscapes that follow the natural contours of the hills. These terraced areas, while visually striking, can present challenges for large-scale development due to their irregular geometry and the need to preserve cultural heritage sites.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Bad Breisig would be the elevated plateaus and gentle south-facing slopes found primarily to the east and southeast of the town. These areas, typically between 150 and 300 meters elevation, offer relatively flat or gently sloping terrain that can accommodate extensive solar arrays without excessive grading or complex mounting systems. The agricultural fields on the higher terraces present excellent opportunities for solar development, particularly those areas that are currently used for less intensive farming or have been converted from agricultural use. These locations benefit from unobstructed sky access and are generally free from the shading issues that affect lower elevations near forested areas. Areas on the Westerwald plateau, accessible via the network of rural roads that climb eastward from Bad Breisig, offer some of the best potential for large installations. The relatively flat topography at these higher elevations, combined with existing agricultural land use, makes them ideal candidates for utility-scale solar projects. The elevation also provides advantages in terms of reduced atmospheric interference and excellent exposure to solar radiation throughout the day. The gentle ridgelines that run parallel to the Rhine Valley, particularly those with southern exposures, represent another category of prime locations. These elevated positions avoid the valley fog that can occasionally affect lower elevations and provide consistent exposure conditions across large areas suitable for extensive solar installations.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 26th of July 2025
Last Updated: Thursday 7th of August 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.




