Weisenheim am Sand in Rheinland-Pfalz, Germany offers moderate solar energy potential throughout the year, though performance varies significantly between seasons.
Seasonal Solar Performance
Summer provides the strongest solar generation at this location, producing 5.50 kWh per day for each kilowatt of installed solar capacity. This represents peak performance when the sun is highest in the sky and daylight hours are longest. Spring offers good solar production at 4.50 kWh per day per kW, making it the second-best season for energy generation. The combination of increasing sun angle and generally clear weather creates favorable conditions. Autumn sees a notable decline to 2.54 kWh per day per kW as the sun's angle decreases and weather patterns shift toward the cloudier winter months. Winter presents the greatest challenge, with output dropping to just 1.21 kWh per day per kW. This low winter production is typical for Germany's northern temperate climate.Optimal Installation Setup
For maximum year-round energy production at Weisenheim am Sand, solar panels should be installed at a fixed tilt angle of 42 degrees facing south. This angle is calculated to optimize total annual output by accounting for the sun's varying position throughout the seasons and the location's specific latitude.Local Factors Affecting Solar Production
Several environmental and weather factors in this region can impact solar energy generation:- Frequent cloud cover, particularly during autumn and winter months, which significantly reduces solar irradiance
- Morning fog common in the Rhine Valley region that can delay peak production hours
- Snow accumulation during winter months that can completely block panels
- Dust and pollen buildup, especially during spring when local agriculture and vegetation are most active
Preventative Measures for Better Performance
To maximize solar production despite these challenges, several installation strategies can help. Installing panels with adequate tilt helps snow slide off naturally rather than accumulating. Regular cleaning schedules, particularly during spring pollen season and after dusty periods, maintain optimal light transmission. Proper spacing between panel rows prevents shading issues that become more problematic when the sun is lower during winter months. Installing micro-inverters or power optimizers can minimize the impact when individual panels are partially shaded or dirty. Ensuring panels have good ventilation underneath helps maintain efficiency during hot summer periods, while sturdy mounting systems protect against the region's occasional strong winds and weather events. Regular vegetation management around the installation site prevents shadows from growing trees or bushes that could reduce production over time.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 Weisenheim Am Sand
Seasonal solar PV output for Latitude: 49.5182, Longitude: 8.2539 (Weisenheim Am Sand, 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 42° South in Weisenheim Am Sand, Germany
To maximize your solar PV system's energy output in Weisenheim Am Sand, Germany (Lat/Long 49.5182, 8.2539) throughout the year, you should tilt your panels at an angle of 42° 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 Weisenheim Am Sand, 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 Weisenheim Am Sand, Germany. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 42° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 33° South in Summer | 52° South in Autumn | 63° South in Winter | 42° 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 Weisenheim Am Sand, 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 Weisenheim Am Sand, 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 Weisenheim Am Sand, Germany
Topography Around Weisenheim am Sand
Weisenheim am Sand sits in the Upper Rhine Plain, one of Germany's most distinctive geographical regions. This area forms part of the broader Rhine Rift Valley, characterized by remarkably flat terrain that stretches between the Vosges Mountains to the west and the Black Forest to the east. The landscape around this Rhineland-Palatinate municipality consists primarily of gentle, rolling plains with minimal elevation changes, creating an expansive agricultural region known for its fertile soils. The immediate vicinity features predominantly flat to gently undulating farmland, with elevations rarely exceeding modest hills. Sandy soils dominate much of the area, which explains the "am Sand" portion of the town's name, meaning "on the sand." These well-drained soils support extensive vineyards and agricultural fields that characterize the regional economy. The terrain gradually rises toward the Palatinate Forest to the southwest and the Odenwald hills to the northeast, but the transition remains gradual rather than abrupt. Water features include small streams and drainage channels that flow toward the Rhine River, located several kilometers to the east. These waterways have carved shallow valleys through the otherwise level landscape, though these depressions are typically subtle and don't significantly alter the overall flat character of the region.Optimal Areas for Large-Scale Solar Development
The extensive flat agricultural areas surrounding Weisenheim am Sand present excellent opportunities for large-scale solar photovoltaic installations. The most promising locations lie in the broad expanses of open farmland that stretch in all directions from the town center. These areas offer unobstructed southern exposures with minimal shading from trees or buildings, essential for maximizing solar energy capture throughout the day. The gently sloping fields to the south and southeast of the municipality would be particularly well-suited for solar development. These locations combine optimal orientation with easy access to existing infrastructure, including roads for construction and maintenance activities. The sandy, well-drained soils in these areas also facilitate easier installation of mounting systems and reduce concerns about waterlogging or ground instability. Areas of former agricultural land or less productive farming zones would represent ideal candidates for solar conversion, as they minimize conflicts with food production while taking advantage of the region's favorable topographical conditions. The flat terrain eliminates the need for extensive site preparation or grading, reducing both construction costs and environmental impact. Transportation infrastructure throughout the region provides good access for equipment delivery and ongoing maintenance operations. The proximity to existing electrical transmission networks, common in this developed agricultural region, would facilitate grid connection for large-scale solar installations. The absence of significant topographical barriers means that solar arrays could be positioned to avoid shading from adjacent installations while maintaining efficient land use patterns.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 13th 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.




