Solar PV Analysis of Aspach, Germany
Aspach, located in Baden-Württemberg, Germany, presents a mixed picture for solar energy generation throughout the year. Situated in the Northern Temperate Zone, this location experiences significant seasonal variations in solar output, which impacts the overall efficiency of photovoltaic (PV) systems.
Seasonal Solar Performance
The solar energy production in Aspach fluctuates considerably across the four meteorological seasons. Summer stands out as the most productive period, with an average daily output of 5.59 kWh per kW of installed solar capacity. Spring follows as the second-best season, generating 4.56 kWh/day. Autumn sees a significant drop to 2.81 kWh/day, while winter experiences the lowest output at just 1.37 kWh/day.
These figures indicate that Aspach's location is most favorable for solar energy production during the warmer months, particularly from late spring through early autumn. During this period, longer days and higher sun angles contribute to increased solar irradiance, resulting in better PV performance.
Optimal Panel Installation
To maximize year-round solar energy production in Aspach, fixed solar panels should be tilted at an angle of 42 degrees facing south. This optimal angle takes into account the location's latitude and the sun's path throughout the year, ensuring the best possible exposure to sunlight across all seasons.
Environmental and Weather Considerations
While Aspach's location is generally suitable for solar energy production, there are some factors that could potentially impact PV system performance:
- Cloud cover: The region experiences frequent cloudy days, especially during autumn and winter, which can reduce solar irradiance.
- Snow: Winter snowfall may temporarily cover solar panels, reducing their efficiency.
To mitigate these issues, consider installing panels at a steeper angle to promote snow sliding off and using high-efficiency panels that perform better in low-light conditions. Regular maintenance, including snow removal and panel cleaning, can also help maintain optimal performance.
In conclusion, while Aspach's location presents challenges for year-round solar energy production, particularly during the winter months, it still offers significant potential for solar PV systems, especially during the summer and spring seasons. With proper installation and maintenance, solar energy can be a viable renewable energy source for this area.
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 Aspach
Seasonal solar PV output for Latitude: 48.9611, Longitude: 9.395 (Aspach, 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 Aspach, Germany
To maximize your solar PV system's energy output in Aspach, Germany (Lat/Long 48.9611, 9.395) 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 Aspach, 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 Aspach, 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 |
|---|---|---|---|
| 32° South in Summer | 52° South in Autumn | 62° South in Winter | 41° 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 Aspach, 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 Aspach, 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 Aspach, Germany
The area around Aspach, Germany, is characterized by a diverse and picturesque landscape typical of the Baden-Württemberg region. The topography is generally hilly, with gentle slopes and rolling terrain dominating the scenery. This part of Germany is situated in the foothills of the Swabian-Franconian Forest, which contributes to its undulating nature.
The immediate vicinity of Aspach features a mix of agricultural land, small forests, and scattered settlements. The terrain gradually rises as you move eastward towards the more densely forested areas. To the west, the land tends to be more open, with broader valleys and gentler inclines. Small streams and creeks crisscross the landscape, forming shallow valleys between the hills.
In terms of elevation, Aspach sits at approximately 300 meters above sea level, with surrounding hills reaching heights of up to 400-500 meters. This moderate elevation change creates a varied topography that includes both exposed hilltops and sheltered valleys.
When considering areas nearby that would be most suited to large-scale solar PV installations, several factors come into play. The ideal locations would be relatively flat or gently sloping areas with good sun exposure and minimal shading from trees or buildings. Based on the topography of the region, the most suitable areas for solar PV would likely be found in the following locations:
1. The more open, agricultural lands to the west and southwest of Aspach would be prime candidates. These areas tend to have fewer trees and more expansive fields, providing ample space and good sun exposure for solar panels.
2. Hilltops and south-facing slopes in the vicinity could also be suitable, as they often receive more direct sunlight throughout the day. However, care would need to be taken to ensure that the incline is not too steep for efficient installation and maintenance of solar panels.
3. Abandoned or underutilized industrial areas, if present in the region, could be repurposed for solar PV installations. These sites often have large, flat surfaces ideal for panel placement.
It's important to note that while the topography plays a significant role in determining suitable locations for solar PV, other factors such as local zoning laws, grid connectivity, and environmental considerations would also need to be taken into account when planning large-scale solar installations in the Aspach 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: Tuesday 23rd of July 2024
Last Updated: Monday 21st of July 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.
