Solar PV Analysis of Pettnau, Austria
Pettnau, Tyrol, Austria, situated at latitude 47.2853 and longitude 11.1813, presents a moderately favorable location for solar PV energy generation throughout the year. This Northern Temperate Zone location experiences significant seasonal variations in solar energy production, which is typical for regions at similar latitudes.
Seasonal Solar Performance
The solar energy output in Pettnau varies considerably across the seasons. Summer stands out as the most productive period, with an average daily output of 5.65 kWh per kW of installed solar capacity. Spring follows closely, generating 4.63 kWh/day. Autumn sees a noticeable decrease to 3.10 kWh/day, while winter experiences the lowest output at 1.75 kWh/day.
These figures indicate that solar PV systems in Pettnau are most effective from late spring through early autumn. During these months, longer daylight hours and higher sun angles contribute to increased energy production. However, the substantial drop in winter output suggests that alternative or supplementary energy sources may be necessary during the colder months.
Optimal Panel Installation
To maximize year-round solar energy production in Pettnau, Tyrol, fixed solar panels should be installed at a tilt angle of 41 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental Considerations
While Pettnau's location is generally suitable for solar energy production, there are some environmental factors to consider:
- Snow accumulation in winter can significantly reduce panel efficiency. Installing panels at the recommended angle helps with snow shedding, but manual clearing may sometimes be necessary.
- The mountainous terrain of the Austrian Alps may cause shading issues, particularly in winter when the sun is lower in the sky. Careful site selection and potentially using micro-inverters can mitigate this problem.
To address these challenges, consider using high-efficiency panels that perform well in low-light conditions and implementing a robust mounting system to withstand potential snow loads. Regular maintenance, including cleaning and snow removal, will help ensure optimal performance year-round.
In conclusion, while Pettnau's location presents some challenges for solar PV generation, particularly in winter, it remains a viable option for renewable energy production. With proper planning and installation techniques, solar energy can contribute significantly to the local energy mix, especially during the more productive spring and summer months.
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 124 locations across Austria. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Austria by location
Solar output per kW of installed solar PV by season in Pettnau
Seasonal solar PV output for Latitude: 47.2853, Longitude: 11.1813 (Pettnau, Austria), 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 41° South in Pettnau, Austria
To maximize your solar PV system's energy output in Pettnau, Austria (Lat/Long 47.2853, 11.1813) throughout the year, you should tilt your panels at an angle of 41° 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 Pettnau, Austria
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 Pettnau, Austria. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 41° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 31° South in Summer | 50° South in Autumn | 61° South in Winter | 40° 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 Pettnau, Austria
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 Pettnau, Austria.
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 Pettnau, Austria
The area around Pettnau, Austria, is characterized by mountainous terrain typical of the Tyrolean Alps. Pettnau itself is situated in the Inn Valley, which is a long, relatively wide valley that runs through the heart of Tyrol. The village is nestled on the northern side of the valley, with steep mountain slopes rising behind it.
To the north of Pettnau, the landscape quickly becomes more rugged and elevated, with forested slopes giving way to rocky peaks. The Karwendel mountain range dominates this area, with several peaks reaching over 2,000 meters in altitude. South of the Inn River, which flows through the valley, the terrain is similarly mountainous, with the Stubai Alps rising in the distance.
The valley floor around Pettnau is relatively flat, consisting of a mix of agricultural land, small settlements, and infrastructure such as roads and railways. This area is at an elevation of approximately 600-700 meters above sea level, while the surrounding mountains can reach heights of over 2,500 meters.
Regarding large-scale solar PV installations, the topography of this region presents some challenges. The most suitable areas for such projects would likely be found on the valley floor or on gentler south-facing slopes. These locations would offer more space and better sun exposure compared to the steep, often forested mountain sides.
Specifically, areas to consider for solar PV installations might include:
- Open agricultural lands in the Inn Valley, particularly those with a slight southern tilt
- Cleared areas on the lower slopes of mountains facing south, where they receive maximum sunlight
- Existing industrial or commercial zones in nearby towns that have large, flat rooftops
However, it's important to note that the Alpine environment is sensitive, and any large-scale solar projects would need to carefully consider environmental impacts, local regulations, and potential conflicts with tourism or agriculture, which are important economic factors in this region. Additionally, the limited amount of flat land in the valley and the presence of snow in winter months may pose challenges for extensive solar PV deployment in this area.
Austria solar PV Stats as a country
Austria ranks 28th in the world for cumulative solar PV capacity, with 2,692 total MW's of solar PV installed. This means that 3.40% of Austria's total energy as a country comes from solar PV (that's 25th in the world). Each year Austria is generating 302 Watts from solar PV per capita (Austria ranks 14th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Austria?
Yes, there are several incentives for businesses wanting to install solar energy in Austria. The Austrian government offers a range of financial support measures, including grants and loans, as well as tax breaks and other incentives. Additionally, the Austrian Energy Agency (AEA) provides information on funding opportunities for renewable energy projects. Furthermore, businesses can benefit from the Feed-in Tariff (FiT), which guarantees a fixed price for electricity generated from renewable sources such as solar energy.
Do you have more up to date information than this on incentives towards solar PV projects in Austria? 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 24th of September 2024
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
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.
