Solar PV Analysis of Znojmo, Czechia
The location of Znojmo, South Moravian, Czechia, situated at 48.8519°N, 16.0465°E, presents a mixed picture for solar PV energy generation throughout the year. This Northern Temperate Zone location experiences significant seasonal variations in solar energy production, which affects the overall efficiency of solar installations.
Seasonal Solar Performance
Solar energy production in Znojmo peaks during the summer months, with an impressive daily output of 6.42 kWh per kW of installed capacity. Spring follows as the second most productive season, generating 4.55 kWh per day. However, autumn sees a considerable drop to 2.87 kWh per day, while winter performance plummets to a mere 1.29 kWh per day.
These figures highlight the stark contrast between summer and winter production, with summer generating nearly five times more energy than winter. This variability poses challenges for year-round reliance on solar energy in Znojmo.
Optimal Panel Placement
To maximize year-round solar energy production in Znojmo, South Moravian, 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, taking into account the region's latitude and seasonal sun positions.
Environmental and Weather Factors
Several factors can impact solar energy production in Znojmo:
- Snow accumulation in winter can significantly reduce panel efficiency.
- Frequent cloudy days, especially during autumn and winter, can diminish solar output.
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 panel cleaning and maintenance are also crucial to ensure optimal performance.
Conclusion
While Znojmo's location is not ideal for year-round solar energy production, it still offers significant potential, especially during spring and summer. By optimizing panel placement and addressing environmental challenges, solar PV can be a viable renewable energy source for this Czech city, albeit with the need for alternative energy sources during the less productive 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 74 locations across Czechia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Czechia by location
Solar output per kW of installed solar PV by season in Znojmo
Seasonal solar PV output for Latitude: 48.8519, Longitude: 16.0465 (Znojmo, Czechia), 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 Znojmo, Czechia
To maximize your solar PV system's energy output in Znojmo, Czechia (Lat/Long 48.8519, 16.0465) 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 Znojmo, Czechia
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 Znojmo, Czechia. 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 |
|---|---|---|---|
| 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 Znojmo, Czechia
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 Znojmo, Czechia.
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 Znojmo, Czechia
The area around Znojmo, located in the South Moravian Region of Czechia, features a diverse and picturesque topography. The town itself is situated on a rocky promontory overlooking the Dyje (Thaya) River, which has carved a deep valley through the landscape. This river valley is one of the most prominent features of the local terrain.
The surrounding countryside is characterized by gently rolling hills and plateaus, typical of the transition zone between the Bohemian-Moravian Highlands to the north and the flatter lands of the Dyje-Svratka Valley to the south. The elevation in this region generally ranges from about 200 to 400 meters above sea level, with some higher points reaching up to 500 meters.
To the southwest of Znojmo lies the Podyjí National Park, which features a more rugged landscape with steep, forested slopes along the Dyje River. This area is known for its dramatic rock formations and diverse ecosystems.
The region around Znojmo also includes areas of agricultural land, particularly vineyards and orchards, which thrive in the relatively mild climate and fertile soils of South Moravia. These cultivated areas tend to occupy the flatter or gently sloping terrain.
Areas Suitable for Large-Scale Solar PV
For large-scale solar photovoltaic (PV) installations, the most suitable areas near Znojmo would likely be:
- The open, relatively flat agricultural lands to the east and southeast of Znojmo. These areas receive good sun exposure and have fewer geographical obstacles.
- Gently sloping hillsides facing south or southwest, which can be found scattered throughout the region. These locations would benefit from optimal sun angles throughout the day.
- Former industrial or brownfield sites near the town, if available. These areas are often already connected to the power grid and have minimal ecological value.
- Large, open fields or pastures that are not prime agricultural land. These could be repurposed for solar energy production without significantly impacting food production.
It's important to note that any large-scale solar PV project would need to balance energy production goals with environmental conservation, agricultural needs, and local regulations. The picturesque nature of the Znojmo region, including its vineyards and national park, may limit the areas where large solar installations would be permitted or considered appropriate.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 9th of August 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.
