Bor, Plzeň Region, Czechia, located at latitude 49.7128 and longitude 12.7842 in the Northern Temperate Zone, offers varied solar energy potential throughout the year. Solar photovoltaic (PV) systems at this location can generate electricity, though with significant seasonal fluctuations.
Seasonal Solar Production
Solar panels in Bor demonstrate strong seasonal variations in energy production. During summer, panels can generate an impressive 5.58 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 4.29 kWh/day per installed kilowatt. Autumn sees a substantial drop to 2.50 kWh/day, while winter production falls dramatically to just 1.20 kWh/day per kilowatt installed.
This pattern means Bor residents can expect approximately 4.6 times more solar energy production in summer compared to winter months. The location is most ideal for solar generation from late spring through early autumn when days are longer and solar radiation is more intense.
Optimal Panel Installation
For fixed solar panel installations in Bor, Plzeň Region, the ideal tilt angle is 42 degrees facing South. This specific angle maximizes year-round energy production by optimizing the capture of available sunlight across all seasons. Proper installation at this angle can help compensate somewhat for the lower winter production figures.
Environmental and Weather Considerations
Several factors could potentially impact solar production in Bor:
- Snow accumulation in winter months can cover panels and significantly reduce already low winter production
- Fog and cloud cover, common in the region during autumn and winter, contribute to the lower seasonal output
- Dust and pollen accumulation, particularly during spring and summer
To mitigate these challenges, solar installations in Bor would benefit from several preventative measures. Installing panels at the recommended 42-degree angle helps facilitate natural snow shedding. Regular cleaning schedules, particularly after pollen season or extended dry periods, can maintain optimal performance. Additionally, using microinverters or power optimizers can help minimize production losses when portions of arrays are shaded or covered.
Overall, Bor offers good potential for solar energy generation, especially during the warmer half of the year, though winter production will be substantially lower and require supplemental energy sources during the coldest 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 Bor
Seasonal solar PV output for Latitude: 49.7128, Longitude: 12.7842 (Bor, 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 42° South in Bor, Czechia
To maximize your solar PV system's energy output in Bor, Czechia (Lat/Long 49.7128, 12.7842) 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 Bor, 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 Bor, Czechia. 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 Bor, 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 Bor, 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 Bor, Czechia
The topography around Bor, a small town in the western part of Czechia near the German border, is characterized by gently rolling hills and shallow valleys typical of the Bohemian Forest foothills. This region sits at an elevation of approximately 500 meters above sea level, with the landscape gradually rising toward the southwest where it meets the Český les (Bohemian Forest) mountain range. The terrain features a pleasing mixture of open agricultural fields, meadows, and scattered forests of pine and spruce. The area around Bor is part of the Plzeň Region and exhibits a transitional landscape between the Bohemian Basin and the more mountainous border regions. Small streams and minor waterways cut through the countryside, creating subtle variations in the otherwise moderate topography. The land generally slopes gently from southwest to northeast, with occasional more pronounced hills breaking up the horizon.
Solar PV Potential Areas
For large-scale solar photovoltaic installations, the most suitable areas near Bor would be the open, south-facing slopes and plateaus that receive minimal shadowing from the surrounding terrain. Particularly promising are the cleared agricultural lands to the north and east of Bor, where the topography flattens somewhat and offers expansive areas with favorable exposure. The gently sloping fields between Bor and Stříbro (to the east) present good opportunities for solar development due to their relatively open aspect and minimal forest cover. These areas benefit from the natural slight incline that helps avoid shadowing effects while not being so steep as to complicate construction. Areas to avoid would include the more densely forested sections to the southwest toward the Bohemian Forest, where tree coverage and increasing elevation create more shadowing and less optimal conditions for solar collection. Similarly, the narrow valley bottoms where small streams flow would be less suitable due to potential morning and evening shadowing from adjacent hills. The relatively flat agricultural plateau extending northeast from Bor toward Tachov also offers considerable potential for large-scale installations, with its open character and minimal topographical obstacles. These areas combine accessible terrain for construction with favorable orientation for solar collection. Local microclimatic conditions should be considered, as the rolling nature of the landscape can create pockets with slightly different exposure characteristics. The most optimal sites would combine good southern exposure, minimal shadowing from nearby terrain features, proximity to existing electrical infrastructure, and suitable land that isn't designated for high-value agricultural or conservation purposes.Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 21st of May 2025
Last Updated: Saturday 29th of November 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.




