The location at Stary Plzenec, Plzeň Region, Czechia, is fairly good for generating solar energy throughout the year, but it's not perfect. The amount of electricity you can produce from a solar panel depends on how much sunlight hits it. In summer and spring, there's more sunlight so you can expect to generate more electricity - around 5.63 kilowatt-hours (kWh) per day in summer and 4.35 kWh/day in spring for each kilowatt of installed solar power.
However, during autumn and winter when the days are shorter and there's less sunlight, your panels will produce less electricity - about 2.56 kWh/day in autumn and only 1.25 kWh/day in winter per kilowatt of installed solar power.
To get the most out of your panels all year round at this location, they should be tilted at an angle facing south by 42 degrees from horizontal level. This position will allow them to catch as much sun as possible across different seasons.
As for local factors that might affect how well your panels work: weather conditions like heavy snowfall or extreme hail could damage the panels or block sunlight from reaching them; thick fog or cloud cover could also reduce their effectiveness by blocking some light; pollution or dust could settle on the surface of the panels making them less effective too.
To prevent these issues: consider installing a system to automatically clear snow off your panels; keep an eye on weather forecasts so you can take protective measures if extreme weather is predicted; clean your panels regularly to remove any dust or dirt build-up; if pollution is a significant problem in your area then consider installing filters or other protective equipment to help keep your panels clean.
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 Stary Plzenec
Seasonal solar PV output for Latitude: 49.6984, Longitude: 13.4806 (Stary Plzenec, 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 Stary Plzenec, Czechia
To maximize your solar PV system's energy output in Stary Plzenec, Czechia (Lat/Long 49.6984, 13.4806) 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 Stary Plzenec, 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 Stary Plzenec, 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 Stary Plzenec, 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 Stary Plzenec, 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 Stary Plzenec, Czechia
Stary Plzenec is located in the western part of Czechia, in the Pilsen Region. The topography around Stary Plzenec is a mix of flat plains and gently rolling hills. There are also forests and farmland scattered throughout the area.
In terms of solar PV potential, areas with flat or mildly sloping terrain would be ideal as they allow for easy installation and maximum sunlight exposure. Therefore, open farmlands or plains near Stary Plzenec could be suitable for large-scale solar PV installations.
However, there are other factors to consider when determining suitability for solar power projects such as local weather patterns (amount of sun), land use regulations, proximity to power grids for transmission and environmental impact assessments.
From a geographical perspective alone though, it seems that there may be potential locations around Stary Plzenec suited to large-scale solar PV due to its relatively flat landscape interspersed with gentle slopes.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 21st of March 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.
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.




