Solar PV Analysis of Brno, Czechia
The location at Brno, South Moravian, Czechia is not ideal for year-round solar energy production due to its position in the Northern Temperate Zone. However, it still has potential for solar power generation, particularly during certain times of the year.
In summer and spring, you can expect a decent amount of energy production. With 5.97kWh/day in summer and 4.23kWh/day in spring per kW of installed solar, these seasons would be the most productive for generating solar energy at this location.
On the other hand, autumn and winter see a significant drop in potential solar power output with only 2.67kWh/day and 1.13kWh/day respectively per kW of installed solar panels.
For a fixed panel installation at this location to maximize total year-round production from solar PV (photovoltaic), it is best to tilt your panels at an angle of 41 degrees facing South.
There may be local factors that could impede or reduce the effectiveness of your solar power system such as environmental conditions like heavy snowfall or fog which are common during winter months in Czechia; topography including mountains or tall buildings that might block sunlight; weather patterns like cloudy days which limit sunlight exposure; among others.
To ensure greater energy production despite these challenges:
1) Regular maintenance: Regular cleaning and maintenance can help ensure your panels are working efficiently especially after heavy snowfall.
2) Optimal installation: Install your panels where they have clear access to sunlight most hours of the day.
3) Use advanced technology: Consider using more advanced technology like tracking systems that move with the sun's path across the sky or use anti-reflective coating on your panels to capture more light.
4) Backup system: Have a backup system ready for less sunny days or during winter months when there's less daylight hours.
Remember though that while these measures can help improve efficiency, they might also increase initial investment costs so it's important to weigh the pros and cons before deciding.
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 Brno
Seasonal solar PV output for Latitude: 49.15, Longitude: 16.611 (Brno, 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 Brno, Czechia
To maximize your solar PV system's energy output in Brno, Czechia (Lat/Long 49.15, 16.611) 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 Brno, 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 Brno, 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 Brno, 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 Brno, 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 Brno, Czechia
Brno, the second-largest city in Czechia, is located in the southeastern part of the country. It lies in a basin surrounded by hilly terrain on three sides. The area is characterized by a mix of flatlands and rolling hills, with altitudes ranging from 190 to 425 meters above sea level. The highest point near Brno is Kraví hora (Cow Mountain) at 389 meters.
The region has a moderate climate with average annual solar radiation values suitable for solar PV installations. However, the actual suitability for large-scale solar PV installations would depend on various factors like land availability, land use restrictions, proximity to power grids and infrastructure etc.
Flat areas with good sun exposure would be most suited for large-scale solar PV installations. Agricultural lands could also be considered if they are not fertile or if dual-use (agrivoltaics) can be implemented without affecting crop yield significantly. South-facing slopes of hills could also be suitable as they receive more sunlight.
However, it's important to note that any potential site needs to undergo detailed feasibility studies including environmental impact assessment before it can be deemed suitable for such projects.
Specific sites cannot be pinpointed without more detailed geographic and infrastructural data of the region around Brno.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 17th of January 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.
