Solar PV Analysis of Modra, Slovakia
Modra, Bratislava, Slovakia, located at latitude 48.3346 and longitude 17.3013, is a suitable location for the installation of solar photovoltaic (PV) systems due to its yearly sunlight exposure. The average energy production from a kilowatt of installed solar capacity varies with the seasons: it reaches its peak in summer with an average of 6.42 kWh per day per kW, declines to 2.87 kWh in autumn and drops further to 1.29 kWh during winter months, before increasing again in spring to an average of 4.55 kWh.
The ideal tilt angle for fixed panel installations at this location is directed towards the south at an angle of approximately 41 degrees from horizontal. This orientation maximizes the panels' exposure to sunlight throughout the year.
However, local weather conditions such as heavy rain or snowfall could potentially affect solar power generation by decreasing available sunlight for energy conversion processes in these PV systems installed in Modra city.
To mitigate such challenges and ensure optimal energy production all year round despite these weather variations, it's advisable to implement preventative measures during installation process like ensuring proper panel inclination that allows snow slippage and considering weather-resistant materials for panels that can withstand heavy rainfall without affecting their efficiency significantly.
It's also worth noting that regular maintenance can help keep your system running efficiently by promptly identifying and addressing issues like dirt or debris accumulation on panels which could impede sunlight absorption hence reducing overall system performance.
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 64 locations across Slovakia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Slovakia by location
Solar output per kW of installed solar PV by season in Modra
Seasonal solar PV output for Latitude: 48.3346, Longitude: 17.3013 (Modra, Slovakia), 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 Modra, Slovakia
To maximize your solar PV system's energy output in Modra, Slovakia (Lat/Long 48.3346, 17.3013) 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 Modra, Slovakia
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 Modra, Slovakia. 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 | 51° 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 Modra, Slovakia
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 Modra, Slovakia.
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 Modra, Slovakia
The topography around Modra, Slovakia is mostly flat with some rolling hills. The nearby areas that would be most suited to large-scale solar PV are the flat and open fields in the surrounding area as well as any rooftops or other structures with a large surface area.
Slovakia solar PV Stats as a country
Slovakia ranks 46th in the world for cumulative solar PV capacity, with 535 total MW's of solar PV installed. This means that 2.40% of Slovakia's total energy as a country comes from solar PV (that's 33rd in the world). Each year Slovakia is generating 98 Watts from solar PV per capita (Slovakia ranks 39th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Slovakia?
Yes, there are incentives for businesses wanting to install solar energy in Slovakia. The Slovak government offers a range of financial incentives and subsidies for businesses that install solar energy systems. These include grants, tax credits, and other forms of support. Additionally, the Slovak government has set up a Renewable Energy Support Scheme (RES) which provides additional funding for renewable energy projects such as solar installations.
Do you have more up to date information than this on incentives towards solar PV projects in Slovakia? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 23rd of October 2023
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.
