The location at Sliač, Slovakia could be considered moderately ideal for year-round energy generation via solar photovoltaic (PV) systems. The amount of electricity that can be produced by a solar PV system depends on the amount of sunlight it receives, which varies with the seasons.
In summer, you can expect to generate around 6.34 kilowatt-hours (kWh) per day for each kilowatt (kW) of installed solar power. This is the best time of year for solar production at this location because the days are longest and sunniest.
In autumn and spring, you can expect to generate less electricity - about 2.90 kWh/day in autumn and 4.49 kWh/day in spring per kW of installed solar power. These seasons offer fewer hours of daylight compared to summer but still provide reasonable conditions for generating solar energy.
Winter is the least favorable time for generating solar energy at this location as it produces only about 1.35 kWh/day per kW of installed power due to shorter daylight hours and less intense sunlight.
For fixed panel installations at this location, tilting panels at an angle of 41 degrees South would maximize total year-round production from your Solar PV system by ensuring they're oriented towards where the sun will be in the sky most often.
As far as environmental or weather factors that could impede solar production here: Slovakia has a temperate climate with regular rainfall throughout the year which could affect panel efficiency if they get dirty or covered in snow during winter months; however these effects are not usually significant enough to prevent successful use of Solar PV systems overall.
To ensure greater energy production despite these potential issues: You might consider installing a system that allows panels to tilt so they shed snow more easily in winter; also scheduling regular cleaning maintenance especially after heavy rainfalls or dust storms could help keep them operating efficiently all year round.
Finally remember that while these figures give an average, actual solar output can vary depending on specific local weather conditions and the exact positioning of your solar panels.
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 Sliač
Seasonal solar PV output for Latitude: 48.6164496, Longitude: 19.1360232 (Sliač, 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 Sliač, Slovakia
To maximize your solar PV system's energy output in Sliač, Slovakia (Lat/Long 48.6164496, 19.1360232) 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 Sliač, 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 Sliač, 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 | 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 Sliač, 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 Sliač, 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 Sliač, Slovakia
Sliač, Slovakia is located in the central part of the country and is characterized by a hilly terrain with plains, forests, and valleys. The region has an average elevation of around 300-400 meters above sea level.
When considering large-scale solar PV installations, several factors need to be taken into account including sunlight intensity (solar irradiance), land availability and topography.
Given its geographical location, Sliač experiences a good amount of sunlight throughout the year which makes it suitable for solar power generation. However, due to its hilly terrain and forested areas, not all parts may be ideal for large scale solar installations.
Areas that are relatively flat with minimal shading from trees or other structures would be most suited for such projects. Open fields or plains would make ideal locations as they provide ample space for installation without obstruction from shadows.
In terms of specific nearby areas that could potentially host large-scale solar PV systems - this would require more detailed local site analysis taking into account land ownership, environmental impact assessments etc., but generally speaking open spaces on lower lying lands closer to infrastructure (roads/electricity grid) could be more suitable.
It's also worth noting that roof-top solar panels on larger buildings in urbanized areas can also contribute significantly to renewable energy production without requiring additional land resources.
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: Saturday 4th of May 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.




