Solar PV Analysis of Osijek, Croatia
Osijek, Croatia, located in the Northern Temperate Zone, has some potential for generating energy through solar power all year round. However, the efficiency of this process varies depending on the season. During summer months when sunlight is most abundant, you can expect to generate about 7.01 kilowatt-hours (kWh) per day for each kilowatt (kW) of installed solar panels. This amount decreases in autumn to about 3.14 kWh/day and further drops during winter to around 1.74 kWh/day due to shorter days and less intense sunlight. The output increases again in spring with an average of 4.94 kWh/day.
Therefore, summer and spring are the ideal times for generating solar energy at this location due to longer daylight hours and more direct sunlight exposure.
To maximize total year-round production from your solar panels at this location, it's recommended that you tilt them towards south at an angle of 38 degrees.
As far as local factors that could affect your solar production go - Osijek is generally flat and low-lying which is beneficial as there aren't hills or mountains blocking out sunlight from reaching your panels directly; however its location by a river might mean occasional foggy conditions which could reduce sunlight exposure temporarily.
The region's flatness also makes it suitable for large-scale installations if you have access to agricultural land or other areas not heavily forested or intensively used for agriculture - these could be ideal sites for larger projects.
In terms of preventative measures against any potential impediments: regular cleaning and maintenance will ensure that dirt or debris doesn't block light from reaching your panels; while monitoring weather forecasts can help you prepare for periods with less optimal conditions like extended cloud cover or foggy days which might require using alternative sources of power if necessary.
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 29 locations across Croatia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Croatia by location
Solar output per kW of installed solar PV by season in Osijek
Seasonal solar PV output for Latitude: 45.5473, Longitude: 18.6951 (Osijek, Croatia), 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 38° South in Osijek, Croatia
To maximize your solar PV system's energy output in Osijek, Croatia (Lat/Long 45.5473, 18.6951) throughout the year, you should tilt your panels at an angle of 38° 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 Osijek, Croatia
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 Osijek, Croatia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 38° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 29° South in Summer | 49° South in Autumn | 59° South in Winter | 38° 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 Osijek, Croatia
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 Osijek, Croatia.
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 Osijek, Croatia
Osijek is located in the eastern part of Croatia, in a region known as Slavonia. The topography of this area is generally flat and low-lying. Osijek itself is situated on the right bank of the Drava River, approximately 25 km upstream from its confluence with the Danube.
The region's flatness and abundance of sunlight make it potentially suitable for large-scale solar photovoltaic (PV) installations. However, several factors need to be considered:
1. Land Availability: Large-scale solar PV requires significant amounts of land. Agricultural land around Osijek could be potential sites for such installations but this would require careful planning to avoid conflict with farming activities.
2. Grid Connectivity: Large-scale PV plants need to be connected to the power grid for electricity transmission and distribution.
3. Regulatory Environment: The regulatory environment for renewable energy in Croatia would also play a major role in determining feasibility.
4. Environmental Impact: Any potential environmental impact should also be assessed before installation.
Areas around Osijek that are not heavily forested or used intensively for agriculture could potentially serve as locations for large-scale solar PV projects, provided they meet these criteria and receive necessary permissions from local authorities.
Croatia solar PV Stats as a country
Croatia ranks 84th in the world for cumulative solar PV capacity, with 109 total MW's of solar PV installed. Each year Croatia is generating 27 Watts from solar PV per capita (Croatia ranks 60th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Croatia?
Yes, there are incentives for businesses wanting to install solar energy in Croatia. The Croatian government offers a number of financial incentives and subsidies for businesses that install solar energy systems. These include grants, tax credits, and other forms of support. Additionally, the government has set up a feed-in tariff system which guarantees a certain price per kilowatt hour (kWh) generated from renewable sources such as solar energy. This helps to make investing in solar energy more attractive for businesses.
Do you have more up to date information than this on incentives towards solar PV projects in Croatia? 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 18th 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.
