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Graph of hourly avg kWh electricity output per kW of Solar PV installed in Maribor, Slovenia (by season)

The location of Maribor, Slovenia is somewhat ideal for generating solar energy throughout the year. However, the effectiveness varies with each season. In summer, a considerable amount of energy can be generated with an average of 6.55 kilowatt-hours per day for every kilowatt installed. This decreases in autumn to about 3.02 kWh/day and further drops in winter to approximately 1.84 kWh/day due to shorter daylight hours and less intense sunlight during these seasons.

Spring sees an increase again with about 4.66 kWh/day which makes it a relatively good time for solar energy production after summer but not as much as during the peak summer months.

For optimal year-round solar production at this location, panels should be installed at a tilt angle of 40 degrees facing southwards which will help capture more sunlight throughout the various seasons.

As far as environmental or local factors that could impede solar production in Maribor are concerned, they would need to be evaluated on-site but could potentially include things like shading from nearby buildings or trees, dust or snow accumulation on panels and variable weather conditions including cloud cover and precipitation.

To ensure greater energy production despite these potential challenges:

1) Regular cleaning and maintenance of panels can help prevent dust accumulation.
2) Snow guards can be installed to prevent snow buildup during winter.
3) If possible, installing panels at locations that are not shaded by nearby structures or trees would also enhance their efficiency.
4) Using advanced systems that track the sun's movement across the sky could also boost electricity generation especially during less sunny periods.
5) Weather-resistant equipment can help protect against damage from harsh weather conditions.

Overall while there may be seasonal fluctuations in solar power generation due to changes in sunlight intensity through different times of the year; with proper installation techniques and regular maintenance it is still feasible to harness substantial amounts of solar power even in regions located within the Northern Temperate Zone such as Maribor, Slovenia.

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 60 locations across Slovenia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Slovenia by location

Solar output per kW of installed solar PV by season in Maribor

Seasonal solar PV output for Latitude: 46.5554, Longitude: 15.6465 (Maribor, Slovenia), 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:

Summer
Average 6.55kWh/day in Summer.
Autumn
Average 3.02kWh/day in Autumn.
Winter
Average 1.84kWh/day in Winter.
Spring
Average 4.66kWh/day in Spring.

 

Ideally tilt fixed solar panels 40° South in Maribor, Slovenia

To maximize your solar PV system's energy output in Maribor, Slovenia (Lat/Long 46.5554, 15.6465) throughout the year, you should tilt your panels at an angle of 40° 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.

The sun
At Latitude: 46.5554, Longitude: 15.6465, the ideal angle to tilt panels is 40° South

Seasonally adjusted solar panel tilt angles for Maribor, Slovenia

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 Maribor, Slovenia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 40° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
30° South in Summer 50° South in Autumn 60° South in Winter 39° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Maribor, Slovenia as follows: In Summer, set the angle of your panels to 30° facing South. In Autumn, tilt panels to 50° facing South for maximum generation. During Winter, adjust your solar panels to a 60° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 39° angle facing South to capture the most solar energy in Maribor, Slovenia.

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 Maribor, Slovenia

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 Maribor, Slovenia.

Our calculation method

  1. Solar Position:
    We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
  2. Shadow Projection:
    We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
  3. 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Maribor, Slovenia

Maribor, Slovenia is located in the northeastern part of the country and is surrounded by a diverse topography. The city itself lies in a basin where the Drava River emerges from the hilly Pohorje Massif. This area is characterized by rolling hills, valleys, and plateaus interspersed with forests.

To the west of Maribor are high mountain ranges covered with dense forests which are part of Pohorje Massif. These areas receive significant snowfall during winter months, making them less suitable for solar PV installations.

To the east and south-east of Maribor, however, you can find flatter plains which gradually rise into smaller hills as you move towards Hungary. These regions have more open landscapes that could potentially be better suited for large-scale solar PV installations due to their increased sun exposure.

However, it's important to note that suitability for large-scale solar PV isn't only determined by topography but also factors such as local climate (amount of sunlight), land use restrictions or protections (like agricultural lands or protected nature reserves), accessibility for construction and maintenance works etc.

As per EU's Photovoltaic Geographical Information System (PVGIS), Slovenia has a moderate potential for solar energy production compared to other European countries with southern parts having slightly higher potential than northern parts including Maribor region.

Finally, it would require detailed site-specific assessments including technical feasibility studies to identify exact locations best suited for large-scale solar PV around Maribor.

Slovenia solar PV Stats as a country

Slovenia ranks 60th in the world for cumulative solar PV capacity, with 367 total MW's of solar PV installed. Each year Slovenia is generating 175 Watts from solar PV per capita (Slovenia ranks 28th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Slovenia?

Yes, there are incentives for businesses wanting to install solar energy in Slovenia. The Slovenian 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 government has set up a number of programs to promote the use of renewable energy sources such as solar power.

Do you have more up to date information than this on incentives towards solar PV projects in Slovenia? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Maribor, Slovenia
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 28th 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.

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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.

Calculate Your Optimal Solar Panel Tilt Angle