Solar PV Analysis of Materija, Slovenia
The city of Materija, Slovenia, located at latitude 45.5847 and longitude 13.9939, is a promising site for solar photovoltaic (PV) installations due to its substantial average daily energy production per kilowatt (kW) of installed solar capacity across all seasons. The output peaks in the summer with an average of 7.08 kilowatt-hours (kWh) per day per kW installed, owing to the increased sunlight exposure as a result of the Northern Temperate Zone's tilt towards the sun during these months.
Spring follows closely behind with an average daily production rate of 5.46 kWh/kW installed, while autumn sees a significant drop to an average yield of 3.29 kWh/kW installed per day due to less daylight hours and shorter days compared to summer and spring.
Winter experiences the least productivity with only an average output of 1.72 kWh/day/kW installed because it has fewer daylight hours and lower sun intensity as this season coincides with the Northern Hemisphere's tilt away from the sun.
For fixed panel installations in Materija, tilting panels at a recommended angle of approximately 39 degrees facing south optimizes energy production by aligning them more directly towards incoming sunlight throughout most parts of the year.
However, it should be noted that local weather conditions such as heavy cloud cover or rainfall can negatively impact solar PV performance by reducing available sunlight for conversion into electricity. To mitigate this effect on energy generation capacity during these periods, regular maintenance practices such as keeping panels clean can help maintain optimal performance levels even under less than ideal weather conditions.
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 Materija
Seasonal solar PV output for Latitude: 45.5847, Longitude: 13.9939 (Materija, 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:
Ideally tilt fixed solar panels 39° South in Materija, Slovenia
To maximize your solar PV system's energy output in Materija, Slovenia (Lat/Long 45.5847, 13.9939) throughout the year, you should tilt your panels at an angle of 39° 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 Materija, 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 Materija, Slovenia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 39° 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 | 60° 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 Materija, 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 Materija, Slovenia.
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 Materija, Slovenia
The topography around Materija, Slovenia is quite hilly and mountainous. The area surrounding the town is mostly covered by forests, with some agricultural land in the valleys.
The most suitable areas for large-scale solar PV installations would be on flat or gently sloping terrain that receives direct sunlight throughout the day. Areas near Materija that meet these criteria include the valley floors of Komen and Logatec, as well as some of the more open hillsides in Dutovlje and Idrija.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 2nd of November 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.
