In Jesenice, Slovenia, a city situated at latitude 46.43 and longitude 14.0619, the potential for solar power generation is quite significant. During summer months, one can anticipate an average of 6.55 kWh per day for each kW of installed solar capacity due to extended daylight hours and high sun intensity. Spring also offers substantial solar production with an average of 4.66 kWh per day per kW.
However, as the seasons transition towards autumn and winter, there is a noticeable decrease in solar output due to shorter days and reduced sunlight intensity; with averages falling to approximately 3.02 kWh in autumn and further declining to about 1.84 kWh in winter.
To optimize the efficiency of your solar installation in Jesenice, it's recommended that panels be fixed at an angle tilted 40 degrees towards the South; this position aligns perfectly with the path of the sun across this region's sky throughout most parts of the year.
Despite its potential for high energy yield from solar installations year-round, certain factors may affect overall performance within this location - primarily weather-related conditions such as rain or snow which could obstruct sunlight reaching your panels thus reducing their output.
Preventative measures can be taken during installation to mitigate these effects: ensuring your panels are installed at a sufficient height above ground level will help prevent snow accumulation during winter months; additionally installing devices such as panel coatings or wipers can help keep your panels clean from dust or other debris that could potentially block sunlight penetration.
In summary: while seasonal variations do exist affecting levels of solar production throughout different times of year within Jesenice - if well-managed through appropriate installation techniques & maintenance practices - this location holds excellent potential for efficient renewable energy generation via photovoltaic systems all-year-round.
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 Jesenice
Seasonal solar PV output for Latitude: 46.43, Longitude: 14.0619 (Jesenice, 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 40° South in Jesenice, Slovenia
To maximize your solar PV system's energy output in Jesenice, Slovenia (Lat/Long 46.43, 14.0619) 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.
Seasonally adjusted solar panel tilt angles for Jesenice, 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 Jesenice, 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 | 49° South in Autumn | 60° South in Winter | 39° 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 Jesenice, 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 Jesenice, 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 Jesenice, Slovenia
The topography around Jesenice, Slovenia is mostly mountainous. The highest peak in the area is Mount Stol, which has an elevation of 2,236 meters (7,336 feet). Areas that are most suited to large-scale solar PV installations would be those with relatively flat land and open spaces with direct access to sunlight. Some possible locations for such installations include the flatlands along the Sava River valley near Jesenice or other areas of lower elevation nearby.
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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 21st of December 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.




