Andorra la Vella, Andorra (latitude: 42.5015, longitude: 1.5144) is a fairly suitable location for solar PV generation due to its relatively high sunlight levels throughout the year. The average energy production per kW of installed solar in each season is as follows: 6.76 kWh/day in summer, 3.58 kWh/day in autumn, 2.42 kWh/day in winter, and 5.38 kWh/day in spring. Solar power generation is more efficient during the summer months because of longer daylight hours and increased sunlight intensity.
However, certain environmental factors can impact solar production at this location. Extreme winds or heavy snowfall may obstruct sunlight from reaching the panels and reduce their efficiency in generating electricity. Cloud cover can also decrease the amount of direct sunlight that reaches the panels, leading to lower output capacity.
To optimize energy production at this location, it is recommended to tilt solar panels at an angle of 37 degrees facing southward for maximum exposure to sunlight throughout the year.
When installing solar systems in Andorra la Vella, it's essential to consider preventative measures against potential environmental challenges such as strong winds or heavy snowfall by ensuring proper mounting and support structures are used for panel installation. Additionally, regular maintenance should be performed on the system to remove any accumulated snow or debris that could impede energy production efficiency over time.
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 3 locations across Andorra. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Andorra by location
Solar output per kW of installed solar PV by season in Andorra La Vella
Seasonal solar PV output for Latitude: 42.5015, Longitude: 1.5144 (Andorra La Vella, Andorra), 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 37° South in Andorra La Vella, Andorra
To maximize your solar PV system's energy output in Andorra La Vella, Andorra (Lat/Long 42.5015, 1.5144) throughout the year, you should tilt your panels at an angle of 37° 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 Andorra La Vella, Andorra
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 Andorra La Vella, Andorra. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 37° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 27° South in Summer | 47° South in Autumn | 57° South in Winter | 35° 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 Andorra La Vella, Andorra
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 Andorra La Vella, Andorra.
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 Andorra La Vella, Andorra
The topography around Andorra la Vella, Andorra is mountainous. The nearby areas that would be most suited to large scale solar PV installations are the flat valley floors and the south-facing slopes of the mountains. These areas provide sufficient space for large scale installations, while also providing ideal conditions for capturing maximum sunlight.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 10th of August 2022
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.




