La Goulette, Tunis Governorate, Tunisia is a decent place for generating solar energy throughout the year. The energy produced by each kilowatt of installed solar changes with the seasons: it's highest in summer, producing 7.32 kilowatt hours per day; reduces to 4.08 kWh/day in autumn and further drops to 3.08 kWh/day in winter; but then increases again to 5.99 kWh/day in spring.
So, if you're planning on generating solar power at this location, summer would be the best time due to longer daylight hours and more direct sunlight exposure which results in higher energy production. However, even during other seasons like spring and autumn you can still expect a reasonable amount of electricity generation.
To get the most out of your solar panels all year round at this location, they should ideally be tilted towards south at an angle of about 32 degrees from horizontal level. This position will allow them to catch as much sunlight as possible over different times of day and various seasons.
As for local factors that could affect your ability to generate solar power here - La Goulette is located near the coast which means there might occasionally be issues with sea fog or cloud cover blocking sunlight especially during morning hours when fog is common along coasts. Regular cleaning and maintenance can help keep panels free from dust or salt deposits from coastal winds that might reduce their efficiency over time.
Also remember that Tunisia experiences hot summers so it's important to ensure adequate cooling for your system because high temperatures can actually decrease panel efficiency slightly - shade structures or ensuring good airflow around panels could help here.
In conclusion, while La Goulette isn't perfect for year-round maximum solar production due mainly its seasonal variations and some potential environmental factors related to its coastal location, it's still a pretty good spot overall if you set up your installation correctly.
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 53 locations across Tunisia. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Tunisia by location
Solar output per kW of installed solar PV by season in La Goulette
Seasonal solar PV output for Latitude: 36.8166, Longitude: 10.3084 (La Goulette, Tunisia), 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 32° South in La Goulette, Tunisia
To maximize your solar PV system's energy output in La Goulette, Tunisia (Lat/Long 36.8166, 10.3084) throughout the year, you should tilt your panels at an angle of 32° 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 La Goulette, Tunisia
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 La Goulette, Tunisia. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 32° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 21° South in Summer | 41° South in Autumn | 52° South in Winter | 29° 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 La Goulette, Tunisia
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 La Goulette, Tunisia.
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 La Goulette, Tunisia
La Goulette, Tunisia is located on the Mediterranean coast and is characterized by flat terrain. It's part of the Greater Tunis area and is primarily urbanized with a significant amount of infrastructure related to its role as a major port.
The most suitable areas for large-scale solar PV around La Goulette would likely be in less densely populated regions with more open space. Flat desert areas are particularly well-suited to this type of project due to their high levels of sunlight and minimal obstructions. As such, locations further south or inland from La Goulette may offer better opportunities for large-scale solar PV installations.
However, it's important to note that feasibility studies would need to be conducted before determining the best sites for such projects. These studies would take into account factors like land use restrictions, proximity to power grids, local climate conditions (including average hours of sunlight), potential environmental impacts, and other relevant considerations.
Citation Guide
Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 27th of April 2024
Last Updated: Monday 21st of July 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




