Thuir, Occitanie, France, located at 42.635 latitude and 2.7523 longitude, offers a reasonably good location for solar PV energy generation, though with significant seasonal variations. This Mediterranean town in the Pyrénées-Orientales department experiences strong solar production in summer and spring, with more limited output during autumn and winter months.
Seasonal Solar Production
The solar energy production at Thuir shows marked seasonal differences. Summer stands out as the most productive period with 6.60 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 5.14 kWh/day. Production drops considerably in autumn to 3.40 kWh/day, while winter represents the lowest output period with just 2.19 kWh/day per installed kilowatt.
This pattern means that Thuir receives roughly three times more solar energy in summer than in winter, creating a significant seasonal imbalance. The spring and summer months (approximately April through September) would provide the bulk of annual solar energy production at this location.
Optimal Panel Installation
For fixed solar panel installations in Thuir, Occitanie, the ideal tilt angle to maximize year-round energy production is 37 degrees facing South. This angle has been calculated based on the location's latitude and weighted by the daily PV potential throughout the year, accounting for Earth's elliptical orbit.
Environmental and Weather Considerations
There are several factors that could affect solar production in Thuir:
- The Tramontane wind, a strong, cold, northerly/northwesterly wind common in this region, can carry dust and debris that might accumulate on panels, reducing efficiency.
- Occasional Mediterranean storms can bring heavy rainfall and potential hail damage, particularly in autumn.
- The proximity to the Pyrenees mountains can create localized cloud patterns that might temporarily reduce solar radiation.
To mitigate these challenges, solar installations in Thuir would benefit from regular cleaning schedules to remove dust buildup, especially after Tramontane wind events. Using hail-resistant panels and sturdy mounting systems designed to withstand strong winds would also be advisable. Additionally, microinverters or power optimizers can help minimize production losses when parts of the array experience shading from passing clouds.
Overall, Thuir provides a good location for solar PV installation, especially if system design accounts for the significant seasonal variations and local environmental factors.
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 627 locations across France. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in France by location
Solar output per kW of installed solar PV by season in Thuir
Seasonal solar PV output for Latitude: 42.635, Longitude: 2.7523 (Thuir, France), 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 Thuir, France
To maximize your solar PV system's energy output in Thuir, France (Lat/Long 42.635, 2.7523) 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 Thuir, France
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 Thuir, France. 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 |
|---|---|---|---|
| 26° 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 Thuir, France
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 Thuir, France.
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 Thuir, France
The landscape surrounding Thuir, France, is characterized by a diverse and picturesque topography that reflects the transitional nature of this region between the Pyrénées mountains and the Mediterranean Sea. Located in the Pyrénées-Orientales department in southern France, Thuir sits in the Roussillon plain, approximately 15 kilometers west of Perpignan. The immediate vicinity of Thuir features relatively flat terrain with gentle undulations, making it part of the broader Roussillon plain that extends eastward toward the Mediterranean coast. This plain is primarily composed of fertile alluvial soil deposited over millennia by the Têt and Tech rivers, creating excellent conditions for viticulture and agriculture, which dominate land use in the area.
Surrounding Features
To the south and west of Thuir, the terrain gradually rises as it approaches the foothills of the Pyrénées mountains. These foothills, known as the Aspres, create a more varied landscape with increasing elevation, scattered woodland, and Mediterranean scrubland. The transition from plain to mountain is characterized by a series of stepped terraces and increasingly steep slopes. To the north, the Corbières massif presents a different topographical feature, with more rugged terrain and higher elevations. This area forms a natural boundary between the Roussillon plain and the Aude department. Eastward, the landscape maintains its gentle character as it continues across the Roussillon plain toward Perpignan and eventually the Mediterranean coast, approximately 25 kilometers from Thuir.Potential for Solar PV Development
Several areas near Thuir present favorable conditions for large-scale solar photovoltaic installations, primarily due to their topographical characteristics: The Roussillon plain extending east and northeast of Thuir offers extensive flat terrain that would minimize installation complexity and cost for solar arrays. These areas receive abundant solar radiation due to minimal shadowing from geographical features. The agricultural nature of much of this land presents potential dual-use scenarios, though conversion from productive agricultural land would require careful consideration. The more arid sections of the Aspres foothills to the south and southwest, where agricultural productivity is lower, could be suitable for solar development. These gently sloping areas face predominantly south and southeast, providing excellent solar exposure throughout the day. The gradual elevation changes would not significantly complicate installation while potentially offering improved exposure angles. The transitional zones between the plain and the Corbières to the north present another possibility, particularly on south-facing slopes that receive maximum solar exposure. These areas often feature less productive agricultural land and could be repurposed for energy generation. The Mediterranean climate of the region, with its characteristic clear skies and limited precipitation, creates favorable conditions throughout the area for solar energy capture. The relatively mild winters mean minimal snow accumulation that might otherwise reduce efficiency. Areas to avoid would include the steeper portions of the Pyrénées foothills where installation would be technically challenging and economically prohibitive, as well as the most productive vineyards and orchards that characterize the region's agricultural economy and cultural heritage. The existing infrastructure around Thuir, including road networks and proximity to population centers like Perpignan, provides logistical advantages for development, maintenance, and energy distribution from potential solar installations.France solar PV Stats as a country
France ranks 11th in the world for cumulative solar PV capacity, with 14,718 total MW's of solar PV installed. This means that 2.80% of France's total energy as a country comes from solar PV (that's 30th in the world). Each year France is generating 218 Watts from solar PV per capita (France ranks 23rd in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in France?
Yes, there are several incentives for businesses wanting to install solar energy in France. The French government offers a range of financial incentives and tax credits to encourage businesses to invest in renewable energy sources such as solar power. These include the Feed-in Tariff (FiT), which pays businesses for the electricity they generate from their solar panels, and the Investment Tax Credit (ITC), which provides a 30% tax credit on investments made in renewable energy systems. Additionally, businesses may be eligible for grants or loans from local authorities or regional development agencies.
Do you have more up to date information than this on incentives towards solar PV projects in France? 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 12th of June 2025
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.




