Aitona, Catalonia, Spain presents a moderately good location for year-round solar PV energy generation, though with significant seasonal variation typical of its Northern Temperate Zone position.
Seasonal Solar Performance
The solar energy output at this location varies considerably throughout the year. Summer delivers the strongest performance at 7.55kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows as the second-best period with 6.06kWh per day per kW, offering excellent conditions for solar energy production. Autumn sees a notable decline to 3.94kWh per day per kW, while winter represents the most challenging period with only 2.34kWh per day per kW. This winter figure is quite low and demonstrates the significant seasonal challenge faced by solar installations in this region.Optimal Panel Configuration
For maximum year-round energy production at Aitona, Catalonia, fixed solar panels should be tilted at 35 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's varying position throughout the year and weighting for the actual solar energy potential during different seasons.Local Factors Affecting Solar Production
Several environmental and weather factors in the Aitona area could potentially impact solar energy generation:- Dust and agricultural particles: Aitona is located in an agricultural region known for fruit orchards, which can generate airborne dust and pollen that accumulates on solar panels
- Mediterranean weather patterns: Occasional intense rainfall and storms can affect panel performance temporarily
- Temperature effects: High summer temperatures can reduce panel efficiency despite increased sunlight
Preventative Measures
To maximize energy production despite these challenges, several installation strategies can be employed: Regular cleaning schedules become particularly important in this agricultural setting. Installing panels with adequate spacing allows for proper air circulation, helping to manage temperature buildup during hot summers. Choosing panels with good low-light performance can help maintain reasonable output during the challenging winter months. Proper mounting systems that allow for thermal expansion and can withstand occasional severe weather will ensure long-term reliable operation. Additionally, considering micro-inverters or power optimizers can help minimize the impact when individual panels are temporarily affected by soiling or partial shading.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 361 locations across Spain. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Spain by location
Solar output per kW of installed solar PV by season in Aitona
Seasonal solar PV output for Latitude: 41.484, Longitude: 0.464 (Aitona, Spain), 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 35° South in Aitona, Spain
To maximize your solar PV system's energy output in Aitona, Spain (Lat/Long 41.484, 0.464) throughout the year, you should tilt your panels at an angle of 35° 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 Aitona, Spain
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 Aitona, Spain. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 25° South in Summer | 46° South in Autumn | 56° South in Winter | 34° 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 Aitona, Spain
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 Aitona, Spain.
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 Aitona, Spain
Topographical Features of Aitona and Surroundings
Aitona sits in the fertile plains of Catalonia's Segrià comarca, positioned along the western bank of the Segre River in the province of Lleida. The landscape here is characterized by relatively flat agricultural terrain that forms part of the broader Ebro River basin system. The town itself lies at a modest elevation, surrounded by gently undulating farmland that has been cultivated for centuries.
The topography around Aitona is predominantly flat to gently rolling, with the terrain sloping very gradually toward the southeast as it follows the natural drainage patterns toward the Ebro River. This area represents some of the most productive agricultural land in Catalonia, with extensive orchards, particularly peach and other fruit trees, dominating the landscape. The Segre River creates a natural corridor through the region, with its floodplain contributing to the area's characteristic flat relief.
To the west and northwest of Aitona, the land begins to rise more noticeably as it approaches the foothills of the Catalan Pre-Pyrenees. These elevated areas feature more pronounced slopes and rocky outcrops, creating a transition zone between the flat river plains and the mountainous terrain further inland. The eastern approaches toward the Ebro River maintain the flat agricultural character, with field systems and irrigation infrastructure creating a patchwork landscape across the plains.
Optimal Areas for Large-Scale Solar Development
The extensive flat agricultural plains extending southeast of Aitona toward the Ebro River present the most promising opportunities for large-scale solar photovoltaic installations. These areas offer several key advantages including minimal topographical constraints, excellent accessibility for construction and maintenance vehicles, and relatively straightforward site preparation requirements. The gentle gradients in this direction also provide natural drainage without creating significant engineering challenges.
The broad plateau areas to the southwest of town represent another excellent zone for solar development. This terrain combines the benefits of flat topography with slightly elevated positions that can optimize solar exposure while maintaining practical access to existing road networks. The agricultural nature of much of this land means that large contiguous parcels are potentially available for development, allowing for the economies of scale that make utility-scale solar projects viable.
Areas immediately adjacent to existing electrical transmission infrastructure would be particularly valuable, as the region's agricultural economy has necessitated a well-developed power grid. The flat terrain between Aitona and neighboring municipalities like Seròs and Alcarràs offers extensive possibilities for solar farms, with the added benefit of being situated in zones already designated for intensive land use rather than natural conservation areas.
The slightly elevated plateaus to the north and northeast of Aitona also merit consideration, though these areas may require more careful site selection to avoid steeper slopes and ensure adequate access. These locations could offer advantages in terms of air circulation and potentially reduced dust accumulation compared to lower-lying areas, while still maintaining the relatively flat topography essential for cost-effective solar installation and maintenance.
Spain solar PV Stats as a country
Spain ranks 10th in the world for cumulative solar PV capacity, with 15,952 total MW's of solar PV installed. This means that 9.00% of Spain's total energy as a country comes from solar PV (that's 6th in the world). Each year Spain is generating 237 Watts from solar PV per capita (Spain ranks 20th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Spain?
Yes, there are several incentives for businesses wanting to install solar energy in Spain. These include the following:
1. The Spanish government offers a feed-in tariff (FIT) for businesses that install solar energy systems. This FIT guarantees a fixed price per kWh of electricity generated by the system over a period of 20 years.
2. Businesses can also benefit from tax deductions and other financial incentives when installing solar energy systems in Spain.
3. Companies may be eligible for grants or subsidies from regional governments or local authorities to help cover the cost of installation and maintenance of their solar energy systems.
4. Businesses may also be able to take advantage of net metering, which allows them to sell excess electricity generated by their solar energy system back into the grid at market prices, thus reducing their overall electricity costs even further.
Do you have more up to date information than this on incentives towards solar PV projects in Spain? 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: Saturday 2nd of August 2025
Last Updated: Friday 8th of August 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
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