Rojales, Valencia, Spain offers excellent conditions for year-round solar energy generation, making it a highly suitable location for solar PV installations. Located in the Northern Temperate Zone at coordinates 38.0873, -0.7246, this area benefits from Spain's Mediterranean climate and abundant sunshine throughout the year.

Seasonal Solar Performance

The solar energy output at Rojales varies significantly across the seasons, reflecting the natural patterns of solar availability. Summer delivers the highest production at 7.53 kWh per day per kW of installed solar capacity, making it the peak generation period. Spring follows as the second-best season with 5.68 kWh per day per kW, offering excellent production levels as daylight hours increase. Autumn provides moderate output at 4.05 kWh per day per kW, while winter naturally produces the lowest levels at 2.84 kWh per day per kW. Despite winter being the weakest season, the output remains reasonable compared to many northern European locations, demonstrating Rojales' year-round solar potential.

Optimal Panel Configuration

For maximum year-round energy production at this location, solar panels should be installed at a fixed tilt angle of 33 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying position throughout the year, Earth's elliptical orbit, and local solar irradiance patterns.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Rojales area could potentially impact solar panel performance, though most can be effectively managed with proper installation practices. Dust accumulation represents the most significant concern in this Mediterranean climate. The region experiences dry periods and occasional dust from North African weather systems, which can coat solar panels and reduce their efficiency. Regular cleaning schedules, typically every 2-3 months, help maintain optimal performance. Installing panels at the recommended 33-degree tilt also assists with natural rain washing, as the angled surface allows water to flow across the panels more effectively. Salt air from the nearby Mediterranean coast can cause corrosion over time, particularly affecting metal components and electrical connections. Using marine-grade mounting hardware, corrosion-resistant aluminum frames, and ensuring proper sealing of electrical connections helps prevent degradation. Regular inspections of mounting systems and electrical components are advisable in coastal areas.

Preventative Installation Measures

To maximize energy production and system longevity in Rojales, Valencia, several installation strategies prove beneficial:

• Choose panels and mounting systems specifically rated for coastal environments with anti-corrosion coatings
• Ensure adequate spacing between panels and roof surfaces for air circulation to prevent overheating
• Install accessible cleaning points and consider automated cleaning systems for larger installations
• Use high-quality inverters with good heat tolerance, as summer temperatures can be substantial
• Implement proper grounding and surge protection due to occasional thunderstorms

The occasional Mediterranean storms, while infrequent, can bring heavy rain and strong winds. Proper structural mounting that meets local wind load requirements ensures system durability. These same storms, however, provide beneficial natural cleaning of dust-covered panels. Overall, Rojales presents an ideal location for solar energy generation with manageable environmental challenges that can be effectively addressed through proper system design and maintenance practices.

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 Rojales

Seasonal solar PV output for Latitude: 38.0873, Longitude: -0.7246 (Rojales, 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 33° South in Rojales, Spain

To maximize your solar PV system's energy output in Rojales, Spain (Lat/Long 38.0873, -0.7246) throughout the year, you should tilt your panels at an angle of 33° 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 Rojales, 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 Rojales, Spain. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
22° South in Summer	42° South in Autumn	53° South in Winter	30° 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 Rojales, 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 Rojales, Spain.

Our calculation method

1. Solar Position:
   We determine the Sun's position on the Winter solstice using the location's latitude and solar declination.
2. Shadow Projection:
   We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle.
3. 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 Rojales, Spain

Topography Around Rojales

Rojales sits in the southeastern region of Spain's Alicante province, positioned within the Vega Baja del Segura comarca. The town occupies a relatively flat position along the Segura River valley, with the landscape characterized by gentle undulations rather than dramatic elevation changes. The immediate surroundings feature fertile agricultural plains that have been cultivated for centuries, creating a patchwork of citrus groves, vegetable plots, and open fields.

The terrain gradually rises towards the northwest, where the foothills of the Cordillera Bética mountain system begin to assert their presence. These elevated areas remain modest in height, creating rolling hills that provide natural windbreaks and varied microclimates throughout the region. To the southeast, the land continues its gentle descent toward the Mediterranean coast, maintaining the agricultural character that defines much of this part of the Costa Blanca.

The Segura River meanders through the area, creating natural boundaries and influencing the local topography with its floodplain deposits. This river system has shaped the landscape over millennia, leaving behind fertile alluvial soils that support the region's agricultural economy. Small irrigation channels and drainage ditches crisscross the terrain, evidence of the sophisticated water management systems that have been developed to support farming in this semi-arid climate.

Optimal Areas for Large-Scale Solar Development

The most promising locations for substantial solar photovoltaic installations lie in the elevated areas northwest of Rojales, where the land begins its gradual ascent toward the inland hills. These zones offer several advantages including reduced competition with prime agricultural land, excellent southern exposure, and terrain that naturally drains well during the occasional heavy rainfall events that characterize the Mediterranean climate.

The gently sloping hillsides in this direction provide ideal conditions for solar panel orientation while remaining accessible for construction and maintenance activities. The elevation changes are gradual enough to allow for efficient site preparation without excessive grading costs, yet sufficient to ensure proper drainage and minimize the risk of flooding that can occasionally affect lower-lying areas near the Segura River.

Areas to the west and southwest of the town center also present excellent opportunities, particularly on the slightly elevated plateaus that extend toward the neighboring municipalities. These locations benefit from unobstructed sky access and are generally removed from the most intensive agricultural zones, reducing potential land-use conflicts. The terrain in these areas typically consists of scrubland or less productive agricultural areas, making them more readily available for alternative development.

The flat agricultural plains immediately surrounding Rojales, while technically suitable from a topographical standpoint, would likely face significant opposition due to their continued importance for food production. However, marginal agricultural lands that have been abandoned or are less economically viable could potentially be considered for solar development, particularly those areas that suffer from salinity issues or poor drainage.

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!

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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.