Solar Energy Potential in Rocafort, Valencia, Spain
Rocafort, Valencia, Spain, located at coordinates 39.5357, -0.4148 in the Northern Temperate Zone, offers generally favorable conditions for solar energy production throughout the year. This Mediterranean location receives substantial sunlight, though with notable seasonal variations that affect energy generation potential. The solar production pattern shows a clear seasonal cycle. Summer stands out as the most productive period with an impressive 7.37kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.54kWh/day, while autumn generates a moderate 3.94kWh/day. Winter, as expected, produces the least energy at 2.72kWh/day per kW installed.Optimal Installation Parameters
For fixed solar panel installations in Rocafort, Valencia, the ideal tilt angle is 34 degrees facing South. This specific angle has been calculated to maximize year-round energy production based on Rocafort's latitude and the sun's seasonal position variations. This angle represents the best compromise between capturing low winter sun and avoiding excessive tilt during summer months when the sun travels higher in the sky.Seasonal Considerations
The most productive months for solar generation in Rocafort are May through August, when longer daylight hours combine with clearer skies and higher sun angles. During this period, solar systems will operate at or near their maximum rated capacity for several hours each day. The shoulder seasons (April, September, and October) still offer good production potential, though with gradually decreasing returns as daylight hours shorten. November through February represent the challenging period, with shorter days and lower sun angles significantly reducing energy output.Environmental and Weather Factors
While Rocafort enjoys a favorable climate for solar production, several factors can potentially impact system performance:- Dust and pollen accumulation on panels, particularly during spring and during dry summer periods, can reduce efficiency by 5-15% if left uncleaned
- Occasional Mediterranean storms with hail, though rare, could potentially damage panels if they're not rated for impact resistance
- High summer temperatures (occasionally exceeding 35°C) can reduce panel efficiency, as most solar panels lose approximately 0.4% efficiency for each degree above their rated temperature
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 Rocafort
Seasonal solar PV output for Latitude: 39.5357, Longitude: -0.4148 (Rocafort, 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 34° South in Rocafort, Spain
To maximize your solar PV system's energy output in Rocafort, Spain (Lat/Long 39.5357, -0.4148) throughout the year, you should tilt your panels at an angle of 34° 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 Rocafort, 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 Rocafort, Spain. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 34° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 23° South in Summer | 44° South in Autumn | 55° South in Winter | 32° 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 Rocafort, 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 Rocafort, 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 Rocafort, Spain
Rocafort is a small municipality located in the province of Valencia, in eastern Spain. The topography around Rocafort is quite varied and interesting, characterized by several distinct landscape features that make this region unique. The town itself sits at an elevation of approximately 90 meters above sea level on the eastern edge of a plateau that gently rises from the Mediterranean coastal plain. Moving westward from Rocafort, the terrain gradually increases in elevation, forming part of the foothills of the broader Iberian System mountain range. These western areas feature rolling hills with moderate slopes that eventually rise to form more pronounced elevations.
Coastal Plain and Eastern Lowlands
To the east of Rocafort lies the Huerta de Valencia (Valencia's Market Garden), a fertile alluvial plain that stretches toward the Mediterranean Sea. This flat plain, with elevations typically below 50 meters, has been extensively cultivated for centuries due to its rich soils and favorable growing conditions. The plain is crisscrossed by irrigation channels and the Turia River, which flows southeast toward Valencia city and the Mediterranean coast approximately 10 kilometers east of Rocafort.Northern and Western Highlands
Moving northwest from Rocafort, the terrain becomes increasingly undulating, with hills rising to elevations between 200-400 meters. This area marks the transition to the Sierra Calderona mountain range, a more rugged landscape with steeper slopes and deeper valleys. The terrain in this direction features more pronounced relief, with limestone outcroppings and some areas of exposed bedrock.Southern Plateau
To the south and southwest, the landscape forms a moderately elevated plateau with gentler slopes than the northern highlands. This area has average elevations of 100-200 meters and features a mix of agricultural land and areas of natural vegetation, including Mediterranean scrubland and scattered pine forests.Solar PV Potential
When considering areas near Rocafort that would be most suitable for large-scale solar photovoltaic (PV) development, several factors come into play, including terrain flatness, solar radiation, and land availability. The southern plateau region southwest of Rocafort presents perhaps the most promising area for large-scale solar PV installations. This area combines several favorable characteristics: relatively flat terrain that minimizes construction challenges and shading issues, good solar exposure with minimal obstruction from mountains, and land that is less intensively cultivated than the eastern plains. The eastern plains, while very flat and technically suitable from a topographical perspective, are less ideal due to their status as prime agricultural land. The Huerta de Valencia is historically and economically important for its agricultural productivity, making large-scale solar development potentially controversial from a land-use perspective. Areas to the northwest in the direction of the Sierra Calderona are less suitable due to more varied topography, steeper slopes, and increased shading from hills and mountains. The rugged terrain would also increase construction costs and complexity. Some of the gently sloping areas directly west of Rocafort, where the plateau begins to rise but before reaching the more pronounced hills, could offer a good compromise between favorable topography and land availability. These transitional zones typically receive excellent solar radiation and have moderate slopes that can actually be advantageous for solar installations when oriented properly toward the south. The region around Rocafort generally enjoys a Mediterranean climate, making it inherently favorable for solar energy production regardless of the specific site chosen.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 19th of April 2025
Last Updated: Friday 29th 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
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.




