San Vicente de la Barquera, Spain presents a moderately suitable location for year-round solar PV energy generation, though with significant seasonal variations typical of its Northern Temperate Zone position.
Seasonal Solar Performance
The location shows strong summer performance with solar panels generating 5.86kWh per day per kW of installed capacity. Spring also delivers excellent results at 5.11kWh per day per kW, making these the ideal seasons for solar energy production at this coastal Spanish location. However, the winter months present more challenging conditions, with output dropping significantly to just 1.78kWh per day per kW of installed solar capacity. Autumn provides moderate generation at 3.12kWh per day per kW, representing a substantial decline from the peak summer months.Optimal Panel Configuration
For maximum year-round energy production at San Vicente de la Barquera, solar panels should be installed at a fixed tilt angle of 37 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying elevation throughout the year and weighting these angles against the location's solar irradiance potential.Local Factors Affecting Solar Production
Several environmental and weather factors at San Vicente de la Barquera could significantly impact solar panel performance:- Marine Salt Spray: The coastal location exposes panels to salt-laden air that can accumulate on panel surfaces, reducing efficiency
- High Humidity: Coastal humidity can promote dirt and debris adhesion to panels
- Atlantic Weather Systems: The location faces frequent cloud cover and precipitation from Atlantic weather fronts
- Coastal Winds: Strong maritime winds can carry sand, salt, and debris onto panel surfaces
Preventative Installation Measures
To maximize solar energy production despite these challenges, several installation strategies should be implemented:- Anti-Soiling Coatings: Apply hydrophobic nano-coatings to panel surfaces to help rain wash away salt deposits and reduce cleaning frequency
- Robust Mounting Systems: Install heavy-duty mounting hardware designed to withstand coastal wind loads and corrosion
- Corrosion-Resistant Materials: Use marine-grade aluminum or stainless steel components for all mounting hardware and electrical connections
- Enhanced Drainage: Design installations with adequate panel spacing and drainage to prevent water pooling
- Regular Maintenance Schedule: Implement more frequent cleaning and inspection routines than typical inland installations
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 San Vicente De La Barquera
Seasonal solar PV output for Latitude: 43.3814, Longitude: -4.3386 (San Vicente De La Barquera, 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 37° South in San Vicente De La Barquera, Spain
To maximize your solar PV system's energy output in San Vicente De La Barquera, Spain (Lat/Long 43.3814, -4.3386) 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 San Vicente De La Barquera, 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 San Vicente De La Barquera, Spain. 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 |
|---|---|---|---|
| 27° South in Summer | 47° South in Autumn | 58° South in Winter | 36° 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 San Vicente De La Barquera, 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 San Vicente De La Barquera, 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 San Vicente De La Barquera, Spain
Topographical Features of San Vicente de la Barquera
San Vicente de la Barquera sits along Spain's rugged northern coastline in the autonomous community of Cantabria, where the Cantabrian Mountains meet the Bay of Biscay. This picturesque coastal town occupies a strategic position on a rocky promontory that juts into the sea, creating a natural harbor that has served mariners for centuries. The immediate landscape combines dramatic coastal cliffs, rolling hills, and fertile river valleys that characterize this section of Spain's Green Coast. The terrain around San Vicente de la Barquera features a complex mixture of elevations and landforms. To the south, the land rises steadily toward the foothills of the Picos de Europa, creating a backdrop of increasingly steep terrain covered in dense forests and mountain pastures. The coastal area itself alternates between sandy beaches, rocky headlands, and tidal estuaries where several rivers meet the sea. These waterways have carved distinctive valleys through the landscape, creating pockets of flat agricultural land interspersed with gentle slopes. The region's topography reflects its position within the Cantabrian coastal range, where ancient geological processes have created a landscape of moderate hills typically ranging from sea level to several hundred meters in elevation. The terrain becomes progressively more mountainous as one travels inland, with the coastal plain giving way to steeper gradients and more challenging topographical conditions.Climate and Environmental Considerations
The area experiences a maritime climate heavily influenced by its proximity to the Atlantic Ocean. This oceanic climate brings frequent cloud cover, high humidity, and substantial precipitation throughout much of the year. The combination of sea breezes, mountainous terrain to the south, and prevailing weather patterns from the Atlantic creates a climate that differs markedly from the Mediterranean conditions found in southern Spain. Vegetation in the region reflects these climatic conditions, with lush green landscapes dominating the scenery. Dense forests of oak, beech, and chestnut trees cover many hillsides, while coastal areas support specialized plant communities adapted to salt spray and maritime conditions. Agricultural lands typically support dairy farming and crops suited to the moist climate.Solar Energy Potential in the Regional Context
The topographical and climatic characteristics around San Vicente de la Barquera present both opportunities and challenges for large-scale solar photovoltaic installations. The frequent cloud cover and high precipitation levels that define this region's climate significantly impact solar energy potential compared to Spain's sunnier southern regions. The most suitable areas for large-scale solar installations would be found on the gentler slopes and plateau areas located several kilometers inland from the immediate coast. These locations offer several advantages including more stable weather patterns with reduced influence from coastal fog and marine layer effects. The rolling hills and agricultural valleys south and east of the town provide terrain that could accommodate solar arrays while avoiding the steepest mountain slopes. Areas around the municipalities of Pesues, Serdio, and the broader Nansa River valley offer relatively flat to gently sloping terrain that could support solar installations. These inland locations benefit from being positioned away from the most frequent coastal weather disturbances while still maintaining reasonable accessibility for construction and maintenance activities. The agricultural plains extending eastward toward Santillana del Mar and westward toward Llanes present additional possibilities, though careful consideration would be needed to balance energy production with existing agricultural uses and environmental preservation. These areas typically feature gentler topography and established infrastructure that could support solar development. However, any large-scale solar development in this region would need to account for the area's designation as part of various natural and cultural protection zones. The proximity to the Picos de Europa National Park and numerous sites of cultural significance places additional constraints on potential development locations.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: Tuesday 29th of July 2025
Last Updated: Thursday 7th 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.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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