Biar, Valencia, Spain, located at 38.6358° N, -0.7595° E, offers a reasonably favorable location for solar PV energy generation throughout the year. This municipality in the Alicante province experiences distinct seasonal variations in solar energy production, with particularly strong performance during the summer months.

Seasonal Solar Production

Solar panels in Biar generate their highest output during summer, producing approximately 7.53 kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 5.68 kWh/day, while autumn yields a moderate 4.04 kWh/day. Winter shows the lowest production at 2.82 kWh/day per kW installed.

This seasonal pattern creates a significant difference between summer and winter production, with summer generating nearly three times the electricity of winter months. The shoulder seasons of spring and autumn provide intermediate production levels, with spring being notably stronger than autumn.

Optimal Panel Installation

For fixed solar panel installations in Biar, Valencia, the ideal tilt angle to maximize year-round energy production is 33 degrees facing South. This angle has been calculated based on Biar's specific latitude and solar elevation patterns throughout the year, weighted by the location's solar potential.

Environmental Considerations

Several environmental factors could potentially affect solar production in Biar:

• Dust accumulation: Biar's semi-arid climate means dust can build up on panels, particularly during dry periods, reducing efficiency by 4-10%. Regular cleaning schedules, ideally every 2-3 months, can mitigate this issue.
• Occasional heat waves: During intense summer heat, panel efficiency may decrease slightly as photovoltaic cells become less efficient at temperatures above 25°C. Installing panels with sufficient airflow beneath them can help reduce this effect.
• Winter fog: The inland location occasionally experiences morning fog in winter months, potentially reducing morning production. This is a natural limitation that installation positioning cannot fully overcome.

Despite these minor challenges, Biar's location in southeastern Spain provides excellent solar conditions overall, with approximately 300 sunny days annually. The substantial difference between summer and winter production suggests that system sizing should account for seasonal variations, potentially incorporating storage solutions to balance energy availability throughout the year.

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 Biar

Seasonal solar PV output for Latitude: 38.6358, Longitude: -0.7595 (Biar, 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 Biar, Spain

To maximize your solar PV system's energy output in Biar, Spain (Lat/Long 38.6358, -0.7595) 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 Biar, 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 Biar, 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	43° South in Autumn	54° South in Winter	31° 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 Biar, 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 Biar, 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 Biar, Spain

The area surrounding Biar in the province of Alicante, Spain, presents a diverse and rugged topography characteristic of the eastern Iberian Peninsula. Situated at approximately 38.6358° North latitude and 0.7595° West longitude, Biar sits nestled within the foothills of the Prebetic mountain range, at an elevation of around 700 meters above sea level. This location places it within a transitional zone between the coastal Mediterranean plains and the higher interior plateaus of Spain. The landscape around Biar is defined by a series of valleys, hills, and mountains that create a varied terrain. To the north and west, the topography becomes increasingly mountainous, with several peaks exceeding 1,000 meters in height. The Sierra de la Fontanella and Sierra del Fraile mountain ranges dominate these directions, creating dramatic backdrops with steep slopes and rocky outcroppings. These mountains are part of the larger Prebetic System, which runs parallel to the Mediterranean coast. To the east and south, the terrain gradually descends toward the Mediterranean coast, about 40 kilometers away. This transition creates a series of rolling hills, terraced agricultural lands, and wider valleys. The Rio Vinalopó valley cuts through the region, providing a natural corridor that has historically facilitated movement and settlement.

Potential Areas for Solar PV Development

When considering areas suited for large-scale solar photovoltaic installations near Biar, several factors must be evaluated including topographical features, land availability, grid connectivity, and environmental considerations. The gently sloping areas south and southeast of Biar offer promising potential for solar PV development. These regions benefit from favorable terrain that receives consistent solar exposure throughout the day. The gradual descent toward the Mediterranean means these areas avoid significant shadowing from mountain ranges. Specifically, the broader valleys and plateaus between Biar and neighboring municipalities like Villena and Sax present relatively flat terrain that would minimize grading costs during installation. Another promising area lies in the slightly elevated plateaus to the west of Biar, where the landscape flattens somewhat before rising into the more dramatic mountains. These plateaus receive excellent solar radiation due to their elevation and relatively unobstructed southern exposure. The terrain here is characterized by sparse vegetation and non-irrigated agricultural land, potentially making conversion to solar use more feasible. The agricultural plains north of Castalla, approximately 10 kilometers southeast of Biar, represent another viable option. This area features more extensive flat terrain with good solar exposure and proximity to existing infrastructure. The transition zone between agricultural land and more arid, less productive areas would likely present fewer land-use conflicts. Areas to avoid would include the steeper northern and western mountain slopes, where installation would be technically challenging and economically prohibitive. Similarly, the densely vegetated valleys with permanent water courses should be excluded due to their ecological value and the shadowing effect of surrounding terrain. The semi-arid climate of the region, with minimal cloud cover throughout much of the year, enhances the suitability of these areas for solar energy production. The combination of elevation, clear atmospheric conditions, and optimal sun angles makes the identified zones particularly well-suited for capturing solar energy efficiently.

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.