Monterroso, Spain offers moderate solar energy generation potential throughout the year, though with significant seasonal variation typical of its Northern Temperate Zone location. The town experiences its peak solar production during summer months and considerably reduced output during winter.

Seasonal Solar Performance

Summer represents the optimal period for solar energy generation at Monterroso, producing 7.10kWh per day per kW of installed capacity. This makes it the most productive season, generating more than double the output of any other time of year. Spring follows as the second-best season with 5.52kWh daily production per kW, making it another favorable period for solar generation. Autumn shows a notable decline in solar output, dropping to 3.50kWh per day per kW of installed solar capacity. Winter presents the most challenging conditions for solar generation, with output falling to just 1.92kWh daily per kW - less than one-third of summer production levels. For optimal year-round energy capture at this location, fixed solar panels should be tilted at 37 degrees facing south. This angle maximizes total annual production by accounting for the sun's changing position throughout the seasons and the varying solar irradiance levels.

Local Environmental Challenges

Several environmental factors in Monterroso could potentially impact solar energy production. The region's Atlantic climate influence brings frequent cloud cover and precipitation, particularly during autumn and winter months, which directly reduces solar irradiance reaching the panels. Galicia's mountainous terrain can create localized weather patterns, including morning fog and increased humidity levels that may affect panel efficiency. The area also experiences Atlantic storms, especially during winter months, which can bring heavy rain, strong winds, and temporary reductions in solar output.

Installation Strategies for Maximum Efficiency

To optimize solar performance despite these challenges, several installation measures should be considered:

• Install panels with adequate drainage systems to prevent water accumulation during heavy rainfall periods
• Use mounting systems designed to withstand Atlantic storm conditions and strong winds
• Position panels to minimize morning fog impact by avoiding low-lying areas where possible
• Implement regular cleaning schedules to remove moisture-related debris and maintain optimal light transmission
• Consider micro-inverters or power optimizers to minimize impact when partial shading occurs from passing clouds

The moderate climate means snow accumulation is rarely a significant concern, unlike locations at higher latitudes or elevations. However, the combination of frequent precipitation and Atlantic weather patterns makes proper system design and maintenance crucial for achieving optimal energy production 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 Monterroso

Seasonal solar PV output for Latitude: 42.8483, Longitude: -7.8216 (Monterroso, 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 Monterroso, Spain

To maximize your solar PV system's energy output in Monterroso, Spain (Lat/Long 42.8483, -7.8216) 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 Monterroso, 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 Monterroso, 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	35° 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 Monterroso, 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 Monterroso, 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 Monterroso, Spain

Topographical Characteristics of Monterroso

Monterroso sits within the rolling hills and gentle valleys of Galicia's interior landscape in northwestern Spain. The terrain around this small municipality is characterized by moderate elevations and undulating countryside, typical of the Galician highlands. The area features a mix of agricultural valleys, forested hillsides, and open meadowlands that create a varied but generally accessible topography.

The elevation around Monterroso ranges from approximately 400 to 600 meters above sea level, with the town itself positioned on relatively level ground within a broader valley system. The surrounding hills rise gradually rather than steeply, creating a landscape that is neither mountainous nor completely flat. This moderate relief is interspersed with numerous small streams and seasonal watercourses that have carved gentle valleys through the terrain over millennia.

The region's geology consists primarily of ancient granite and metamorphic rocks, which have weathered to create soils that support both agriculture and natural vegetation. Dense oak and pine forests cover many of the hillsides, while the lower-lying areas are often cleared for farming, particularly for crops like potatoes, corn, and various vegetables that thrive in Galicia's climate.

Optimal Areas for Large-Scale Solar Development

The most promising locations for substantial solar photovoltaic installations around Monterroso would be the gently sloping hillsides with southern and southwestern exposures. These elevated areas benefit from reduced shading throughout the day while maintaining relatively easy access for construction and maintenance activities. The moderate slopes also provide natural drainage, which is important given Galicia's reputation for significant rainfall.

Agricultural plateaus and cleared farmland on higher ground present excellent opportunities for solar development, particularly areas that are currently used for extensive grazing or lower-intensity farming operations. These locations typically offer good road access and existing electrical infrastructure connections, while the cleared land reduces the environmental impact and cost associated with forest removal.

The valleys immediately surrounding Monterroso, while more accessible, may be less suitable for large installations due to potential morning and evening shading from the surrounding hills. However, the broader valley floors further from steep terrain could accommodate solar farms, especially where the land is relatively flat and currently used for agriculture.

Areas to the south and southwest of Monterroso appear particularly favorable, where the terrain opens up into wider valleys with gentler gradients. These locations would minimize the impact of Galicia's frequent cloud cover and maximize exposure to available sunlight. The existing agricultural infrastructure in these areas also suggests that large-scale development would be more feasible from both logistical and regulatory perspectives.

Ridge lines and hill crests should generally be avoided due to their exposure to strong winds and potential visual impact concerns. Similarly, the steeper forested slopes would require significant clearing and grading, making them less economically attractive for solar development while potentially creating environmental concerns in this ecologically sensitive region of Spain.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.