Solar PV Analysis of Matosinhos Municipality, Portugal
The location in Matosinhos Municipality, Porto, Portugal, situated at coordinates 41.1765, -8.6877, presents a mixed picture for solar energy generation throughout the year. This coastal area in northern Portugal experiences significant seasonal variations in solar energy production, which impacts the overall efficiency of photovoltaic (PV) systems.
Seasonal Solar Energy Production
Summer stands out as the most productive season for solar energy in Matosinhos, with an impressive average daily output of 7.43 kWh per kW of installed solar capacity. Spring follows closely behind, generating 6.09 kWh/day. These warmer months offer ideal conditions for solar energy production, with longer daylight hours and generally clearer skies.
However, the picture changes dramatically during the colder months. Autumn sees a significant drop in production to 3.97 kWh/day, while winter experiences the lowest output at just 2.19 kWh/day per kW installed. This substantial seasonal variation highlights the challenges of relying solely on solar energy in this region year-round.
Optimal Panel Positioning
To maximize year-round solar energy production in Matosinhos, fixed solar panels should be installed at a tilt angle of 35 degrees facing south. This angle has been calculated to optimize the capture of sunlight throughout the year, considering the location's latitude and seasonal sun paths.
Environmental and Weather Considerations
Several factors specific to Matosinhos's coastal location can impact solar energy production:
- Coastal fog and mist, particularly in the mornings, can reduce solar irradiance.
- Salt spray from the nearby Atlantic Ocean may accelerate corrosion of solar equipment if not properly protected.
To mitigate these challenges, solar installations in Matosinhos should incorporate corrosion-resistant materials and protective coatings. Regular cleaning of panels to remove salt deposits is also advisable. Additionally, investing in high-quality, fog-resistant PV panels can help maintain efficiency during misty conditions.
Despite these challenges, Matosinhos's location still offers good potential for solar energy production, especially during the spring and summer months. With proper planning and maintenance, a solar PV system can provide a significant contribution to the area's energy needs, particularly when combined with other renewable energy sources to balance the seasonal variations.
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 179 locations across Portugal. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Portugal by location
Solar output per kW of installed solar PV by season in Matosinhos Municipality
Seasonal solar PV output for Latitude: 41.1765, Longitude: -8.6877 (Matosinhos Municipality, Portugal), 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 35° South in Matosinhos Municipality, Portugal
To maximize your solar PV system's energy output in Matosinhos Municipality, Portugal (Lat/Long 41.1765, -8.6877) throughout the year, you should tilt your panels at an angle of 35° 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 Matosinhos Municipality, Portugal
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 Matosinhos Municipality, Portugal. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 25° South in Summer | 46° South in Autumn | 56° South in Winter | 33° 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 Matosinhos Municipality, Portugal
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 Matosinhos Municipality, Portugal.
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 Matosinhos Municipality, Portugal
The topography around Matosinhos Municipality in Portugal is characterized by a mix of coastal lowlands and gently rolling hills. Located on the western coast of the country, Matosinhos sits at the edge of the Atlantic Ocean, with its western border defined by sandy beaches and rocky shorelines.
Moving inland from the coast, the terrain gradually rises, forming a series of low hills and plateaus. These elevations are generally modest, rarely exceeding 100 meters above sea level. The landscape is intersected by several small rivers and streams that flow westward towards the ocean, creating shallow valleys and occasional floodplains.
To the east and northeast of Matosinhos, the terrain becomes slightly more elevated and undulating as it transitions into the broader Porto metropolitan area. This region features a patchwork of urban developments, agricultural lands, and pockets of forested areas.
Areas Suitable for Large-Scale Solar PV
When considering locations for large-scale solar photovoltaic (PV) installations near Matosinhos, several factors come into play. The most suitable areas would typically be:
1. Inland plateaus: The gently rolling hills and flat plateaus to the east and southeast of Matosinhos offer promising locations for solar farms. These areas generally receive good sun exposure and have fewer obstructions that could cast shadows on solar panels.
2. Agricultural lands: Some of the less productive agricultural areas in the region could be repurposed for solar energy production. These locations often have the advantage of being relatively flat and clear of tall vegetation.
3. Brownfield sites: Any former industrial areas or abandoned lands that are not suitable for other developments could be ideal for solar PV installations. These sites are often already connected to the power grid and have minimal environmental impact.
4. Coastal areas with stable cliffs: While close proximity to the ocean can pose challenges due to salt spray and potential erosion, some of the more stable coastal areas with elevated cliffs could provide good locations for solar farms, benefiting from unobstructed sunlight.
It's important to note that any large-scale solar PV project would require detailed site assessments, environmental impact studies, and compliance with local regulations. The relatively high population density and urbanization in the greater Porto area may limit the availability of large, contiguous areas for solar farms, so careful planning and potentially smaller, distributed installations might be necessary.
Portugal solar PV Stats as a country
Portugal ranks 32nd in the world for cumulative solar PV capacity, with 1,801 total MW's of solar PV installed. This means that 3.40% of Portugal's total energy as a country comes from solar PV (that's 23rd in the world). Each year Portugal is generating 174 Watts from solar PV per capita (Portugal ranks 29th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Portugal?
Yes, there are several incentives for businesses wanting to install solar energy in Portugal. The Portuguese government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy sources such as solar power. These include grants, loans, and tax credits. Additionally, the government has set up a feed-in tariff system which guarantees a fixed price for electricity generated from renewable sources such as solar power. This helps to make investing in solar energy more attractive to businesses.
Do you have more up to date information than this on incentives towards solar PV projects in Portugal? 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: Friday 6th of September 2024
Last Updated: Monday 21st of July 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.
