Solar Energy Potential in Marco de Canaveses, Portugal

Marco de Canaveses, a location in northern Portugal, offers considerable potential for solar energy generation throughout the year. This site, positioned at 41.1849° N, -8.1484° E in the Northern Temperate Zone, experiences significant seasonal variations in solar energy production.

Seasonal Solar Production

The location shows a distinct pattern of energy generation across the seasons. Summer stands out as the most productive period, yielding 7.41kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 6.05kWh/day. Production decreases substantially in autumn to 3.91kWh/day, while winter represents the lowest output period with only 2.13kWh/day per installed kilowatt. This seasonal pattern indicates that Marco de Canaveses is particularly well-suited for solar energy generation from late spring through early autumn. The significant drop in winter production suggests that supplementary energy sources might be beneficial during the colder months for those seeking year-round energy independence.

Optimal Panel Installation

For fixed solar panel installations at this location, the ideal tilt angle to maximize year-round energy production is 35 degrees facing South. This angle has been calculated to optimize the capture of solar radiation throughout the year, accounting for the Earth's elliptical orbit and the specific latitude of Marco de Canaveses.

Environmental and Weather Considerations

Several environmental factors could potentially impact solar energy production at this site. The northern Portuguese climate occasionally experiences:

• Fog and mist in valley areas, particularly during winter mornings
• Occasional hail storms that could physically damage panels
• Dust accumulation during dry summer periods

To mitigate these challenges, installations should incorporate protective measures such as hail-resistant panels, regular cleaning schedules (especially after dry, dusty periods), and positioning panels above typical fog lines where possible. Additionally, a slight increase in the tilt angle beyond the recommended 35 degrees might help with natural cleaning from rainfall, though this would come with a minor reduction in overall efficiency. The location's moderate climate generally poses fewer extreme challenges than many other regions, making it a reasonably good candidate for solar energy investment despite the significant seasonal variations in production.

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 Marco De Canaveses

Seasonal solar PV output for Latitude: 41.1849, Longitude: -8.1484 (Marco De Canaveses, 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 Marco De Canaveses, Portugal

To maximize your solar PV system's energy output in Marco De Canaveses, Portugal (Lat/Long 41.1849, -8.1484) 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 Marco De Canaveses, 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 Marco De Canaveses, 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 Marco De Canaveses, 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 Marco De Canaveses, Portugal.

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 Marco De Canaveses, Portugal

The area surrounding Marco de Canaveses in northern Portugal presents a varied and distinctive topography characteristic of the transitional zone between the coastal plains and the more rugged interior of the country. Located in the district of Porto, this municipality sits within the Douro Valley region, a landscape shaped by millennia of geological processes and human activity.

Terrain and Elevation

Marco de Canaveses is nestled among rolling hills and valleys with moderate elevation changes. The terrain is characterized by undulating landscapes with elevations typically ranging between 200 and 600 meters above sea level. The topography becomes more pronounced toward the east, where the land rises toward the mountainous interior regions of Portugal. A defining feature of the area's topography is the Tâmega River, which flows through the region, carving valleys and creating natural boundaries. This waterway has significantly influenced the local landscape, creating fertile valleys amidst the otherwise hilly terrain. The river valley provides some flatter areas within an otherwise predominantly rolling landscape.

Geological Features

The bedrock of the region consists primarily of granite and schist formations, common throughout northern Portugal. These ancient geological foundations have weathered over time to create the characteristic rounded hills and occasional rocky outcrops visible throughout the landscape. The soil composition varies across the region, with thinner soils on higher slopes and richer, deeper soils in the valley bottoms. This variation has traditionally influenced land use patterns, with steeper slopes historically used for vineyards and forestry, while valley bottoms support more intensive agriculture.

Vegetation and Land Use

The natural vegetation of the area consists of a mix of Atlantic and Mediterranean influences. Pine forests cover many of the hillsides, interspersed with eucalyptus plantations, oak woodlands, and areas of scrub vegetation. The lower valleys support agricultural activities, including vineyards and small-scale farming. Human modification of the landscape is evident throughout the region, with terracing on many hillsides - a traditional technique used to create level areas for agriculture on otherwise steep terrain. These terraces are particularly notable in areas devoted to viniculture.

Solar PV Potential Areas

For large-scale solar photovoltaic installations, several nearby areas present favorable conditions based on topographical considerations:

Southeastern Plateaus

The more elevated plateau areas southeast of Marco de Canaveses offer promising locations for solar PV development. These higher elevation zones typically experience less fog and atmospheric interference than the river valleys. The gently rolling terrain at these higher elevations provides relatively flat expanses that would require minimal grading for solar array installation.

Abandoned Quarry Sites

The region has several former granite quarry sites which present opportunities for solar development. These already-disturbed lands often feature cleared, south-facing slopes with minimal vegetation and good solar exposure. Repurposing these industrial sites for renewable energy production represents an environmentally sensitive approach to solar development.

Agricultural Transition Zones

Areas where traditional agriculture has become less economically viable present opportunities for solar development. These transition zones, often found on the medium-elevation hillsides surrounding the municipality, typically have good solar exposure while being less productive for conventional farming. The moderate slopes in these areas still allow for effective solar panel placement with appropriate design considerations.

Challenges of the Douro Valley

While the immediate river valleys offer flat terrain that might initially seem suitable for solar development, these lower-lying areas present challenges including morning fog, higher humidity, and potential shading from surrounding hills during early and late daylight periods. Additionally, these fertile valley bottoms represent some of the most productive agricultural land in the region. The ideal solar PV sites in this region balance the need for relatively flat terrain with good solar exposure, avoiding both the steepest slopes and the lowest valley areas. South-facing hillsides with moderate slopes between the river valleys and higher elevations often present the optimal compromise between accessibility, land cost, and solar potential.

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!

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.