Solar PV Analysis of Senhora Da Hora, Portugal
Senhora da Hora, Portugal, located in the Northern Temperate Zone, offers a moderate potential for solar energy generation throughout the year. This coastal town experiences varying levels of solar productivity across different seasons, influencing the effectiveness of photovoltaic (PV) installations.
Seasonal Solar Performance
Solar energy production in Senhora da Hora fluctuates significantly with the seasons. Summer stands out as the most productive period, with an impressive daily output of 7.43 kWh per kW of installed solar capacity. Spring follows closely, generating 6.09 kWh/day. Autumn sees a considerable drop to 3.97 kWh/day, while winter experiences the lowest production at 2.19 kWh/day.
The substantial difference between summer and winter output highlights the importance of considering seasonal variations when planning a solar PV system in this area. While summer months offer excellent generation potential, winter's reduced sunlight hours and lower sun angle significantly impact energy production.
Optimal Panel Installation
For fixed panel installations in Senhora da Hora, the ideal tilt angle to maximize year-round solar production is 35 degrees facing South. This angle optimizes the panels' exposure to sunlight throughout the year, balancing the varying sun positions across seasons.
Environmental Considerations
Senhora da Hora's coastal location introduces some environmental factors that could affect solar production. The proximity to the Atlantic Ocean may lead to increased humidity and salt spray, potentially impacting panel efficiency and longevity. To mitigate these effects, installers should consider using corrosion-resistant materials and applying protective coatings to the panels and mounting systems.
Additionally, the area may experience occasional fog or coastal cloud cover, particularly in the morning hours. While not a major impediment, this could slightly reduce overall energy production. Installing panels at a slightly steeper angle than the ideal 35 degrees might help combat morning dew and fog accumulation, ensuring better performance in these conditions.
Overall, Senhora da Hora presents a good opportunity for solar PV installation, with strong potential during spring and summer months. While winter production is notably lower, the annual average remains favorable for renewable energy generation.
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 Senhora Da Hora
Seasonal solar PV output for Latitude: 41.1847, Longitude: -8.651 (Senhora Da Hora, 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 Senhora Da Hora, Portugal
To maximize your solar PV system's energy output in Senhora Da Hora, Portugal (Lat/Long 41.1847, -8.651) 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 Senhora Da Hora, 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 Senhora Da Hora, 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 Senhora Da Hora, 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 Senhora Da Hora, 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 Senhora Da Hora, Portugal
The area around Senhora da Hora, Portugal, is characterized by a diverse and gently undulating topography. This coastal region, located just north of Porto, features a mix of low-lying areas near the Atlantic Ocean and slightly higher elevations as you move inland.
The immediate vicinity of Senhora da Hora is primarily urban and suburban, with a relatively flat terrain. As you move eastward, the land gradually rises, forming gentle hills and small valleys. These elevation changes are not dramatic, typically ranging from sea level to about 100-150 meters above sea level within a few kilometers of the coast.
To the west, the land slopes gently towards the Atlantic Ocean, with some areas of sandy beaches and low cliffs. The coastline in this region is generally straight, with few significant bays or inlets.
Regarding areas suitable for large-scale solar PV installations, the most promising locations would likely be found further inland, east of Senhora da Hora. These areas tend to have more open space and less urban development, which is crucial for solar farms. The gently rolling hills in this direction could provide good exposure to sunlight throughout the day.
However, it's important to note that the northern Portugal region, including the area around Senhora da Hora, experiences a fair amount of cloud cover and rainfall compared to the southern parts of the country. This factor may somewhat reduce the overall efficiency of solar installations compared to sunnier regions.
The best locations for solar PV would ideally be on south-facing slopes that are not shaded by nearby hills or forests. Areas with minimal agricultural value or ecological sensitivity would be preferred to avoid conflicts with food production or environmental conservation efforts. Additionally, proximity to existing electrical infrastructure would be beneficial for connecting the solar installations to the grid.
While there may be some suitable areas for solar PV development in the vicinity of Senhora da Hora, larger and more optimal locations are likely to be found further inland, where there is more available land and potentially better solar exposure due to reduced coastal weather influences.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 30th of August 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.
