Praia, the capital city of Cabo Verde, located on the island of Santiago, offers a promising environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, making it an attractive spot for solar photovoltaic (PV) installations.

Seasonal Solar Output

The solar energy potential in Praia remains relatively high across all seasons, with some variations: Spring sees the highest output at 7.49 kWh per day for each kilowatt of installed solar capacity. Summer follows with 6.65 kWh/day, then autumn with 5.98 kWh/day, and winter with the lowest, but still substantial, 5.46 kWh/day. This pattern indicates that while solar energy production is viable year-round, the most productive period is during the spring months. The relatively small variation between seasons suggests a stable and reliable solar resource throughout the year.

Optimal Panel Tilt

For fixed solar panel installations in Praia, the ideal tilt angle to maximize year-round energy production is 13 degrees facing South. This angle has been calculated taking into account the city's latitude, the Earth's elliptical orbit, and daily solar elevation angles, weighted by the potential daily PV output.

Environmental Considerations

While Praia's location is generally favorable for solar energy, there are a few environmental factors to consider: 1. Dust and sand: Given Cabo Verde's proximity to the Sahara Desert, airborne dust and sand can accumulate on solar panels, potentially reducing their efficiency. 2. Salt spray: As a coastal location, salt spray from the ocean can build up on panels, potentially causing corrosion over time. To mitigate these issues, regular cleaning and maintenance of solar panels is crucial. Installing panels at the recommended tilt angle can help with natural cleaning during rainfall. Additionally, using corrosion-resistant materials and protective coatings can extend the lifespan of the solar installation in this coastal environment. Overall, Praia's location in Cabo Verde presents an excellent opportunity for solar energy production, with high and consistent output throughout the year, and manageable environmental challenges that can be addressed through proper installation and maintenance practices.

Note: The Tropics are located between 23.5° North and -23.5° South of the equator.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 8 locations across Cabo Verde. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Cabo Verde by location

Solar output per kW of installed solar PV by season in Praia

Seasonal solar PV output for Latitude: 14.923, Longitude: -23.508 (Praia, Cabo Verde), 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 13° South in Praia, Cabo Verde

To maximize your solar PV system's energy output in Praia, Cabo Verde (Lat/Long 14.923, -23.508) throughout the year, you should tilt your panels at an angle of 13° 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 Praia, Cabo Verde

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 Praia, Cabo Verde. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 13° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
1° North in Summer	20° South in Autumn	30° South in Winter	8° 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 Praia, Cabo Verde

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 Praia, Cabo Verde.

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 Praia, Cabo Verde

The topography around Praia, the capital city of Cabo Verde, is characterized by a mix of coastal lowlands and rugged, volcanic terrain. Praia itself is situated on a plateau overlooking the Atlantic Ocean, with an elevation of about 30 meters above sea level. The city is surrounded by a series of hills and small mountains, which are remnants of ancient volcanic activity.

To the north and west of Praia, the landscape becomes more mountainous, with steep slopes and rocky outcrops. The highest point on Santiago Island, where Praia is located, is Pico da Antónia, which reaches an elevation of approximately 1,394 meters. This peak is situated about 20 kilometers northwest of the city.

The coastline near Praia features a mix of rocky cliffs and sandy beaches. To the east and southeast of the city, the terrain is generally flatter, with some areas of gently rolling hills. This region is more arid and experiences less rainfall than the mountainous interior of the island.

For large-scale solar PV installations, the areas most suited would likely be the flatter, more open spaces to the east and southeast of Praia. These regions offer several advantages for solar energy production:

1. They receive ample sunlight due to their position and relatively clear skies.
2. The terrain is less mountainous, making construction and maintenance easier.
3. There is more available land that is not used for agriculture or urban development.
4. The proximity to the capital city means easier access to infrastructure and the power grid.

However, it's important to note that any large-scale solar project would need to consider factors such as land ownership, environmental impact, and the island's specific energy needs. Additionally, while the eastern areas may be most suitable, there could be potential for smaller-scale solar installations on hillsides or in other areas around Praia, depending on local conditions and requirements.

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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.