Solar Energy Potential in Portoviejo, Manabí, Ecuador

Portoviejo, Manabí, Ecuador, situated at latitude -1.0541 and longitude -80.4486, offers a promising location for solar energy production throughout the year. Being located in the tropics, this region benefits from relatively consistent sunlight patterns, with seasonal variations primarily defined by wet and dry periods rather than dramatic changes in daylight duration.

Seasonal Solar Production

The solar energy generation potential in Portoviejo shows some variation across the meteorological seasons:

• Summer: 4.38 kWh per day for each kW of installed capacity
• Autumn: 4.63 kWh per day for each kW of installed capacity
• Winter: 3.57 kWh per day for each kW of installed capacity
• Spring: 4.10 kWh per day for each kW of installed capacity

These figures indicate that autumn represents the peak production period, while winter shows the lowest output. However, the relatively small variation between seasons (approximately 23% difference between the highest and lowest outputs) confirms the region's year-round solar potential.

Optimal Panel Installation

For fixed solar panel installations in Portoviejo, Manabí, the ideal tilt angle to maximize year-round energy production is 1 degree facing North. This nearly flat orientation reflects Portoviejo's proximity to the equator, where the sun passes almost directly overhead throughout much of the year.

Environmental and Weather Considerations

Despite favorable conditions, several factors may affect solar production in Portoviejo: Ecuador's coastal regions experience a rainy season typically running from December to May, which coincides with the meteorological winter when production is already at its lowest. Heavy cloud cover during these months can temporarily reduce solar output. Portoviejo's tropical climate means high humidity and temperatures, which can slightly decrease panel efficiency. Additionally, the region is susceptible to El Niño weather patterns, which can bring extended periods of heavy rainfall.

Preventative Measures

To maximize solar energy production in Portoviejo, Manabí, several practical steps can be taken: Install panels with adequate spacing and elevated mounting to promote airflow, helping mitigate efficiency losses from high temperatures. Consider using panels specifically designed for tropical climates with better heat tolerance. Implement a regular cleaning schedule, especially during the dry season when dust accumulation is higher. During the rainy season, ensure drainage systems prevent water accumulation on or around the installation. For larger installations, weather-resistant housing for inverters and other sensitive components will protect against humidity and potential flooding during heavy rains. Considering the minimal seasonal variation, Portoviejo represents an excellent location for solar energy production with relatively consistent output throughout the year, making it a reliable renewable energy source for local needs.

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 108 locations across Ecuador. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Ecuador by location

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

Seasonal solar PV output for Latitude: -1.0541, Longitude: -80.4486 (Portoviejo, Ecuador), 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 1° North in Portoviejo, Ecuador

To maximize your solar PV system's energy output in Portoviejo, Ecuador (Lat/Long -1.0541, -80.4486) throughout the year, you should tilt your panels at an angle of 1° North 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 Portoviejo, Ecuador

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 Portoviejo, Ecuador. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 1° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
14° South in Summer	7° North in Autumn	17° North in Winter	5° 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 Portoviejo, Ecuador

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 Portoviejo, Ecuador.

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 Portoviejo, Ecuador

The area around Portoviejo, Ecuador is characterized by varied and distinctive topography that influences its climate, ecosystems, and potential for renewable energy development. Portoviejo sits in a broad valley surrounded by hills and low mountains, with the city itself at an elevation of approximately 60 meters above sea level.

Valley and Mountain Setting

Portoviejo is nestled in the Portoviejo River Valley, a fertile lowland area that extends through much of Manabí Province. This valley is flanked by modest mountain ranges that generally don't exceed 600 meters in elevation. The Cerros de Hojas and Montecristi hills rise to the west and southwest, while the more substantial Coastal Mountain Range (Cordillera Costanera) extends along the eastern side of the valley. This valley-mountain configuration creates a semi-enclosed basin that affects local climate patterns. The surrounding elevations provide some shelter from coastal winds while also creating distinct microclimates within relatively short distances.

Coastal Influence

Though Portoviejo itself is inland, the Pacific Ocean lies just about 35 kilometers to the west. This proximity to the coast influences the regional climate, with maritime air masses affecting temperature and humidity. The transition from coastal plains to inland valleys creates interesting topographical gradients as one moves eastward from the shoreline through increasingly elevated terrain. The coastal areas west of Portoviejo feature flatter topography with extensive plains that gradually rise into the hill country surrounding the city. These coastal plains receive strong solar radiation with minimal shadowing from topographical features.

Solar PV Potential Areas

When considering large-scale solar photovoltaic development near Portoviejo, several areas stand out as particularly promising based on topographical considerations: The gently sloping plains to the west and northwest of Portoviejo, extending toward Manta and the coast, offer excellent conditions for solar installations. These areas combine relatively flat terrain with good solar exposure and minimal risk of shadowing from mountains. The land here tends to be less agriculturally productive than the river valley, making it potentially available for energy development. The elevated plateaus and terraces found in the hills south and southeast of Portoviejo also present attractive options. These locations benefit from reduced atmospheric interference due to their elevation, while still offering sufficiently flat terrain for large installations. Areas around Picoazá and extending toward Santa Ana have favorable topography with south-facing slopes that would maximize solar capture throughout the day. The drier hill country northeast of Portoviejo, extending toward Rocafuerte, features a combination of flat-topped ridges and broad valleys that could accommodate substantial solar arrays. The topography here is characterized by rolling hills rather than steep mountains, providing many suitable building sites with minimal need for extensive grading or earthwork.

Topographical Challenges

Not all areas around Portoviejo are equally suitable for solar development. The steeper slopes of the Coastal Mountain Range to the east present challenges for large-scale installations due to difficult access, potential shadowing, and increased construction costs. Similarly, the fertile floodplain of the Portoviejo River itself, while flat and accessible, represents valuable agricultural land that may be better reserved for food production. The region also experiences seasonal flooding in some lowland areas, particularly during El Niño years. Solar developers would need to carefully assess flood risk when selecting sites, favoring slightly elevated areas that remain dry even during heavy rainfall periods. In summary, the diverse topography around Portoviejo creates numerous opportunities for solar PV development, with the western plains and southern plateaus offering particularly promising conditions due to their combination of favorable terrain, good solar exposure, and relatively lower agricultural value compared to the central river valley.

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.