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Flag of Costa RicaSolar PV Analysis of Cabuya, Costa Rica

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Cabuya, Costa Rica (by season)

Cabuya, Puntarenas Province, Costa Rica presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropics at coordinates 9.6024°N, -85.0833°W, this area benefits from consistent sunlight throughout the year, with seasonal variations characterized more by wet and dry periods than traditional temperature-based seasons.

Solar Energy Production Potential

The solar energy output data for Cabuya demonstrates strong and reliable performance across all seasons. Winter and spring emerge as the peak production periods, generating 6.36 kWh/day and 6.64 kWh/day per kW of installed solar capacity respectively. Summer and autumn show slightly lower but still robust output at 5.70 kWh/day and 5.52 kWh/day per kW respectively. This seasonal pattern aligns well with Costa Rica's dry season, which typically runs from December through April, corresponding to the meteorological winter and spring months when solar production peaks. The slightly reduced output during summer and autumn coincides with the country's wet season. For optimal year-round performance, solar panels should be installed at a fixed tilt angle of 10 degrees facing south. This angle maximizes total annual solar production by accounting for the sun's path throughout the year and the location's proximity to the equator.

Environmental and Weather Challenges

Several environmental factors in Cabuya could potentially impact solar energy production, though most can be effectively managed with proper installation techniques. The wet season, typically occurring during the meteorological summer and autumn months, brings increased cloud cover and frequent rainfall. While this corresponds to the periods of slightly lower solar output shown in the data, the impact is relatively modest. Rain can actually benefit solar installations by naturally cleaning dust and debris from panel surfaces. Humidity levels remain high year-round in this tropical coastal location, which can lead to faster degradation of electrical components if not properly protected. Salt air from the nearby Pacific Ocean poses an additional challenge, as it can cause corrosion of metal components and connections over time. The tropical environment also supports abundant vegetation growth, which could create shading issues if trees or other plants are allowed to grow unchecked near solar installations.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production in Cabuya's tropical environment:
  • Use marine-grade components and corrosion-resistant materials specifically designed for coastal installations
  • Ensure proper sealing of all electrical connections and use weatherproof enclosures for inverters and other equipment
  • Install panels with adequate ventilation underneath to prevent overheating and moisture buildup
  • Implement regular vegetation management around solar installations to prevent shading
  • Design systems with appropriate drainage to handle heavy rainfall during wet season
Regular maintenance becomes particularly important in this environment. Monthly visual inspections and quarterly professional maintenance can help identify and address issues before they significantly impact energy production. The natural cleaning effect of frequent rainfall during the wet season actually reduces the need for manual panel cleaning compared to drier climates. Despite these environmental considerations, Cabuya's consistent solar output throughout the year makes it an ideal location for solar PV installations, with proper design and maintenance ensuring reliable renewable energy generation.

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

Link: Solar PV potential in Costa Rica by location

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

Seasonal solar PV output for Latitude: 9.6024, Longitude: -85.0833 (Cabuya, Costa Rica), 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:

Summer
Average 5.70kWh/day in Summer.
Autumn
Average 5.52kWh/day in Autumn.
Winter
Average 6.36kWh/day in Winter.
Spring
Average 6.64kWh/day in Spring.

 

Ideally tilt fixed solar panels 10° South in Cabuya, Costa Rica

To maximize your solar PV system's energy output in Cabuya, Costa Rica (Lat/Long 9.6024, -85.0833) throughout the year, you should tilt your panels at an angle of 10° 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.

The sun
At Latitude: 9.6024, Longitude: -85.0833, the ideal angle to tilt panels is 10° South

Seasonally adjusted solar panel tilt angles for Cabuya, Costa Rica

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 Cabuya, Costa Rica. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 10° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
7° North in Summer 16° South in Autumn 25° South in Winter 4° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Cabuya, Costa Rica as follows: In Summer, set the angle of your panels to 7° facing North. In Autumn, tilt panels to 16° facing South for maximum generation. During Winter, adjust your solar panels to a 25° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 4° angle facing South to capture the most solar energy in Cabuya, Costa Rica.

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 Cabuya, Costa Rica

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 Cabuya, Costa Rica.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Cabuya, Costa Rica

Topographical Features Around Cabuya

Cabuya sits at the southern tip of the Nicoya Peninsula in Costa Rica's Puntarenas Province, where the Pacific Ocean meets a landscape characterized by rolling hills and coastal plains. The immediate area around this small coastal community features relatively gentle topography, with elevations gradually rising from sea level to modest hills that rarely exceed 200 meters in height. The terrain consists primarily of weathered volcanic soils and sedimentary formations typical of this part of the Nicoya Peninsula.

The coastline near Cabuya is rugged and rocky in places, particularly around the famous Cabuya Island, which can be reached on foot during low tide. Moving inland from the coast, the landscape transitions from narrow coastal flats to undulating hills covered with a mixture of tropical dry forest, pastureland, and small agricultural plots. These hills create a series of ridges and valleys that run roughly parallel to the coastline, with the highest elevations found several kilometers inland.

The region experiences distinct wet and dry seasons, which have shaped the local topography through centuries of erosion and sediment deposition. Stream beds and small rivers cut through the landscape, creating natural drainage patterns that flow toward the Pacific Ocean. Many of these waterways are seasonal, flowing strongly during the rainy months but reducing to minimal flow or drying completely during the dry season.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Cabuya would be found on the gently sloping plateaus and ridge tops that extend inland from the immediate coastal zone. These elevated areas, typically ranging from 50 to 150 meters above sea level, offer several advantages for solar development. The terrain is stable, well-drained, and generally free from the salt spray and humidity that can affect coastal installations.

The broad, relatively flat areas found approximately 2 to 5 kilometers inland from Cabuya present the most promising opportunities. These locations feature gentle south-facing slopes that would be ideal for solar panel orientation, while the elevation provides good air circulation that helps maintain optimal operating temperatures for photovoltaic equipment. The existing road network in this region, while modest, provides reasonable access for construction and maintenance activities.

Areas to the northeast and east of Cabuya, where the topography opens into wider valleys and plateaus, would be particularly well-suited for large installations. These zones benefit from being far enough inland to avoid coastal weather extremes while remaining accessible via existing transportation infrastructure. The terrain in these areas is generally stable, with good drainage characteristics that would minimize flooding risks during the rainy season.

The cleared pasturelands and former agricultural areas scattered throughout the inland hills would require minimal site preparation compared to forested areas, making them economically attractive for solar development. These open spaces already have established access routes and are typically located on well-drained soils that would support the infrastructure requirements of large-scale solar installations.

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Cabuya, Costa Rica
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 17th of July 2025
Last Updated: Wednesday 6th of August 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.

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