Coquimbo, Chile represents an excellent location for year-round solar photovoltaic energy generation, positioned in the Southern Sub Tropics at coordinates -29.9533, -71.3349. This coastal city benefits from consistently strong solar production throughout all seasons, making it highly suitable for solar installations.

Seasonal Solar Performance

The solar energy output varies significantly across seasons, with summer delivering the highest production at 7.33 kWh per day per kW of installed capacity. Spring follows as the second-best performing season at 6.33 kWh per day per kW, while autumn produces 4.64 kWh per day per kW. Winter shows the lowest output at 3.47 kWh per day per kW of installed solar capacity. Even during the weakest production period in winter, Coquimbo still generates substantial solar energy, indicating this location's year-round viability for solar projects. The ideal times for maximum solar generation are summer and spring, when the region experiences its peak solar conditions.

Optimal Panel Configuration

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round solar production is 26 degrees facing North. This angle has been calculated by analyzing daily solar elevation angles, determining optimal panel positioning, and weighting these angles using solar irradiance data while accounting for Earth's elliptical orbit patterns.

Environmental and Weather Challenges

Several local factors could potentially impact solar production efficiency in Coquimbo:

• Marine salt exposure: Being a coastal location, salt-laden air can accumulate on solar panels, reducing their efficiency over time
• Dust and sand particles: Desert winds from inland areas can deposit fine particles on panel surfaces
• Coastal fog: Morning marine layer fog can temporarily reduce solar irradiance
• High UV exposure: Intense solar radiation may accelerate equipment degradation

Preventative Measures for Maximum Production

To ensure optimal energy production despite these environmental challenges, several protective measures should be implemented:

• Regular cleaning schedules: Establish frequent panel washing routines to remove salt deposits and dust accumulation
• Corrosion-resistant materials: Use marine-grade mounting hardware and electrical components designed for coastal environments
• Enhanced ventilation: Install panels with adequate spacing for air circulation to prevent overheating
• Quality protective coatings: Apply anti-reflective coatings that resist salt corrosion and UV degradation
• Monitoring systems: Deploy performance monitoring to quickly identify and address efficiency losses

Despite these environmental considerations, Coquimbo's strong year-round solar potential makes it an ideal location for solar installations when proper preventative measures are implemented during the design and maintenance phases.

Note: The Southern Sub Tropics extend from -23.5° latitude South down to -35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 115 locations across Chile. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Chile by location

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

Seasonal solar PV output for Latitude: -29.9533, Longitude: -71.3349 (Coquimbo, Chile), 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 26° North in Coquimbo, Chile

To maximize your solar PV system's energy output in Coquimbo, Chile (Lat/Long -29.9533, -71.3349) throughout the year, you should tilt your panels at an angle of 26° 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 Coquimbo, Chile

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 Coquimbo, Chile. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
14° North in Summer	35° North in Autumn	45° North in Winter	23° North 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 Coquimbo, Chile

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 Coquimbo, Chile.

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 Coquimbo, Chile

Topographical Features Around Coquimbo

The city of Coquimbo sits along Chile's central coast, positioned where the Pacific Ocean meets a landscape of dramatic contrasts. The immediate coastal area features relatively flat terrain that gradually rises inland toward the foothills of the Andes Mountains. This coastal plain extends several kilometers east from the shoreline before encountering more pronounced elevation changes. The region is characterized by rolling hills and gentle slopes that define much of the intermediate zone between the coast and the higher mountain ranges. These undulating landforms create a series of valleys and ridges that run roughly parallel to the coastline. The terrain becomes increasingly rugged as one moves further inland, with steeper gradients and more pronounced topographical variations marking the transition toward the Andean foothills. Several river valleys cut through the landscape, creating natural corridors of flatter terrain amid the surrounding hills. These valleys often contain the most fertile soils in the region and have historically been centers of agricultural activity. The overall elevation rises steadily from sea level at the coast to several hundred meters above sea level in the inland areas.

Climate and Environmental Conditions

The Coquimbo region experiences a semi-arid climate with minimal rainfall throughout most of the year. This dry climate contributes to sparse vegetation cover across much of the landscape, with desert-like conditions prevailing in many areas. The combination of low precipitation and abundant clear skies creates ideal atmospheric conditions for solar energy generation. Coastal fog occasionally affects areas immediately adjacent to the ocean, but this maritime influence diminishes rapidly with distance from the shore. The inland areas typically experience clearer atmospheric conditions with less moisture and reduced cloud cover compared to the immediate coastal zone.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations lie in the inland valleys and gently sloping plateaus that extend eastward from the coastal hills. These areas offer the ideal combination of relatively flat terrain, minimal vegetation, and excellent solar exposure conditions. The river valleys, while offering flat terrain, may present challenges due to occasional water flow and potentially more valuable agricultural uses. The intermediate zone between the immediate coast and the steeper Andean foothills presents particularly favorable conditions. This region typically features gentle slopes that can accommodate large solar arrays while providing natural drainage. The terrain is stable and generally free from the coastal fog that can reduce solar efficiency near the ocean. Areas with southern-facing slopes should generally be avoided for optimal solar collection, while north-facing gentle slopes can actually enhance solar collection efficiency. The numerous ridgelines and hilltops throughout the region may offer excellent solar exposure but could present construction challenges due to access difficulties and steeper gradients. The sparsely vegetated plateaus and broad valley floors located 10-30 kilometers inland from the coast represent the prime locations for solar development. These areas combine accessible terrain, minimal environmental constraints, and optimal atmospheric conditions for photovoltaic energy generation. The relatively stable geological conditions and low seismic activity in the immediate region also favor large-scale infrastructure development.

Chile solar PV Stats as a country

Chile ranks 22nd in the world for cumulative solar PV capacity, with 4,468 total MW's of solar PV installed. This means that 9.10% of Chile's total energy as a country comes from solar PV (that's 5th in the world). Each year Chile is generating 234 Watts from solar PV per capita (Chile ranks 21st in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Chile?

Yes, there are several incentives for businesses wanting to install solar energy in Chile. The Chilean government offers a range of financial incentives and tax credits for businesses that invest in renewable energy projects. These include grants, loans, and subsidies for the installation of solar panels. Additionally, businesses can benefit from net metering policies which allow them to sell excess electricity back to the grid at a premium rate. Finally, businesses may also be eligible for additional incentives such as reduced import duties on solar equipment or accelerated depreciation allowances on investments in renewable energy projects.

Do you have more up to date information than this on incentives towards solar PV projects in Chile? Please reach out to us and help us keep this information current. Thanks!

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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.