Tocopilla, Antofagasta, Chile represents an exceptionally favorable location for year-round solar photovoltaic energy generation. Located in the Atacama Desert region along Chile's northern coast, this area benefits from some of the world's most consistent and intense solar radiation throughout the year.

Seasonal Solar Performance

The solar energy output at Tocopilla shows strong performance across all seasons, though with notable seasonal variation. Summer delivers the highest production at 8.73 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows as the second-best performing season with 6.89 kWh per day per kW, while autumn provides solid output at 6.05 kWh per day per kW. Winter represents the lowest production period at 3.75 kWh per day per kW of installed solar capacity, though this figure still indicates reasonable solar generation potential even during the least favorable months. The substantial difference between summer and winter output suggests that energy storage or grid-tied systems would be beneficial for maintaining consistent power supply year-round. For fixed panel installations at this location, the optimal tilt angle to maximize total annual solar production is 18 degrees facing north. This angle has been calculated by analyzing daily solar elevation angles throughout the year and weighting them according to photovoltaic potential based on solar irradiance data.

Environmental and Weather Challenges

Despite Tocopilla's excellent solar potential, several environmental factors could impact solar panel performance and require specific preventative measures during installation and maintenance. Dust and Sand Accumulation: The Atacama Desert environment means solar panels will face significant dust and sand buildup, which can substantially reduce energy output. Regular cleaning schedules are essential, and installing panels with easy access for maintenance crews is crucial. Automated cleaning systems or dust-resistant panel coatings can help maintain optimal performance between manual cleanings. Salt Corrosion: Tocopilla's coastal location exposes solar installations to salt-laden air, which can corrode metal components and electrical connections over time. Using marine-grade materials, stainless steel mounting systems, and corrosion-resistant electrical components will extend system lifespan. Regular inspection and replacement of seals and gaskets is also important. High UV Exposure: The intense solar radiation that makes this location excellent for energy generation also accelerates the degradation of plastic components, wiring insulation, and panel backing materials. Selecting UV-resistant materials and providing adequate ventilation to prevent overheating will help maintain system efficiency over the long term. Seismic Activity: Chile's location along active tectonic zones means solar installations must be designed to withstand earthquake forces. Proper structural engineering, flexible mounting systems, and seismic-rated electrical connections are essential safety and performance considerations. Implementing these preventative measures during installation will help ensure that Tocopilla's exceptional solar resource can be effectively harnessed for reliable, long-term energy production.

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 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 Tocopilla

Seasonal solar PV output for Latitude: -22.0891, Longitude: -70.2006 (Tocopilla, 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 18° North in Tocopilla, Chile

To maximize your solar PV system's energy output in Tocopilla, Chile (Lat/Long -22.0891, -70.2006) throughout the year, you should tilt your panels at an angle of 18° 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 Tocopilla, 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 Tocopilla, Chile. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 18° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
6° North in Summer	27° North in Autumn	37° North in Winter	15° 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 Tocopilla, 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 Tocopilla, 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 Tocopilla, Chile

Topographical Features of Tocopilla

Tocopilla sits dramatically positioned along Chile's northern Pacific coastline, where the Atacama Desert meets the ocean in one of the world's most arid regions. The city occupies a narrow coastal plain that extends only a few kilometers inland before giving way to steep, rocky hills and mountainous terrain. This coastal strip represents a relatively flat zone that provides the foundation for the port city, but the landscape quickly transforms into challenging topography as elevation increases. The immediate surroundings are characterized by barren, desert hills that rise abruptly from the coastal plain. These formations are part of the Coastal Cordillera, a mountain range that runs parallel to the Pacific Ocean throughout much of Chile. The terrain becomes increasingly rugged moving eastward, with deep ravines, steep slopes, and rocky outcroppings dominating the landscape. The absence of vegetation is striking, as the extreme aridity of the Atacama Desert creates an almost lunar-like environment of exposed rock and sand.

Elevation and Terrain Challenges

The elevation around Tocopilla varies dramatically over short distances. While the coastal area remains near sea level, the surrounding hills and mountains can reach several hundred meters in elevation within just a few kilometers of the coast. This rapid elevation change creates a series of ridges, valleys, and slopes that present both opportunities and challenges for large-scale development projects. The geological composition consists primarily of sedimentary and volcanic rocks, with extensive areas of exposed bedrock. The lack of soil cover and vegetation means that the underlying rock formations are clearly visible, creating a landscape of browns, grays, and reddish hues. Wind erosion has sculpted many of these formations over millennia, creating distinctive shapes and patterns across the terrain.

Optimal Areas for Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be the relatively flat areas on elevated plateaus and gentle slopes found inland from the immediate coastal zone. These areas offer the dual advantages of reasonably level terrain for installation while avoiding the steepest mountainous regions. The elevated plateaus, typically found between five and fifteen kilometers inland from Tocopilla, provide expansive flat or gently undulating surfaces that would minimize grading and construction costs. The coastal plain itself, while flat, presents limitations due to existing urban development, infrastructure, and the potential for coastal fog and marine layer effects. Moving inland, the terrain becomes more favorable as it transitions through a zone of moderate hills before reaching the broader, more stable plateau areas. These inland locations benefit from greater distance from maritime influences while maintaining accessibility for construction and maintenance operations. Areas to the northeast and southeast of Tocopilla appear particularly promising, where the terrain levels out into broader valleys and elevated plains. These locations offer the necessary space for utility-scale installations while remaining accessible via existing road networks. The stable geological conditions and minimal vegetation removal requirements make these areas attractive from both engineering and environmental perspectives. The key consideration for site selection involves balancing terrain suitability with practical factors such as proximity to existing electrical infrastructure and transportation access. The areas that combine relatively flat topography with reasonable access to the coastal highway system and existing power transmission lines would represent the most viable options for large-scale solar development in the region.

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.