Los Andes, Región de Valparaíso, Chile, situated in the Southern Sub Tropics at coordinates -32.8319, -70.5866, offers variable conditions for solar PV energy generation throughout the year. The location experiences significant seasonal differences in solar electricity production that potential solar installers should consider.

Seasonal Solar Production

Solar panels in Los Andes perform exceptionally well during summer months, generating an impressive 9.62kWh per day for each kilowatt of installed capacity. Spring follows as the second most productive season with 7.98kWh/day per kW installed. Production decreases considerably during autumn to 5.54kWh/day, while winter sees the lowest output at just 3.51kWh/day per kW installed.

This pattern creates a substantial difference between summer and winter production - with summer generating nearly three times the electricity of winter months. The location clearly favors solar installations that can capitalize on the high summer and spring production periods.

Optimal Panel Installation

For fixed solar panel installations in Los Andes, Región de Valparaíso, the ideal tilt angle to maximize year-round electricity production is 28 degrees facing North. This specific angle optimizes the annual solar harvest by balancing seasonal variations and accounting for the Earth's elliptical orbit.

Environmental Considerations

Several environmental factors could potentially impact solar production in Los Andes:

• Dust and particulate matter from the nearby Andes mountains may accumulate on panels, reducing efficiency if not regularly cleaned
• Seasonal temperature variations can affect panel efficiency, with very high summer temperatures potentially reducing performance slightly
• Winter snowfall, though infrequent at this latitude, could temporarily cover panels

To mitigate these challenges, solar installations should incorporate regular cleaning schedules, proper ventilation behind panels to reduce temperature impacts, and sufficient tilt to help shed any occasional snow. Additionally, using high-quality panels with good temperature coefficients will help maintain production during hot summer days.

The location's proximity to the Andes mountains might also create localized shading during certain times of day, particularly in winter when the sun angle is lower. A thorough site assessment addressing potential mountain shadows would be advisable before installation.

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 Los Andes

Seasonal solar PV output for Latitude: -32.8319, Longitude: -70.5866 (Los Andes, 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 28° North in Los Andes, Chile

To maximize your solar PV system's energy output in Los Andes, Chile (Lat/Long -32.8319, -70.5866) throughout the year, you should tilt your panels at an angle of 28° 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 Los Andes, 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 Los Andes, Chile. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 28° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
17° North in Summer	38° North in Autumn	48° North in Winter	25° 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 Los Andes, 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 Los Andes, 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 Los Andes, Chile

The topography surrounding Los Andes, Chile, is dominated by the dramatic landscape of the Andes Mountains, from which the city derives its name. Located in the Valparaíso Region at an elevation of approximately 820 meters (2,690 feet) above sea level, Los Andes sits in a valley nestled among towering mountain peaks. The terrain is characterized by steep slopes, deep valleys, and high mountain ridges that create a complex and varied landscape. To the east of Los Andes, the terrain rises dramatically toward the Argentina-Chile border, where the Andes reach their most impressive heights in this region. This area includes notable peaks such as Aconcagua (the highest mountain in the Americas at 6,960 meters), though it lies across the border in Argentina. The immediate vicinity features numerous peaks exceeding 5,000 meters in elevation, creating a rugged alpine environment.

Valley Systems and Rivers

Los Andes sits within the Aconcagua Valley, which is formed by the Aconcagua River flowing westward from the mountains toward the Pacific Ocean. This valley creates a relatively flat corridor amid the surrounding mountainous terrain. The valley floor contains alluvial deposits and is more gently sloped compared to the surrounding mountains, making it valuable for agriculture and human settlement. The river systems in this region have carved deep valleys through the mountains over geological time, creating natural corridors that have historically facilitated transportation routes between Chile and Argentina, including the important international highway that passes near Los Andes.

Solar PV Potential Areas

For large-scale solar photovoltaic (PV) installations, several topographical factors must be considered, including slope angle, aspect (direction the land faces), elevation, and accessibility. In the Los Andes region, the most suitable areas for solar PV development would include: The valley floors, particularly in the wider sections of the Aconcagua Valley to the west of Los Andes, offer relatively flat terrain that would minimize site preparation costs. These areas also benefit from existing infrastructure including roads and proximity to transmission lines, which reduces development costs for solar projects. South of Los Andes, the terrain begins to transition toward the Central Valley of Chile, which features more extensive flat or gently rolling terrain that would be excellent for solar installations. This area receives abundant solar radiation and has fewer topographical constraints than the mountainous areas. The lower elevation foothills and terraces along the valley edges offer potential for solar development, particularly on south-facing slopes (in the Southern Hemisphere, north-facing slopes receive more direct sunlight). These areas may require more site preparation but can still be economically viable for solar development.

Topographical Challenges

Despite the significant solar resource in this region, several topographical factors present challenges for large-scale solar development near Los Andes. The steep mountain slopes that dominate much of the landscape are generally unsuitable for large solar arrays due to construction difficulties, potential for erosion, and shadowing effects from adjacent ridges. The narrow sections of valleys may experience reduced direct sunlight due to shadowing from surrounding mountains, particularly in winter months when the sun angle is lower. This effect, known as "valley shadowing," can significantly reduce the energy production of solar installations in certain locations. Additionally, the region experiences seasonal snowfall at higher elevations, which would impact solar production during winter months in installations located above certain elevations. The optimal solar PV locations would therefore be at moderate elevations where snow accumulation is minimal. In conclusion, while the Los Andes region presents certain topographical challenges for solar development due to its mountainous nature, the valley floors, transitional areas toward the Central Valley, and selected foothill locations offer promising potential for large-scale solar PV installations that could harness the region's excellent solar resource.

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.