Pudahuel, Santiago Metropolitan, Chile presents a moderately favorable location for year-round solar photovoltaic energy generation, though with significant seasonal variations that potential solar installers should carefully consider.

Seasonal Solar Performance

The solar energy output at this Southern Sub Tropical location varies dramatically throughout the year. Summer delivers the strongest performance at 9.40kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring follows as the second-best season with 7.73kWh per day per kW, providing solid energy production during this period. However, the location faces considerable challenges during cooler months. Autumn drops to 5.22kWh per day per kW, while winter plummets to just 3.26kWh per day per kW - representing less than 35% of summer production levels. This dramatic seasonal swing means solar installations will produce roughly three times more energy in summer compared to winter.

Optimal Panel Configuration

For fixed panel installations at this location, the ideal tilt angle to maximize total year-round solar production is 28 degrees facing North. This angle has been calculated by analyzing daily solar elevation angles, determining optimal panel positioning, and weighting these calculations using NASA solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Considerations

Several local factors in Pudahuel could potentially impact solar energy production and require preventative measures during installation:

• Dust and particulate matter: The location's proximity to Santiago and potential desert dust can accumulate on panels, reducing efficiency by 10-25% if left uncleaned
• Seismic activity: Chile's location along active fault lines requires earthquake-resistant mounting systems and proper structural engineering
• Temperature fluctuations: Significant seasonal temperature variations can cause thermal expansion and contraction, potentially affecting panel connections and mounting hardware
• Occasional volcanic ash: Regional volcanic activity can deposit ash on panels, dramatically reducing output until cleaned

Preventative Installation Measures

To maximize energy production despite these challenges, several installation strategies prove beneficial. Installing panels with adequate spacing allows for natural wind cleaning and easier manual maintenance access. Using high-quality, corrosion-resistant mounting hardware helps withstand seismic stress and temperature variations. Implementing a regular cleaning schedule becomes crucial, particularly during dusty periods or after volcanic activity. Installing monitoring systems helps identify performance drops quickly, allowing for prompt maintenance intervention. Additionally, choosing panels and inverters rated for the local temperature range ensures optimal performance across seasonal variations. The location's strong summer and spring performance makes Pudahuel reasonably suitable for solar installations, provided proper attention is given to the significant winter production decline and local environmental factors during system design and maintenance planning.

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 Pudahuel

Seasonal solar PV output for Latitude: -33.424, Longitude: -70.8549 (Pudahuel, 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 Pudahuel, Chile

To maximize your solar PV system's energy output in Pudahuel, Chile (Lat/Long -33.424, -70.8549) 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 Pudahuel, 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 Pudahuel, 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	49° North in Winter	26° 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 Pudahuel, 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 Pudahuel, 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 Pudahuel, Chile

Topographical Features of Pudahuel

Pudahuel sits in the western portion of the Santiago Metropolitan Region, positioned within the broad Central Valley of Chile. This area represents part of the expansive depression that runs between the Andes Mountains to the east and the Chilean Coastal Range to the west. The immediate terrain around Pudahuel is characterized by relatively flat to gently rolling plains, with elevations typically ranging from 400 to 600 meters above sea level.

The topography gradually rises as one moves eastward toward the foothills of the Andes, where the terrain becomes increasingly steep and mountainous. To the west, the landscape transitions into the lower hills and valleys of the Coastal Range. The Maipo River system has historically shaped much of this central valley landscape, creating fertile alluvial deposits and relatively level terrain that has made the region suitable for agriculture and urban development.

Regional Landscape Context

The broader Santiago Basin encompasses Pudahuel within a natural bowl-like formation created by the surrounding mountain ranges. This geographical setting creates distinct microclimatic zones, with the central valley areas experiencing more stable weather patterns compared to the mountainous regions. The terrain immediately surrounding Pudahuel includes a mix of urban development, agricultural lands, and some industrial areas, reflecting the commune's position as part of greater Santiago's western expansion.

Moving away from the urban core, the landscape opens up into larger agricultural plots and undeveloped areas. The relatively gentle topography extends for considerable distances in multiple directions, particularly toward the southwest and northwest, where the terrain remains fairly level before encountering the more pronounced hills of the Coastal Range.

Optimal Areas for Large-Scale Solar Development

The most promising locations for large-scale solar photovoltaic installations would be found in the flatter agricultural and undeveloped areas extending west and southwest of Pudahuel's urban center. These areas offer several advantages including minimal slope variations that would complicate panel installation and maintenance, reduced shading from topographical features, and typically lower land costs compared to more developed zones.

The plains stretching toward Melipilla and the areas between Pudahuel and the coastal hills present particularly suitable conditions. These locations maintain the favorable flat to gently rolling character while being sufficiently removed from dense urban development. The consistent elevation and open character of these areas would allow for optimal panel orientation and spacing without significant terrain-related constraints.

Areas closer to the Andean foothills would be less suitable due to increasing slopes, potential shading from nearby hills, and more complex terrain that would increase installation costs. Similarly, locations within the more densely developed portions of the Santiago metropolitan area would face space constraints and higher land acquisition costs that could impact project viability.

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!

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.