Solar Energy Potential in Villa Alemana, Región de Valparaíso, Chile
Villa Alemana, Región de Valparaíso, Chile, located in the Southern Sub Tropics at coordinates -33.045, -71.368, offers generally favorable conditions for solar PV energy generation, though with significant seasonal variations. The location demonstrates strong solar potential during the summer months (December to February in the Southern Hemisphere), producing an impressive 7.86kWh per day for each kilowatt of installed capacity. Spring (September to November) follows closely behind with 7.18kWh/day per kW installed. However, energy production drops considerably during autumn (March to May) to 4.49kWh/day, and reaches its lowest point in winter (June to August) with only 3.15kWh/day per kW of solar capacity. This winter reduction represents about 60% less energy generation compared to summer peaks. For maximum year-round energy production at this location, fixed solar panels should be installed at a tilt angle of 28 degrees facing North. This specific angle has been calculated to optimize annual solar energy capture based on Villa Alemana's particular latitude and local solar conditions.Environmental Considerations
Several environmental factors could potentially impact solar production in Villa Alemana. The region occasionally experiences coastal fog that can roll inland from the nearby Pacific Ocean, temporarily reducing solar irradiance. This is particularly common during morning hours in spring and summer months. Villa Alemana's proximity to urban centers like Valparaíso and Santiago means air pollution can sometimes be a factor, with particulate matter potentially reducing solar efficiency. This effect is most pronounced during winter months when air quality typically deteriorates due to increased use of wood-burning stoves and temperature inversions that trap pollutants.Preventative Measures
To maximize solar energy production in Villa Alemana, Región de Valparaíso, consider these preventative measures:- Install panels slightly higher than the 28-degree optimal tilt during winter months if seasonal adjustments are possible, to compensate for the significant winter production drop
- Implement regular cleaning protocols to address dust accumulation, which is common in the region's dry summers
- Consider premium anti-reflective coatings on panels to improve performance during diffuse light conditions when coastal fog is present
- Install monitoring systems to track performance and quickly identify any unexpected drops in production
- For new installations, consider east-west facing panel arrangements (rather than strictly north) to better capture morning and afternoon sun when fog patterns are less prevalent
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 Villa Alemana
Seasonal solar PV output for Latitude: -33.045, Longitude: -71.368 (Villa Alemana, 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 Villa Alemana, Chile
To maximize your solar PV system's energy output in Villa Alemana, Chile (Lat/Long -33.045, -71.368) 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 Villa Alemana, 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 Villa Alemana, 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 | 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 Villa Alemana, 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 Villa Alemana, Chile.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - 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 Villa Alemana, Chile
The topography surrounding Villa Alemana, Chile presents a diverse landscape shaped by significant geographical features. Situated in the Valparaíso Region approximately 33 degrees south of the equator, Villa Alemana lies within a transitional zone between coastal plains and the foothills of the Andes Mountains. The terrain is characterized by rolling hills, valleys, and gradually rising elevations as one moves eastward from the Pacific coast.
Coastal Plains and Interior Valleys
Villa Alemana itself sits in what is known as the Central Valley (Valle Central) of Chile, at an elevation of approximately 130-160 meters above sea level. The immediate surroundings feature undulating terrain with gentle slopes and small hills. To the west, the landscape gradually descends toward the coastal plains near Viña del Mar and Valparaíso, about 20 kilometers away. These coastal areas have more level terrain before meeting the Pacific Ocean.Mountain Influences
The eastern horizon is dominated by the presence of the Coastal Range (Cordillera de la Costa), a mountain system that runs parallel to the Pacific coastline. These mountains, while not as imposing as the Andes further east, create a significant topographical barrier that influences local climate patterns. Beyond this range lie higher elevations that eventually transition into the foothills of the Andes Mountains proper, with peaks rising dramatically to several thousand meters.Valleys and Watersheds
The area features several river valleys and watersheds that have carved natural corridors through the terrain. These include the Aconcagua River valley to the north and smaller stream systems that flow from the mountains toward the coast. These valleys create natural depressions in the landscape and often contain more fertile soils due to alluvial deposits.Solar PV Potential Areas
For large-scale solar photovoltaic installations, several nearby areas offer promising conditions based on topographical considerations: The gently sloping terrain east of Villa Alemana, extending toward the Coastal Range, provides favorable sites for solar development. These areas combine relatively flat sections with slight south-facing slopes (in the Southern Hemisphere, north-facing slopes receive more direct sunlight, but gentle south-facing areas can still be viable). The elevation gain in these areas also typically places them above morning fog patterns that sometimes affect coastal regions. The broader valleys between the coastal mountains, particularly those with open exposures away from mountain shadows, represent prime locations for solar installations. These areas offer the advantage of relatively level ground for easier construction while maintaining good solar exposure throughout the day. Elevated plateaus found in the transitional zones between the Central Valley and the Coastal Range present another promising option. These locations often feature stable ground conditions and reduced vegetation coverage, minimizing site preparation requirements. Their elevation also typically places them above areas prone to morning fog or low cloud cover. The northern slopes of hills throughout the region generally receive more consistent solar radiation throughout the year due to Chile's Southern Hemisphere location. These areas, while requiring some terracing or specialized mounting systems, can maximize energy capture by optimizing the angle of solar panels relative to the sun's path. Areas to avoid include the steeper western faces of the Coastal Range, which may experience afternoon shadowing effects, and the lowest portions of river valleys, which can be subject to increased humidity, potential flooding, and morning fog persistence.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 29th of May 2025
Last Updated: Monday 21st of July 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.
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.




