Solar Energy Potential in San Felipe, Región de Valparaíso, Chile

San Felipe, Región de Valparaíso, Chile, located in the Southern Sub Tropics at latitude -32.747 and longitude -70.7301, offers promising conditions for solar photovoltaic (PV) energy generation, though with significant seasonal variations. The solar energy production potential varies substantially throughout the year. Summer months are exceptionally productive, generating approximately 9.62 kWh per day for each kilowatt of installed solar capacity. Spring follows as the second most productive season with 7.98 kWh/day. Production decreases considerably in autumn to 5.54 kWh/day, while winter represents the lowest output period with only 3.51 kWh/day per kilowatt installed. This seasonal pattern indicates that San Felipe experiences a substantial difference between summer and winter solar production - with summer yielding nearly three times the energy of winter months. This variation is typical of locations in the mid-latitudes of the Southern Hemisphere, where winter sun angles are lower and daylight hours are reduced.

Optimal Panel Installation

For fixed solar panel installations in San Felipe, Región de Valparaíso, the ideal tilt angle to maximize year-round energy production is 28 degrees facing North. This specific angle optimizes the annual solar capture by balancing seasonal variations in sun position throughout the year.

Environmental and Weather Considerations

Several environmental factors may impact solar production in San Felipe:

• Dust and particulate matter: The semi-arid climate of central Chile can lead to dust accumulation on panels, potentially reducing efficiency by 5-15% if not regularly cleaned.
• Temperature extremes: High summer temperatures can slightly reduce PV panel efficiency, as most panels experience decreased performance above 25°C.
• Occasional cloud cover: While the region generally enjoys clear skies, seasonal weather patterns can introduce periodic cloudy periods, particularly in winter months.

To mitigate these challenges, solar installations should incorporate:

• Regular cleaning schedules or self-cleaning panel technologies to address dust accumulation
• Proper panel ventilation and mounting designs that allow airflow beneath panels to reduce temperature-related efficiency losses
• System sizing that accounts for the significant seasonal production differences, potentially with battery storage to balance the summer surplus with winter deficits

Overall, San Felipe presents favorable conditions for solar energy production, particularly from spring through autumn. The substantial summer production can offset the reduced winter output, making year-round solar generation viable with proper system design and maintenance.

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 San Felipe

Seasonal solar PV output for Latitude: -32.747, Longitude: -70.7301 (San Felipe, 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 San Felipe, Chile

To maximize your solar PV system's energy output in San Felipe, Chile (Lat/Long -32.747, -70.7301) 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 San Felipe, 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 San Felipe, 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 San Felipe, 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 San Felipe, 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 San Felipe, Chile

The topography surrounding San Felipe, Chile is characterized by dramatic and varied terrain. Located in the Aconcagua Valley at the foothills of the Andes Mountains, San Felipe sits at an elevation of approximately 650 meters above sea level. The landscape is dominated by the imposing Andean mountain range to the east, with peaks that rise steeply to elevations exceeding 4,000 meters, including the nearby Aconcagua, which at 6,960 meters is the highest mountain in the Americas. The valley itself is relatively flat, carved out by the Aconcagua River which flows through the region. This river valley creates a natural corridor running east-west, flanked by mountains on both sides. The northern and southern boundaries of the valley are defined by mountain ranges of moderate elevation, creating a semi-enclosed basin that experiences a Mediterranean climate. To the west of San Felipe, the terrain gradually descends toward the coastal regions of Chile, with rolling hills and smaller valleys characterizing the landscape. The transition from the Andean foothills to these lower elevations creates a diverse topographical profile with varying slopes and aspects.

Optimal Areas for Solar PV Development

The most suitable areas for large-scale solar photovoltaic (PV) development near San Felipe would be the relatively flat portions of the Aconcagua Valley, particularly to the west and northwest of the city. These areas benefit from several advantageous characteristics: The flat valley floor provides extensive areas with minimal slope, reducing the costs associated with land preparation and maximizing the efficiency of panel placement. These flat expanses allow for optimal panel orientation without requiring significant terrain modification. The western portions of the valley receive abundant solar radiation throughout the year due to the region's Mediterranean climate. The valley's east-west orientation means that south-facing slopes (in the Southern Hemisphere) receive consistent sunlight exposure. Areas slightly elevated from the valley floor, particularly on the gentle slopes of the lower foothills, may offer advantages in terms of reduced dust accumulation and decreased risk of flooding, while still maintaining favorable topographical characteristics for solar installation. The northern sides of the valley, with their south-facing aspects, would generally be less ideal for solar PV installation in the Southern Hemisphere. Similarly, the steeper eastern slopes of the Andes would present significant engineering challenges and higher costs for large-scale installations. Areas to avoid would include the irrigated agricultural lands within the valley, which represent valuable productive farmland, and the steeper mountain slopes where installation would be technically challenging and environmentally disruptive. The riverbed and flood-prone areas adjacent to the Aconcagua River should also be excluded from consideration. The region's relatively stable geological conditions, compared to other parts of Chile, provide an additional advantage for solar infrastructure development, though seismic considerations must still be incorporated into any installation design.

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.