Ancud, Los Lagos Region, Chile presents significant challenges for year-round solar energy generation, with highly variable seasonal output that makes it far from ideal for consistent solar PV production.

Seasonal Solar Performance

The solar energy output at this Southern Temperate Zone location varies dramatically throughout the year. Summer delivers the strongest performance at 8.07 kWh per day per kW of installed capacity, making it by far the most productive season for solar generation. Spring provides moderate output at 5.50 kWh per day, while autumn drops considerably to 3.39 kWh per day. Winter presents the most challenging conditions, producing only 1.88 kWh per day per kW - less than a quarter of summer production. This extreme seasonal variation means solar installations would generate abundant energy during warmer months but struggle significantly during winter when energy demand is typically highest for heating.

Optimal Installation Setup

For maximum year-round energy production at Ancud, Los Lagos Region, solar panels should be installed at a fixed tilt angle of 35 degrees facing north. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting for the solar irradiance potential at this specific latitude.

Environmental and Weather Challenges

Several local factors at Ancud can significantly impact solar energy production:

• Frequent cloud cover and overcast conditions, particularly during autumn and winter months
• High humidity and marine moisture from the coastal Pacific location
• Salt spray and corrosive sea air that can damage solar equipment
• Strong winds and storms common to this southern Chilean coastal region

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies should be implemented:

• Use marine-grade solar panels and mounting systems specifically designed to resist salt corrosion
• Install panels with adequate spacing for natural rain washing and easy manual cleaning
• Employ robust mounting systems engineered for high wind loads
• Consider battery storage systems to capture excess summer production for use during low-output winter months
• Regular maintenance schedules for cleaning panels and checking connections in the corrosive marine environment

The coastal location requires particular attention to equipment durability, as the combination of salt air, moisture, and variable weather conditions can quickly degrade poorly protected solar installations.

Note: The Southern Temperate Zone extends from -35° latitude South down to -66.5° 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 Ancud

Seasonal solar PV output for Latitude: -41.8664, Longitude: -73.8155 (Ancud, 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 35° North in Ancud, Chile

To maximize your solar PV system's energy output in Ancud, Chile (Lat/Long -41.8664, -73.8155) throughout the year, you should tilt your panels at an angle of 35° 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 Ancud, 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 Ancud, Chile. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 35° North tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
26° North in Summer	45° North in Autumn	57° North in Winter	34° 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 Ancud, 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 Ancud, 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 Ancud, Chile

Topographical Features Around Ancud

Ancud sits on the northern tip of Chiloé Island in southern Chile, positioned along the shores of the Ancud Gulf. The city occupies a relatively flat coastal plain that extends inland for several kilometers before encountering the island's characteristic rolling hills. The immediate urban area lies at low elevation, with gentle slopes rising gradually from the waterfront toward the interior.

The broader landscape of northern Chiloé Island features a series of undulating hills and valleys that rarely exceed 400 meters in elevation. These hills are part of the Coastal Range system, which has been heavily modified by glacial activity during past ice ages. The terrain is characterized by rounded summits, broad valleys, and numerous small streams that drain toward both the eastern and western coasts of the island.

Dense temperate rainforest covers much of the natural landscape, though extensive areas have been cleared for agriculture and pasture over the centuries. The region experiences frequent cloud cover and precipitation due to its maritime climate, with moisture-laden air masses regularly moving inland from the Pacific Ocean. The topography creates localized weather patterns, with some areas receiving more direct exposure to prevailing winds and weather systems than others.

Optimal Locations for Large-Scale Solar Development

The most promising areas for large-scale solar photovoltaic installations around Ancud would be the cleared agricultural lands and pastures located on the gently sloping hills northeast and southeast of the city. These areas offer several advantages including relatively level terrain that would minimize grading requirements, existing access roads for construction and maintenance, and reduced environmental impact since the land has already been modified from its natural state.

The coastal plains extending eastward from Ancud toward the center of the island present another viable option for solar development. These areas feature minimal slope variations and would allow for efficient panel arrangements while maintaining good access to existing infrastructure. The cleared farmland in this region has been used primarily for cattle grazing and potato cultivation, making it potentially suitable for dual-use agricultural and solar applications.

Areas with southern exposure on the moderate slopes rising inland from the coast would be particularly well-suited for solar installations, as they would maximize exposure to available sunlight throughout the day. The cleared hilltops and upper slopes northeast of the city center offer good potential sites, provided that access roads can be established or improved to accommodate the transportation of equipment and materials.

Locations closer to the coastline should generally be avoided due to increased exposure to salt air and moisture, which can accelerate corrosion of solar equipment. Similarly, areas that remain heavily forested would require extensive clearing that could face environmental restrictions and would significantly increase project costs. The numerous small valleys and drainage areas scattered throughout the region would also be less suitable due to potential flooding risks and the likelihood of increased cloud formation and fog accumulation.

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.