Solar PV Analysis of Juliaca, Peru
Juliaca, Puno, Peru, situated at latitude -15.4991 and longitude -70.1339, presents a promising location for solar energy generation. This tropical city experiences relatively consistent sunlight throughout the year, with seasonal variations primarily characterized by wet and dry periods rather than significant changes in daylight hours.
The solar potential in Juliaca is impressive, with average daily electricity output per kilowatt of installed solar capacity ranging from 6.14 kWh in autumn to 7.54 kWh in spring. This consistency across seasons is highly favorable for year-round solar energy production.
Seasonal Solar Performance
Spring emerges as the most productive season, yielding 7.54 kWh per day for each kilowatt of installed capacity. Winter follows closely with 6.53 kWh/day, then summer with 6.46 kWh/day, and autumn with 6.14 kWh/day. The relatively small variation between seasons indicates a stable and reliable solar resource throughout the year.
For fixed panel installations in Juliaca, Puno, the ideal tilt angle to maximize year-round solar production is 15 degrees facing North. This angle optimizes the panels' exposure to sunlight across all seasons, considering the city's latitude and the sun's path throughout the year.
Environmental Considerations
While Juliaca's location is generally favorable for solar energy production, there are some environmental factors to consider. The city's high altitude (approximately 3,825 meters above sea level) can lead to increased UV radiation, which can be beneficial for solar production but may also accelerate panel degradation over time.
Additionally, Juliaca experiences a rainy season from December to March, which could potentially reduce solar output during these months. To mitigate this, installations should include:
- Adequate drainage systems to prevent water accumulation on panels
- Slightly steeper tilt angles to facilitate self-cleaning during rainy periods
Dust accumulation can also be a concern in the drier months. Regular cleaning and maintenance schedules should be implemented to ensure optimal performance. Furthermore, the use of anti-soiling coatings on solar panels can help maintain efficiency by reducing dust adhesion.
Overall, Juliaca's location offers excellent potential for solar energy generation, with minimal seasonal fluctuations and manageable environmental challenges. With proper installation techniques and maintenance practices, solar PV systems in this area can provide a reliable and efficient source of renewable energy throughout the year.
Note: The Tropics are located between 23.5° North and -23.5° South of the equator.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 47 locations across Peru. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Peru by location
Solar output per kW of installed solar PV by season in Juliaca
Seasonal solar PV output for Latitude: -15.4991, Longitude: -70.1339 (Juliaca, Peru), 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 15° North in Juliaca, Peru
To maximize your solar PV system's energy output in Juliaca, Peru (Lat/Long -15.4991, -70.1339) throughout the year, you should tilt your panels at an angle of 15° 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 Juliaca, Peru
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 Juliaca, Peru. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 15° North tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 0° in Summer | 22° North in Autumn | 31° North in Winter | 9° 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 Juliaca, Peru
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 Juliaca, Peru.
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 Juliaca, Peru
The topography around Juliaca, Peru is characterized by high-altitude plateaus and rolling hills. Juliaca itself is situated on the Collao Plateau, which is part of the larger Altiplano region in the Andes Mountains. This area has an average elevation of about 3,800 meters (12,500 feet) above sea level, making it one of the highest major cities in the world.
The landscape surrounding Juliaca is generally flat to gently undulating, with some areas of more rugged terrain as you move away from the city. To the east, you'll find the imposing Cordillera Real mountain range, while to the west lies Lake Titicaca, the largest lake in South America. The region experiences a semi-arid climate with distinct wet and dry seasons.
When considering areas nearby that would be most suited to large-scale solar PV (photovoltaic) installations, several factors come into play. The high altitude and relatively clear skies of the Altiplano region make it an attractive location for solar energy production. Areas to the south and west of Juliaca, where the terrain is flatter and there's less urban development, could be particularly well-suited for solar farms.
The expansive plains between Juliaca and Puno, stretching towards Lake Titicaca, offer promising locations for solar PV projects. These areas benefit from consistent sunlight exposure and have fewer geographical obstacles that might cast shadows or impede construction. Additionally, the region between Juliaca and Ayaviri to the northwest presents another potential zone for solar development, as it features wide-open spaces with minimal vegetation and human settlement.
It's important to note that while the high-altitude environment provides excellent solar radiation, it also presents challenges such as extreme temperature variations and potential equipment stress due to the thin air. Any large-scale solar PV project in this region would need to account for these unique environmental factors in its design and implementation.
Peru solar PV Stats as a country
Peru ranks 62nd in the world for cumulative solar PV capacity, with 336 total MW's of solar PV installed. Each year Peru is generating 10 Watts from solar PV per capita (Peru ranks 74th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Peru?
Yes, there are several incentives for businesses wanting to install solar energy in Peru. The Peruvian government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy projects. These include grants, loans, and tax credits. Additionally, the government has established a Renewable Energy Promotion Fund (FIPER) which provides subsidies to companies investing in renewable energy projects. Furthermore, the Ministry of Energy and Mines has created an incentive program called “Solar Peru” which provides additional funding for solar projects. Finally, the National Photovoltaic Program (PNV) provides technical assistance and training to businesses interested in installing solar systems.
Do you have more up to date information than this on incentives towards solar PV projects in Peru? Please reach out to us and help us keep this information current. Thanks!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 19th of August 2024
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.
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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.
