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Flag of MexicoSolar PV Analysis of San Ildefonso, Mexico

Graph of hourly avg kWh electricity output per kW of Solar PV installed in San Ildefonso, Mexico (by season)

San Ildefonso, Hidalgo, Mexico, located at 20.0031° N, 99.3738° W, offers a favorable environment for solar energy generation throughout the year. This tropical location benefits from consistent sunlight, with seasons primarily characterized by wet and dry periods rather than significant temperature variations.

Seasonal Solar Performance

The solar energy output at San Ildefonso demonstrates relatively stable performance across all seasons, with some notable variations: Spring stands out as the most productive season, generating an impressive 7.43 kWh per day for each kilowatt of installed solar capacity. This peak performance coincides with the region's dry season, typically featuring clear skies and abundant sunshine. Summer and winter show similar outputs, producing 6.18 kWh/day and 5.74 kWh/day, respectively. The slightly lower summer output may be attributed to increased cloud cover during the rainy season. Autumn experiences the lowest output at 5.60 kWh/day, likely due to a combination of shorter days and potential cloud cover as the region transitions from the wet to dry season.

Optimal Panel Positioning

For fixed solar panel installations in San Ildefonso, Hidalgo, the ideal tilt angle to maximize year-round energy production is 19 degrees facing south. This angle takes into account the location's latitude and seasonal variations in sun position, ensuring optimal sunlight capture throughout the year.

Environmental Considerations

While San Ildefonso generally offers favorable conditions for solar energy production, there are a few environmental factors to consider: 1. Dust accumulation: The region's dry seasons can lead to increased dust in the air, potentially settling on solar panels and reducing efficiency. 2. Heavy rainfall: During the wet season, intense rain may temporarily reduce solar output. To mitigate these issues, consider implementing the following measures: - Regular panel cleaning to remove dust buildup - Installing panels at the recommended 19-degree tilt to facilitate natural cleaning during rainfall - Using high-quality, weather-resistant solar equipment designed to withstand tropical conditions Overall, San Ildefonso presents an excellent location for year-round solar energy generation, with consistently high output across all seasons and minimal environmental challenges.

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 358 locations across Mexico. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in Mexico by location

Solar output per kW of installed solar PV by season in San Ildefonso

Seasonal solar PV output for Latitude: 20.0031, Longitude: -99.3738 (San Ildefonso, Mexico), 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:

Summer
Average 6.18kWh/day in Summer.
Autumn
Average 5.60kWh/day in Autumn.
Winter
Average 5.74kWh/day in Winter.
Spring
Average 7.43kWh/day in Spring.

 

Ideally tilt fixed solar panels 19° South in San Ildefonso, Mexico

To maximize your solar PV system's energy output in San Ildefonso, Mexico (Lat/Long 20.0031, -99.3738) throughout the year, you should tilt your panels at an angle of 19° South 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.

The sun
At Latitude: 20.0031, Longitude: -99.3738, the ideal angle to tilt panels is 19° South

Seasonally adjusted solar panel tilt angles for San Ildefonso, Mexico

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 Ildefonso, Mexico. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 19° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
4° South in Summer 26° South in Autumn 35° South in Winter 13° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in San Ildefonso, Mexico as follows: In Summer, set the angle of your panels to 4° facing South. In Autumn, tilt panels to 26° facing South for maximum generation. During Winter, adjust your solar panels to a 35° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 13° angle facing South to capture the most solar energy in San Ildefonso, Mexico.

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 Ildefonso, Mexico

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 Ildefonso, Mexico.

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.






Please enter information above to calculate panel spacing.

Topography for solar PV around San Ildefonso, Mexico

The area around San Ildefonso, Mexico, located at coordinates 20.0031 latitude and -99.3738 longitude, is characterized by a diverse and rugged topography. This region is part of the central Mexican plateau, known for its varied landscape that includes both flat areas and hilly terrain.

San Ildefonso itself is situated in a relatively flat area, but it is surrounded by rolling hills and small mountains. To the east and northeast, the land gradually rises into more elevated terrain, with some peaks reaching heights of several hundred meters above the surrounding landscape. The western and southwestern parts of the region tend to be flatter, with occasional gentle slopes and shallow valleys.

The area experiences a semi-arid climate, which means it receives limited rainfall throughout the year. This climate, combined with the topography, has resulted in a landscape that is predominantly covered with scrubland vegetation, interspersed with areas of grassland and sparse forest cover on the higher elevations.

Suitable Areas for Large-Scale Solar PV

When considering locations for large-scale solar photovoltaic (PV) installations near San Ildefonso, the most suitable areas would be those that meet the following criteria:

  1. Flat or gently sloping terrain to minimize installation costs and maximize sun exposure
  2. Minimal shading from surrounding hills or mountains
  3. Good road access for construction and maintenance
  4. Proximity to existing electrical infrastructure

Based on these factors, the most promising areas for large-scale solar PV development would likely be found to the west and southwest of San Ildefonso. These regions tend to have flatter terrain, which is ideal for solar panel installation. The relatively open landscape in these directions would also minimize shading issues, allowing for optimal sun exposure throughout the day.

Additionally, areas to the immediate south of San Ildefonso might also be suitable, as long as care is taken to avoid any significant hills or elevated terrain that could cast shadows on the panels. It's worth noting that site-specific surveys and detailed topographic analyses would be necessary to determine the exact suitability of any particular location for a large-scale solar PV installation.

Mexico solar PV Stats as a country

Mexico ranks 18th in the world for cumulative solar PV capacity, with 7,040 total MW's of solar PV installed. This means that 3.20% of Mexico's total energy as a country comes from solar PV (that's 28th in the world). Each year Mexico is generating 55 Watts from solar PV per capita (Mexico ranks 50th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in Mexico?

Yes, there are several incentives for businesses wanting to install solar energy in Mexico. The Mexican government offers a range of financial incentives and tax breaks for businesses that invest in renewable energy projects. These include grants, loans, and subsidies for the purchase of equipment and installation costs. Additionally, businesses can benefit from net metering programs which allow them to sell excess electricity back to the grid at a premium rate. Finally, businesses may also be eligible for additional benefits 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 Mexico? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of San Ildefonso, Mexico
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 14th 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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