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Flag of MexicoSolar PV Analysis of Huehuetoca, Mexico

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

Huehuetoca, México, Mexico presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropics at coordinates 19.8297°N, -99.2063°W, this area benefits from consistent sunlight throughout most of the year, with seasons characterized more by wet and dry periods rather than dramatic temperature variations.

Solar Energy Production Potential

The solar energy output data for Huehuetoca shows strong performance across all seasons. Spring emerges as the peak production period, generating 7.24 kWh per day per kW of installed solar capacity. Winter follows closely with 5.89 kWh/day per kW, while summer produces 5.73 kWh/day per kW, and autumn generates 5.49 kWh/day per kW. This seasonal pattern is typical for locations at this latitude, where spring offers optimal conditions with clear skies and excellent sun angles before the wet season begins. The consistently high production values throughout the year make this an ideal location for solar installations. For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 19 degrees facing south. This optimal angle is calculated by analyzing daily solar elevation angles, determining optimal panel positioning, and weighting these calculations using solar irradiance data while accounting for Earth's elliptical orbit.

Environmental and Weather Challenges

Several local factors could potentially impact solar energy production in Huehuetoca and require careful consideration during installation planning. Seasonal Rainfall and Humidity The tropical wet season brings heavy rainfall and increased humidity levels. While rain can help clean solar panels naturally, excessive moisture and cloud cover during wet periods can reduce energy output. Extended cloudy periods during the rainy season may cause temporary decreases in production efficiency. Dust and Particulate Matter The region's proximity to Mexico City and local agricultural activities can result in dust accumulation on solar panels. Airborne particles from construction, farming, and urban pollution can create a film on panel surfaces that reduces light transmission and decreases energy production over time. High Altitude Considerations Huehuetoca sits at a relatively high elevation, which can lead to more intense UV radiation and greater temperature fluctuations between day and night. While increased solar irradiance can boost production, thermal cycling may stress panel materials and mounting systems.

Preventative Measures for Optimal Performance

Several installation strategies can help maximize solar energy production despite these environmental challenges:
  • Install panels with adequate spacing and ventilation to prevent overheating and allow for thermal expansion
  • Use high-quality mounting systems designed to withstand temperature cycling and potential seismic activity
  • Implement regular cleaning schedules, particularly during dry seasons when dust accumulation is highest
  • Consider automated cleaning systems or easy-access designs for maintenance in larger installations
  • Select panels and inverters rated for high-altitude and high-UV environments
Drainage and Water Management Proper installation should include adequate drainage systems to handle heavy rainfall during wet seasons. Mounting systems should be designed to shed water quickly and prevent standing water that could lead to corrosion or electrical issues. Lightning Protection The combination of high elevation and seasonal thunderstorms increases lightning risk. Installing appropriate grounding systems and surge protection devices is essential for protecting the solar array and associated electrical equipment. Despite these considerations, Huehuetoca remains an excellent location for solar energy generation. The consistent high energy output throughout the year, combined with proper installation techniques and maintenance practices, makes this location highly suitable for both residential and commercial solar photovoltaic systems.

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 Huehuetoca

Seasonal solar PV output for Latitude: 19.8297, Longitude: -99.2063 (Huehuetoca, 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 5.73kWh/day in Summer.
Autumn
Average 5.49kWh/day in Autumn.
Winter
Average 5.89kWh/day in Winter.
Spring
Average 7.24kWh/day in Spring.

 

Ideally tilt fixed solar panels 19° South in Huehuetoca, Mexico

To maximize your solar PV system's energy output in Huehuetoca, Mexico (Lat/Long 19.8297, -99.2063) 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: 19.8297, Longitude: -99.2063, the ideal angle to tilt panels is 19° South

Seasonally adjusted solar panel tilt angles for Huehuetoca, 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 Huehuetoca, 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 Huehuetoca, 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 Huehuetoca, 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 Huehuetoca, 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 Huehuetoca, 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 Huehuetoca, Mexico

Topographical Features of Huehuetoca

Huehuetoca sits in the northern portion of the Valley of Mexico, positioned within the Trans-Mexican Volcanic Belt at an elevation of approximately 2,240 meters above sea level. The surrounding landscape is characterized by gently rolling hills and relatively flat terrain that extends across much of the northern State of Mexico region. This area represents part of the broader Mexican Plateau, where ancient volcanic activity has created a series of elevated plains punctuated by low-lying mountain ranges. The immediate vicinity of Huehuetoca features predominantly gentle slopes with gradients typically ranging from one to five degrees. These modest inclines are interspersed with flatter areas that were historically part of ancient lake beds, remnants of the extensive lake system that once covered much of the Valley of Mexico. The terrain becomes more pronounced toward the east and west, where the Sierra de Guadalupe and other smaller mountain ranges create more dramatic elevation changes.

Climate and Environmental Conditions

The region experiences a semi-arid climate typical of the Mexican Plateau, with distinct wet and dry seasons. The high elevation contributes to cooler temperatures compared to lower-lying areas, while the relatively open landscape allows for excellent solar exposure throughout most of the year. The area receives abundant sunshine during the extensive dry season, which typically spans from November through April. Vegetation in the area is sparse, consisting primarily of scrubland, grassland, and scattered agricultural plots. The natural landscape has been significantly modified by human activity, with much of the original ecosystem converted to agricultural use or urban development. This existing land use pattern creates opportunities for renewable energy development on areas that may be less suited to intensive agriculture.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Huehuetoca would be the extensive flat to gently sloping areas that extend northward and westward from the town center. These zones offer several advantages including minimal grading requirements, reduced construction costs, and excellent solar access with minimal shading concerns. The relatively uniform topography across these areas would allow for efficient panel layout and maintenance access. Areas with south-facing slopes of two to four degrees would be particularly advantageous, as they would naturally optimize panel orientation while maintaining manageable construction and maintenance conditions. The flat former lake bed areas, while requiring careful soil analysis, could accommodate very large installations with standardized mounting systems and simplified electrical infrastructure. The western approaches to Huehuetoca present especially promising opportunities, where the terrain remains relatively flat for several kilometers before encountering more significant topographical features. These areas are generally less developed than zones closer to Mexico City, potentially offering larger contiguous parcels suitable for utility-scale projects.

Infrastructure and Access Considerations

The topography around Huehuetoca supports good transportation access, with existing road networks following the natural contours of the landscape. The gentle terrain has allowed for the development of straight, well-maintained roads that would facilitate the transportation of solar equipment and ongoing maintenance activities. The proximity to major transportation corridors connecting to Mexico City provides additional logistical advantages. Electrical transmission infrastructure in the region has been developed to serve the growing communities north of Mexico City, creating potential interconnection opportunities for solar projects. The relatively flat terrain would simplify the installation of additional transmission lines if needed to support large-scale renewable energy development. The stable geological conditions typical of this part of the Mexican Plateau, combined with the manageable topography, would support the foundation requirements for solar mounting systems while minimizing the risk of ground movement or settling that could affect long-term system performance.

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 Huehuetoca, Mexico
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 20th of July 2025
Last Updated: Thursday 7th of August 2025

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