Santa Cruz Tlaxcala, Mexico presents an excellent location for year-round solar photovoltaic energy generation. Located in the tropics at coordinates 19.3526°N, -98.1523°W, this area benefits from consistent sunlight throughout most of the year, with seasons typically characterized by wet and dry periods rather than dramatic temperature variations.
Solar Energy Production Potential
The solar energy output data for Santa Cruz Tlaxcala demonstrates strong and consistent performance across all seasons. Spring emerges as the peak production period, generating 7.25 kWh per day per kW of installed solar capacity. Summer and winter show nearly identical output at 5.88 kWh/day and 5.86 kWh/day respectively, while autumn produces 5.60 kWh/day per kW installed. This seasonal pattern makes Santa Cruz Tlaxcala particularly attractive for solar installations, as the variation between the highest and lowest producing seasons is relatively modest. The location maintains good energy generation even during the traditionally lower-output autumn months. For optimal year-round energy production, solar panels should be installed at a fixed tilt angle of 19 degrees facing south. This angle has been calculated to maximize total annual solar output by accounting for the sun's position throughout the year and weighting the optimal daily angles by actual solar irradiance data.Environmental and Weather Factors
Several environmental factors in the Santa Cruz Tlaxcala region could potentially impact solar energy production:- Seasonal rainfall and humidity: The tropical wet season brings increased cloud cover, high humidity, and frequent precipitation that can reduce solar irradiance and create dust and debris accumulation on panels
- Dust and particulate matter: The dry season can generate significant dust, especially in agricultural areas, which accumulates on solar panels and reduces their efficiency
- Volcanic ash: Mexico's volcanic activity, particularly from nearby volcanoes, can deposit ash particles that coat solar panels
- Hail during storms: Intense thunderstorms during the wet season may produce hail that could damage solar panels
Preventative Measures for Optimal Performance
To maximize solar energy production and protect installations in Santa Cruz Tlaxcala, several preventative measures should be implemented: Regular cleaning schedules become essential, particularly during the dry season when dust accumulation is heaviest and immediately following any volcanic ash events. Installing automated cleaning systems or planning for frequent manual cleaning can maintain panel efficiency. Choosing solar panels with tempered glass and robust frames helps protect against hail damage and severe weather. Some manufacturers offer panels specifically rated for extreme weather conditions that would be suitable for this tropical location. Proper drainage systems around solar installations prevent water pooling during heavy rains and reduce humidity-related issues. Adequate spacing between panels allows for better air circulation, helping to minimize moisture retention and improve cooling. Installing monitoring systems enables quick identification of performance drops due to soiling or weather-related issues, allowing for prompt maintenance responses. These systems can alert operators when cleaning or repairs are needed to maintain optimal energy production. The combination of consistent tropical sunlight and proper installation techniques makes Santa Cruz Tlaxcala a highly viable location for solar energy generation, with the potential for strong returns on investment when appropriate preventative measures are implemented.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 Santa Cruz Tlaxcala
Seasonal solar PV output for Latitude: 19.3526, Longitude: -98.1523 (Santa Cruz Tlaxcala, 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:
 
Ideally tilt fixed solar panels 19° South in Santa Cruz Tlaxcala, Mexico
To maximize your solar PV system's energy output in Santa Cruz Tlaxcala, Mexico (Lat/Long 19.3526, -98.1523) 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.
Seasonally adjusted solar panel tilt angles for Santa Cruz Tlaxcala, 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 Santa Cruz Tlaxcala, 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 | 25° South in Autumn | 35° South in Winter | 13° South 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 Santa Cruz Tlaxcala, 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 Santa Cruz Tlaxcala, Mexico.
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 Santa Cruz Tlaxcala, Mexico
Topographical Features of Santa Cruz Tlaxcala
Santa Cruz Tlaxcala sits within the central Mexican plateau, positioned at an elevation of approximately 2,200 meters above sea level. The terrain around this location is characterized by gently rolling hills and broad valleys that are typical of the Trans-Mexican Volcanic Belt region. The landscape features a mix of agricultural flatlands interspersed with low ridges and volcanic formations that have been weathered over millennia. The immediate vicinity displays relatively moderate topographical variation, with slopes that are generally gradual rather than steep. This area forms part of the larger Puebla-Tlaxcala Valley system, where ancient volcanic activity has created a series of elevated plateaus separated by shallow depressions. The terrain tends to undulate in a pattern of low hills rising 50 to 150 meters above the surrounding plains. Water drainage follows natural contours toward the northeast, with several seasonal streams cutting shallow channels through the landscape. These waterways have created small valleys and gentle ravines that add texture to what might otherwise be considered relatively uniform terrain. The soil composition reflects the volcanic origins of the region, with layers of volcanic ash and weathered rock creating stable foundation conditions.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations would be found on the broader plateau areas to the south and southwest of Santa Cruz Tlaxcala. These zones offer expansive flat to gently sloping terrain with minimal topographical obstacles that could create shading issues or complicate installation procedures. The elevated plains in these directions provide stable ground conditions while maintaining accessibility for construction and maintenance equipment. Areas along the wider valley floors present excellent opportunities for large solar arrays, particularly where agricultural use has already cleared vegetation and established relatively level surfaces. The terrain in these locations typically features slopes of less than five degrees, which is ideal for optimizing panel positioning while minimizing grading requirements. The southeastern approach toward the Malinche volcanic region should generally be avoided for major installations due to increasing elevation changes and more complex terrain features. Similarly, areas immediately to the north present more fragmented topography with smaller suitable parcels rather than the continuous expanses needed for utility-scale development. Transportation infrastructure accessibility favors development along the flatter corridors that extend westward toward Tlaxcala city and southward toward Puebla. These routes follow natural topographical features and provide the necessary access for equipment transport and grid connection infrastructure while maintaining the terrain advantages essential for efficient solar installations.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!
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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 26th of July 2025
Last Updated: Thursday 7th of August 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.
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.




