Acayucan, Mexico represents a highly favorable location for year-round solar photovoltaic energy generation. Located in the tropical zone at coordinates 17.995°N, -95.1268°W, this region benefits from consistent sunlight throughout most of the year, with seasonal variations characterized more by wet and dry periods rather than dramatic changes in solar availability.
Solar Energy Production Potential
The solar energy output data for Acayucan demonstrates excellent year-round generation potential. Spring emerges as the most productive season, delivering 6.18 kWh per day per kW of installed solar capacity. Summer follows closely with 5.81 kWh/day per kW, making these two seasons the peak production periods. Autumn provides moderate output at 4.87 kWh/day per kW, while winter shows the lowest but still substantial production at 4.23 kWh/day per kW. For optimal performance, solar panels should be installed at a fixed tilt angle of 16 degrees facing south. This angle maximizes total year-round production by accounting for the sun's path throughout different seasons and the Earth's elliptical orbit around the sun.Environmental and Weather Challenges
Several local factors could potentially impact solar energy production in Acayucan, though the location remains highly viable for solar installations. Tropical Weather Patterns: The region experiences distinct wet and dry seasons typical of tropical climates. During the wet season, increased cloud cover and frequent rainfall can temporarily reduce solar irradiance. However, the consistent year-round sunlight availability in tropical regions generally compensates for these periodic reductions. High Humidity and Precipitation: The tropical environment brings elevated humidity levels and substantial rainfall during wet periods. These conditions can lead to faster accumulation of dirt, dust, and organic matter on solar panels, potentially reducing their efficiency over time. Coastal Proximity Effects: Given Acayucan's location in Veracruz state, the relative proximity to coastal areas may introduce salt-laden air, which can accelerate corrosion of metal components in solar installations if not properly addressed.Preventative Measures for Optimal Performance
Several installation and maintenance strategies can help maximize solar energy production despite these environmental challenges:- Install panels with adequate spacing and ventilation to prevent moisture buildup and allow for proper air circulation
- Use corrosion-resistant mounting hardware and electrical components rated for high-humidity tropical environments
- Implement regular cleaning schedules, particularly during and after the wet season, to remove accumulated debris and organic matter
- Apply protective coatings to metal components to guard against humidity and potential salt air exposure
- Design drainage systems around installations to prevent water pooling during heavy rainfall periods
Overall Assessment
Despite these environmental considerations, Acayucan remains an excellent location for solar PV installations. The consistently high energy output throughout all seasons, with particularly strong performance in spring and summer, makes it well-suited for both residential and commercial solar projects. The environmental challenges are manageable with proper installation techniques and maintenance practices, making this tropical location highly recommended for solar energy generation.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 Acayucan
Seasonal solar PV output for Latitude: 17.995, Longitude: -95.1268 (Acayucan, 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 16° South in Acayucan, Mexico
To maximize your solar PV system's energy output in Acayucan, Mexico (Lat/Long 17.995, -95.1268) throughout the year, you should tilt your panels at an angle of 16° 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 Acayucan, 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 Acayucan, Mexico. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 16° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 2° South in Summer | 23° South in Autumn | 33° South in Winter | 11° 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 Acayucan, 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 Acayucan, 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 Acayucan, Mexico
Topographical Features Around Acayucan
Acayucan sits in the southeastern region of Veracruz state, positioned within the broad coastal plains that characterize much of Mexico's Gulf Coast region. The immediate area around the city features relatively flat to gently rolling terrain, with elevations typically ranging from 50 to 200 meters above sea level. This low-lying landscape is part of the larger Isthmus of Tehuantepec, which represents the narrowest portion of Mexico between the Gulf of Mexico and Pacific Ocean.
The terrain gradually rises as it extends inland from the coastal plains, transitioning into foothills and eventually reaching the Sierra Madre Oriental mountain range to the west and northwest. To the south and southeast, the landscape remains predominantly flat, extending toward the border with Tabasco state. The region is characterized by numerous rivers and streams that drain toward the Gulf of Mexico, creating a network of valleys and slight depressions in the otherwise level topography.
The soil composition in this area consists primarily of alluvial deposits brought down from the surrounding highlands over millennia. These sedimentary soils, while excellent for agriculture, also provide stable foundations for large-scale infrastructure projects. The relatively stable geological conditions, combined with the gentle topography, make the region well-suited for construction activities requiring extensive ground preparation.
Optimal Areas for Large-Scale Solar Development
The most promising locations for large-scale solar photovoltaic installations lie to the northwest and west of Acayucan, where the terrain becomes slightly more elevated and better drained. These areas offer several advantages, including reduced flood risk during the rainy season and more consistent ground conditions. The gentle slopes in these directions provide natural drainage while maintaining the relatively flat profiles necessary for efficient solar panel installation and maintenance access.
Areas extending toward the municipalities of Sayula de Alemán and Oluta present particularly favorable conditions. The topography in these zones features broad, open spaces with minimal natural obstacles such as deep ravines or steep hills. The elevation changes are gradual enough to allow for large, continuous solar arrays while providing sufficient drainage to prevent water accumulation during heavy rainfall periods.
The northern approaches toward Tres Valles also offer suitable terrain, with expansive flat areas that could accommodate substantial solar installations. These locations benefit from being positioned on slightly higher ground than the immediate coastal areas, reducing concerns about seasonal flooding while maintaining the accessibility needed for construction and ongoing operations.
Agricultural areas surrounding Acayucan, particularly those used for cattle grazing rather than intensive crop production, represent potential sites where solar development could coexist with existing land uses. The flat pastureland common in this region provides ideal conditions for solar installations, with minimal grading required and existing access roads that could be upgraded to support construction and maintenance activities.
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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Thursday 31st of July 2025
Last Updated: Friday 8th 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.




