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Flag of United StatesSolar PV Analysis of Saltillo, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Saltillo, United States (by season)

Saltillo, Mississippi represents a moderately good location for year-round solar energy generation, though it experiences significant seasonal variation typical of its Northern Sub Tropics climate zone.

Seasonal Solar Performance

The solar energy output at this location varies considerably throughout the year. Summer provides the strongest performance at 6.12 kWh per day per kW of installed solar capacity, making it the peak season for energy generation. Spring follows as the second-best season with 5.81 kWh per day per kW, offering nearly comparable output to summer months. Autumn sees a notable decline to 4.43 kWh per day per kW, while winter represents the most challenging period with only 2.65 kWh per day per kW. This winter figure is less than half of the summer output, indicating that solar systems in Saltillo will need to be sized appropriately to meet energy needs during the darker months.

Optimal Installation Configuration

For fixed panel installations at this location, the ideal angle to tilt panels to maximize total year-round production is 30 degrees facing south. This angle is calculated by analyzing daily solar elevation angles at the latitude, determining optimal panel tilt for each day, and weighting these angles by daily solar potential using NASA solar irradiance data to account for Earth's elliptical orbit.

Local Factors Affecting Solar Production

Several environmental and weather factors in Saltillo, Mississippi can impact solar energy production:
  • High humidity and frequent cloud cover during summer months, particularly from thunderstorms and weather systems moving up from the Gulf of Mexico
  • Ice storms and occasional snow in winter that can temporarily block panels
  • Heavy pollen loads in spring, especially from pine trees common in Mississippi
  • Dust and debris accumulation during dry periods

Preventative Measures for Better Performance

To maximize energy production despite these challenges, several installation strategies can help:
  • Install panels with adequate spacing to allow natural rain cleaning and air circulation
  • Use mounting systems that allow panels to be tilted steeper than 30 degrees if manual cleaning access is needed
  • Consider automated cleaning systems or plan for regular professional cleaning, especially during high-pollen seasons
  • Ensure robust mounting systems that can handle ice loading and strong winds from severe weather
  • Install monitoring systems to quickly identify when panels need cleaning or maintenance
Despite these seasonal variations and local challenges, Saltillo's location still provides reasonable solar potential, particularly during the six-month period from spring through early autumn when output remains relatively strong.

Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° latitude.

So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 4253 locations across the United States. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.

Link: Solar PV potential in the United States by location

Solar output per kW of installed solar PV by season in Saltillo

Seasonal solar PV output for Latitude: 34.3832, Longitude: -88.6671 (Saltillo, United States), 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 6.12kWh/day in Summer.
Autumn
Average 4.43kWh/day in Autumn.
Winter
Average 2.65kWh/day in Winter.
Spring
Average 5.81kWh/day in Spring.

 

Ideally tilt fixed solar panels 30° South in Saltillo, United States

To maximize your solar PV system's energy output in Saltillo, United States (Lat/Long 34.3832, -88.6671) throughout the year, you should tilt your panels at an angle of 30° 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: 34.3832, Longitude: -88.6671, the ideal angle to tilt panels is 30° South

Seasonally adjusted solar panel tilt angles for Saltillo, United States

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 Saltillo, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
18° South in Summer 39° South in Autumn 49° South in Winter 27° 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 Saltillo, United States as follows: In Summer, set the angle of your panels to 18° facing South. In Autumn, tilt panels to 39° facing South for maximum generation. During Winter, adjust your solar panels to a 49° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 27° angle facing South to capture the most solar energy in Saltillo, United States.

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 Saltillo, United States

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 Saltillo, United States.

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 Saltillo, United States

Topographical Features Around Saltillo

The landscape surrounding Saltillo in northeastern Mississippi is characterized by gently rolling hills and relatively modest elevation changes typical of the Appalachian foothills region. This area sits within the broader Tennessee River valley system, creating a terrain that undulates between low ridges and shallow valleys. The elevation varies gradually across the region, with most areas falling between 200 and 600 feet above sea level. The topography consists primarily of weathered sedimentary rock formations that have been shaped by centuries of erosion, resulting in rounded hilltops and gradual slopes rather than steep cliffs or dramatic elevation changes. Small creeks and tributaries have carved gentle valleys throughout the landscape, creating a pattern of alternating ridges and hollows that extend in various directions. Agricultural land dominates much of the surrounding countryside, with open fields and pastures occupying both the valley floors and the more gently sloped hillsides. Forested areas are interspersed throughout the region, typically covering the steeper slopes and areas less suitable for farming. These woodlands consist mainly of mixed hardwood and pine forests common to the southeastern United States.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations would be found on the broader, flatter ridge tops and the expansive valley floors where the terrain is relatively level. These areas offer the dual advantages of minimal grading requirements and reduced installation costs while providing adequate space for extensive solar arrays. South-facing slopes with gentle gradients present excellent opportunities for solar development, as they naturally orient panels toward optimal sun exposure throughout the day. The rolling nature of the terrain means that many hillsides offer this favorable southern exposure without requiring significant earthwork or complex mounting systems. Open agricultural fields, particularly those on level or gently sloping ground, represent prime candidates for solar farm development. These areas typically have already been cleared of trees and have established access roads, reducing initial site preparation costs. The existing farming infrastructure often includes electrical connections and road access that could be adapted for solar installations. Valley floors with good drainage characteristics would also be well-suited for large solar arrays, especially where they extend over substantial acreage. These flatter areas allow for efficient panel layout and maintenance access while minimizing the complexity of tracking systems or specialized mounting equipment needed on more challenging terrain. Areas to avoid would include the steeper hillsides, heavily forested regions that would require extensive clearing, and low-lying areas prone to flooding or poor drainage. The naturally undulating landscape does create some challenges with shading between panel rows, but the generally gentle nature of the topography means these issues can typically be managed through proper spacing and design considerations.

United States solar PV Stats as a country

United States ranks 2nd in the world for cumulative solar PV capacity, with 95,209 total MW's of solar PV installed. This means that 3.40% of United States's total energy as a country comes from solar PV (that's 26th in the world). Each year United States is generating 289 Watts from solar PV per capita (United States ranks 15th in the world for solar PV Watts generated per capita). [source]

Are there incentives for businesses to install solar in United States?

Yes, there are several incentives for businesses wanting to install solar energy in the United States. These include federal tax credits, state and local rebates, net metering policies, and renewable energy certificates (RECs). Additionally, many states have enacted legislation that requires utilities to purchase a certain amount of electricity from renewable sources such as solar.

Do you have more up to date information than this on incentives towards solar PV projects in United States? Please reach out to us and help us keep this information current. Thanks!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Saltillo, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 30th 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.

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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.

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