Prentiss, Mississippi presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variation typical of its Northern Sub-Tropical climate zone.
Seasonal Solar Performance
The solar energy output at this location shows strong seasonal patterns. Summer provides the highest electricity generation at 6.14 kWh per day for each kilowatt of installed solar capacity, making it the peak production season. Spring follows as the second-best performing season with 5.58 kWh per day per kilowatt installed. Autumn sees a notable drop in production to 4.62 kWh per day per kilowatt, while winter represents the challenging period with only 2.95 kWh per day per kilowatt - less than half of summer's output. This winter decline is typical for locations at this latitude, where the sun's angle becomes less favorable for solar collection. For optimal year-round energy capture, solar panels should be installed at a fixed tilt angle of 28 degrees facing south. This angle maximizes total annual production by balancing the varying sun angles throughout the seasons.Environmental and Weather Challenges
Several factors in the Prentiss area can impact solar energy production and require consideration during installation:- High humidity and frequent precipitation: Mississippi's subtropical climate brings regular rainfall and high moisture levels that can reduce solar panel efficiency and create maintenance challenges
- Severe weather events: The region experiences thunderstorms, potential tornadoes, and occasional ice storms that can damage solar installations
- Heat and humidity effects: High summer temperatures can reduce panel efficiency, while humidity promotes corrosion of electrical components
- Vegetation growth: The warm, humid climate encourages rapid plant growth that can create shading issues
Protective Measures for Better Performance
To maximize solar energy production despite these challenges, several installation strategies prove beneficial. Proper mounting systems should be engineered to withstand high winds and severe weather, with secure anchoring appropriate for local building codes. Adequate spacing between panels and the roof surface improves air circulation, helping panels run cooler and more efficiently during hot, humid periods. Regular cleaning schedules become more important in this climate to remove accumulated dirt, pollen, and organic matter that can reduce output. Electrical components should feature enhanced weather sealing and corrosion-resistant materials designed for humid environments. Strategic vegetation management around the installation site prevents shading while maintaining appropriate clearances for maintenance access. Installing monitoring systems helps identify performance issues quickly, allowing for prompt maintenance that keeps the system operating at peak efficiency despite the challenging subtropical environment.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 Prentiss
Seasonal solar PV output for Latitude: 31.6057, Longitude: -89.8735 (Prentiss, 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:
 
Ideally tilt fixed solar panels 28° South in Prentiss, United States
To maximize your solar PV system's energy output in Prentiss, United States (Lat/Long 31.6057, -89.8735) throughout the year, you should tilt your panels at an angle of 28° 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 Prentiss, 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 Prentiss, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 28° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 16° South in Summer | 37° South in Autumn | 47° South in Winter | 24° 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 Prentiss, 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 Prentiss, United States.
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 Prentiss, United States
Topographical Features Around Prentiss
The landscape surrounding Prentiss, Mississippi is characterized by gently rolling hills and mixed terrain typical of the southeastern United States. This region sits within the Coastal Plain physiographic province, where elevations gradually decrease as they extend toward the Gulf of Mexico. The topography features a combination of low ridges, shallow valleys, and relatively flat bottomlands that create a moderately undulating landscape. The area experiences subtle elevation changes, with most hills rising no more than a few hundred feet above the surrounding valleys. Dense pine forests dominate much of the higher ground, while hardwood forests and agricultural fields occupy the lower-lying areas. Small creeks and streams meander through the valleys, creating narrow floodplains that remain wet during periods of heavy rainfall.Soil and Drainage Characteristics
The underlying geology consists primarily of sedimentary deposits, creating soils that range from sandy loams on the ridgetops to clay-rich soils in the valley bottoms. Drainage patterns follow the natural topographic contours, with water flowing toward the Pearl River system to the west and smaller tributary networks throughout the region. Many areas experience seasonal variations in soil moisture, with some low-lying sections becoming temporarily saturated during wet periods. The sandy soils on elevated areas tend to drain more quickly, while clay-rich bottomlands may retain moisture for extended periods.Optimal Locations for Large-Scale Solar Development
The most suitable areas for large-scale solar photovoltaic installations would be the gently sloping to nearly flat elevated areas that offer good drainage and minimal shading from surrounding vegetation. These locations typically occur on broad ridgetops and upper slope positions where the terrain is stable and relatively level. Areas with south-facing slopes of less than ten degrees would be particularly well-suited for solar development, as they provide natural orientation advantages while maintaining accessibility for construction and maintenance equipment. The elevated positions also help ensure adequate air circulation around solar panels, which can improve their operational efficiency.Areas to Avoid for Solar Development
Low-lying areas near streams and in valley bottoms should generally be avoided for solar installations due to potential flooding risks and poor drainage conditions. These locations may also experience more frequent fog formation, which can reduce solar energy collection effectiveness. Heavily forested areas on steep slopes would require extensive clearing and grading, making them less economically viable for large-scale solar development. Additionally, areas with unstable soils or those prone to erosion would present long-term maintenance challenges for solar installations. The ideal solar development sites in the Prentiss area would be the cleared or lightly wooded elevated areas with gentle topography, good drainage, and minimal environmental constraints. Former agricultural fields on higher ground often present the most practical opportunities for solar development due to their existing cleared status and generally favorable terrain characteristics.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 11th of August 2025
Last Updated: Tuesday 12th 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.




