Lanett, Alabama is a reasonably good location for solar energy generation throughout most of the year, though it experiences significant seasonal variation typical of its Northern Sub Tropical climate zone at coordinates 32.8687, -85.1905.
Seasonal Solar Performance
The location shows strong solar production during spring and summer months, with both seasons generating over 6 kWh per day per kilowatt of installed solar capacity. Spring slightly edges out summer with 6.20 kWh/day compared to summer's 6.19 kWh/day, making these the ideal times for solar generation at this site. Autumn production drops to a moderate 4.64 kWh/day per kilowatt, while winter shows the weakest performance at just 2.91 kWh/day per kilowatt. This winter dip represents less than half the production capacity of the peak seasons, which is typical for locations at this latitude.Optimal Installation Setup
For maximum year-round energy production at Lanett, solar panels should be installed at a fixed tilt angle of 29 degrees facing south. This angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting for the varying solar potential across all seasons.Local Factors Affecting Solar Production
Several environmental and weather factors in the Lanett area can impact solar energy generation:- Humidity and moisture: The subtropical climate brings high humidity levels that can reduce panel efficiency and create more frequent condensation on panels
- Severe weather events: The region experiences thunderstorms, potential tornadoes, and occasional ice storms that can damage installations or temporarily reduce output
- Tree coverage: Alabama's heavily forested landscape means shading from nearby trees can significantly impact production
- Dust and pollen: High pollen counts during spring months and general dust accumulation can coat panels and reduce efficiency
Preventative Measures for Better Performance
To maximize solar production despite these challenges, several installation strategies should be considered:- Regular cleaning schedule: Implement quarterly panel cleaning to remove pollen, dust, and debris buildup
- Proper mounting systems: Use robust mounting hardware rated for high winds and potential severe weather
- Strategic placement: Carefully survey the site to avoid current and future tree shading, potentially requiring tree trimming
- Ventilation considerations: Ensure adequate airflow around panels to combat efficiency losses from high humidity and heat
- Professional maintenance: Schedule annual inspections to check for weather damage and ensure optimal performance
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 Lanett
Seasonal solar PV output for Latitude: 32.8687, Longitude: -85.1905 (Lanett, 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 29° South in Lanett, United States
To maximize your solar PV system's energy output in Lanett, United States (Lat/Long 32.8687, -85.1905) throughout the year, you should tilt your panels at an angle of 29° 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 Lanett, 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 Lanett, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 17° South in Summer | 38° South in Autumn | 48° South in Winter | 25° 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 Lanett, 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 Lanett, 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 Lanett, United States
Topographical Features of the Lanett Region
Lanett sits in the eastern part of Alabama along the Georgia border, positioned within the Piedmont physiographic region. This area is characterized by gently rolling hills and moderate elevation changes that create a landscape of undulating terrain. The city itself lies at approximately 700 feet above sea level, with the surrounding countryside featuring a mix of ridges, valleys, and relatively flat plateaus that are typical of the Alabama Piedmont.
The most significant topographical feature in the immediate vicinity is the Chattahoochee River, which forms the natural boundary between Alabama and Georgia. This river system has carved valleys and created floodplains that provide some of the flatter terrain in the region. The river's influence extends beyond just the immediate floodplain, as it has shaped the broader landscape through centuries of erosion and sediment deposition.
Moving away from the river corridor, the terrain becomes more varied with gentle slopes and rounded hilltops. The elevation changes are generally gradual rather than steep, with most hills rising no more than 100 to 200 feet above the surrounding valleys. This rolling topography is interspersed with numerous small creeks and streams that drain into the Chattahoochee River system, creating a network of minor valleys and drainage areas throughout the region.
Soil and Surface Conditions
The underlying geology of the Lanett area consists primarily of metamorphic rocks from the Piedmont province, including schists and gneisses that have weathered over time to create characteristic red clay soils. These soils are generally well-drained on the hillsides and ridgetops, though they can become quite sticky and challenging to work with when wet. In the lower-lying areas and valleys, alluvial soils deposited by streams and rivers tend to be more fertile and better suited for agriculture.
The region's surface is predominantly covered by a mixture of pine and hardwood forests, agricultural fields, and residential development. Many areas that were once cleared for farming have been allowed to return to forest, creating a patchwork landscape of different land uses and vegetation types across the rolling terrain.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations in the Lanett area would be the relatively flat to gently sloping plateaus and ridge tops that offer good southern exposure. These elevated areas typically provide the best combination of accessible terrain and minimal shading from surrounding topographical features. The broad, rounded hilltops characteristic of the Piedmont region are particularly well-suited for solar development as they offer substantial contiguous areas with favorable orientation.
Areas within the Chattahoochee River floodplain and adjacent terraces also present excellent opportunities for solar development. These locations tend to be relatively flat with minimal slope, reducing the complexity and cost of installation. However, careful consideration would need to be given to flood risk and environmental regulations that may apply to development near waterways.
The agricultural fields scattered throughout the rolling landscape represent another category of potentially suitable sites. Many of these cleared areas on gentle slopes could accommodate solar installations with minimal additional site preparation. Fields located on south-facing slopes would be particularly advantageous, as the natural terrain orientation would optimize panel positioning for maximum energy capture.
When evaluating specific sites, preference should be given to areas with slopes of less than 15 degrees, adequate road access for construction and maintenance vehicles, and proximity to existing electrical transmission infrastructure. The region's generally moderate topography means that most locations would not require extensive grading or earthwork, making development more economically feasible compared to areas with steeper or more complex terrain.
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: Wednesday 23rd 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.




