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Flag of United StatesSolar PV Analysis of Fayette, United States

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

Fayette, Alabama represents a moderately good location for year-round solar energy generation, though it faces some seasonal challenges typical of its Northern Sub Tropical climate zone at coordinates 33.6846, -87.8308.

Seasonal Solar Performance

The solar energy output at this location varies significantly throughout the year. Summer delivers the strongest performance at 6.06 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows closely behind with 5.93 kWh per day per kW, representing nearly equivalent production levels. Autumn sees a notable decline to 4.43 kWh per day per kW, while winter presents the most challenging period with only 2.79 kWh per day per kW. This winter reduction represents less than half of the summer output, which is typical for locations at this latitude. The ideal months for solar generation are clearly the warmer seasons, with summer and spring providing the most reliable and substantial energy production. For optimal year-round performance, solar panels should be installed at a fixed tilt angle of 29 degrees facing south.

Environmental and Weather Factors

Several local factors in Fayette, Alabama can impact solar energy production:
  • High humidity levels typical of the Northern Sub Tropics can reduce panel efficiency
  • Frequent thunderstorms and severe weather during spring and summer months
  • Potential for ice storms during winter periods
  • Heavy pollen loads in spring that can coat panels
  • Occasional tornado activity in the region

Preventative Installation Measures

To maximize solar production despite these challenges, several installation strategies should be considered:
  • Install panels with adequate ventilation underneath to combat humidity-related efficiency losses
  • Use robust mounting systems designed to withstand high winds and severe weather
  • Implement regular cleaning schedules, particularly during pollen season
  • Consider micro-inverters or power optimizers to minimize impact from partial shading or soiling
  • Ensure proper grounding and surge protection for lightning-prone areas
Regular maintenance becomes particularly important in this climate, with quarterly cleaning recommended during peak pollen seasons and after major weather events. Despite these considerations, Fayette's solar potential remains viable for residential and commercial installations when properly planned and maintained.

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 Fayette

Seasonal solar PV output for Latitude: 33.6846, Longitude: -87.8308 (Fayette, 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 6.06kWh/day in Summer.
Autumn
Average 4.43kWh/day in Autumn.
Winter
Average 2.79kWh/day in Winter.
Spring
Average 5.93kWh/day in Spring.

 

Ideally tilt fixed solar panels 29° South in Fayette, United States

To maximize your solar PV system's energy output in Fayette, United States (Lat/Long 33.6846, -87.8308) 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.

The sun
At Latitude: 33.6846, Longitude: -87.8308, the ideal angle to tilt panels is 29° South

Seasonally adjusted solar panel tilt angles for Fayette, 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 Fayette, 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 39° South in Autumn 49° South in Winter 26° 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 Fayette, United States as follows: In Summer, set the angle of your panels to 17° 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 26° angle facing South to capture the most solar energy in Fayette, 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 Fayette, 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 Fayette, 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 Fayette, United States

Topographical Features of Fayette, Alabama

Fayette is situated in the northwestern region of Alabama within the Appalachian Plateau physiographic province. The terrain around this area is characterized by gently rolling hills and broad, flat-topped ridges that are typical of the Cumberland Plateau's southern extension. The elevation in and around Fayette ranges from approximately 400 to 600 feet above sea level, creating a moderately undulating landscape that transitions gradually between higher and lower elevations.

The topography is dominated by sedimentary rock formations that have been weathered over millions of years, resulting in relatively stable geological conditions. The area features numerous small valleys and creek beds that drain toward the Sipsey River system, with the terrain generally sloping toward the southwest. These drainage patterns have carved gentle slopes throughout the region, creating a patchwork of ridgetops, hillsides, and valley floors.

The soil composition consists primarily of clay and sandy loam deposits, with some areas containing underlying limestone and sandstone bedrock. This geological foundation provides good stability for construction projects while maintaining adequate drainage characteristics. The landscape is interspersed with mixed hardwood and pine forests, agricultural fields, and cleared pastureland, indicating that much of the original forest cover has been modified for human use over the past century.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Fayette would be the broad, flat-topped ridges and gently sloping hillsides that face south or southwest. These elevated areas typically offer the best combination of unobstructed sky exposure and stable ground conditions. The ridgetops, in particular, tend to have fewer trees and are often used for agriculture or maintained as open grassland, reducing the need for extensive land clearing.

Agricultural areas and former farmland present excellent opportunities for solar development, as these locations already have minimal tree cover and relatively level terrain. The rolling hills with gradual slopes of less than 15 degrees would be ideal, as steeper terrain would require more complex mounting systems and potentially increase installation costs. Areas that have been previously cleared for farming or grazing typically have established access roads, which would facilitate construction and maintenance activities.

The elevated plateau areas offer additional advantages because they are less likely to experience prolonged fog or mist that can occur in lower-lying valleys and creek bottoms. These higher elevations also tend to have better air circulation, which can help maintain optimal operating temperatures for solar panels. The stable geological conditions of the sedimentary bedrock provide excellent foundation support for large solar array installations.

Locations near existing electrical infrastructure would be particularly valuable, as they would reduce the costs associated with connecting solar facilities to the power grid. The relatively open terrain and established road networks throughout much of the agricultural areas around Fayette would support the transportation of equipment and materials needed for large-scale solar construction projects.

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 Fayette, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 1st of August 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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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.

Calculate Your Optimal Solar Panel Tilt Angle