Eufaula, Alabama, located in the Northern Sub Tropics at latitude 31.903 and longitude -85.1663, offers a generally favorable environment for solar PV energy generation throughout the year. The location's potential for solar energy production varies across seasons, with some periods being more ideal than others.
Seasonal Solar Production
Solar energy output in Eufaula fluctuates significantly across the seasons. Spring and summer are the most productive periods, with daily outputs of 6.29 kWh and 6.25 kWh per kW of installed solar capacity, respectively. Autumn sees a moderate decrease to 4.75 kWh/day, while winter experiences the lowest production at 3.01 kWh/day per kW installed.
Optimal Times for Solar Generation
The most ideal times for solar energy generation in Eufaula are during the spring and summer months, typically from March through August. These periods offer longer daylight hours and more direct sunlight, resulting in peak solar panel efficiency. While autumn still provides decent solar output, winter months see a significant drop in production due to shorter days and less intense sunlight.
Panel Installation Considerations
For fixed panel installations in Eufaula, the ideal tilt angle to maximize year-round solar production is 28 degrees facing south. This angle optimizes the panels' exposure to sunlight throughout the year, accounting for seasonal variations in the sun's position.
Environmental and Weather Factors
While Eufaula's climate is generally conducive to solar energy production, there are some factors that could potentially impact solar panel efficiency:
- Humidity: The region's subtropical climate can lead to high humidity levels, which may slightly reduce panel efficiency.
- Thunderstorms: Frequent summer thunderstorms can temporarily decrease solar output.
To mitigate these factors, consider using humidity-resistant solar panels and implementing a robust cleaning schedule to prevent dust and pollen accumulation. Additionally, installing a monitoring system can help track performance and identify any issues promptly.
Overall, Eufaula's location provides a good opportunity for solar PV energy generation, with ample sunlight throughout most of the year, especially during spring and summer months.
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 Eufaula
Seasonal solar PV output for Latitude: 31.903, Longitude: -85.1663 (Eufaula, 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 Eufaula, United States
To maximize your solar PV system's energy output in Eufaula, United States (Lat/Long 31.903, -85.1663) 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 Eufaula, 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 Eufaula, 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 Eufaula, 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 Eufaula, 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 Eufaula, United States
The topography around Eufaula, Alabama, is characterized by gently rolling hills and flat plains typical of the southeastern United States. The area is situated in the East Gulf Coastal Plain region, which features a mix of woodlands, agricultural fields, and numerous water bodies. The landscape is dominated by the presence of Lake Eufaula, also known as Walter F. George Lake, a large reservoir created by damming the Chattahoochee River. The terrain in and around Eufaula is relatively low-lying, with elevations generally ranging from about 150 to 500 feet above sea level. The land gradually rises as you move away from the lake and river, forming subtle hills and ridges. The area is also dotted with small streams and creeks that feed into the larger water bodies. Forests cover much of the region, consisting primarily of pine and hardwood trees. These wooded areas are interspersed with cleared lands used for agriculture, pastures, and urban development. The soil in the region is typically a mix of sand, clay, and loam, which supports diverse vegetation and agricultural activities.
Suitability for Large-Scale Solar PV
When considering areas nearby that would be most suited to large-scale solar photovoltaic (PV) installations, several factors come into play. The ideal locations would have the following characteristics: Firstly, large, open spaces with minimal shading from trees or structures are essential. The agricultural lands and cleared areas surrounding Eufaula could potentially serve this purpose. These flat or gently sloping fields provide ample space for solar panel arrays and receive consistent sunlight throughout the day. Secondly, areas with good road access would be preferable for ease of construction and maintenance. The region around Eufaula has a network of highways and local roads that could facilitate the development of solar projects. Thirdly, proximity to existing electrical infrastructure is important for connecting solar installations to the grid. Areas near power lines or substations would be advantageous. Lastly, locations that are not prone to flooding or erosion would be ideal. Higher ground away from the lake and major waterways would likely be more suitable for long-term solar installations. Given these considerations, the most promising areas for large-scale solar PV near Eufaula would likely be found in the cleared agricultural lands to the north and east of the city, where there are expansive, relatively flat areas with good sun exposure and existing infrastructure. However, detailed site assessments would be necessary to determine the most optimal locations for such 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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 22nd of February 2025
Last Updated: Monday 21st of July 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.




