Spring Hill, Tennessee, located in the Northern Temperate Zone, offers moderately good conditions for year-round solar energy generation. The location experiences significant seasonal variation in solar output, with summer producing the highest energy yields and winter showing the lowest production levels.
Seasonal Solar Production
The solar energy output at Spring Hill varies considerably throughout the year. Summer months deliver the peak performance at 6.27 kWh per day per kW of installed solar capacity, making this the most productive season for solar generation. Spring follows as the second-best season with 5.65 kWh per day per kW, offering excellent energy production as daylight hours increase and weather conditions improve. Autumn production drops to 4.25 kWh per day per kW as the sun angle decreases and weather patterns shift. Winter presents the most challenging conditions, with output falling to just 2.57 kWh per day per kW of installed capacity, representing less than half of summer production levels. For optimal year-round energy capture at this location, solar panels should be installed at a fixed tilt angle of 31 degrees facing south. This angle maximizes total annual production by balancing the sun's varying position throughout the seasons.Environmental and Weather Factors
Several local factors in Spring Hill can impact solar energy production and should be considered during installation planning. Tennessee's humid subtropical climate brings frequent thunderstorms, particularly during spring and summer months. These storms can temporarily reduce solar output and potentially damage equipment if proper precautions aren't taken. Heavy cloud cover during storm systems can significantly decrease energy production for several days at a time. Winter weather occasionally brings ice storms and snow to the region, which can block solar panels and reduce output. While snow typically melts quickly in Tennessee's moderate climate, ice accumulation can persist longer and pose equipment risks. The area's high humidity levels can lead to increased dust and pollen accumulation on solar panels, particularly during spring when pollen counts are exceptionally high. This buildup creates a film that reduces the panels' ability to capture sunlight effectively.Preventative Installation Measures
Several strategies can help maximize solar production despite these environmental challenges:- Install panels with adequate spacing and proper mounting systems designed to withstand high winds and severe weather typical of Tennessee thunderstorms
- Choose panels with anti-reflective coatings and smooth surfaces that help shed debris and moisture more effectively
- Implement regular cleaning schedules, especially during high-pollen seasons in spring
- Consider installing monitoring systems that can detect performance drops due to weather-related obstructions
- Ensure proper electrical grounding and surge protection to guard against lightning strikes common in the region
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° 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 Spring Hill, Tennessee
Seasonal solar PV output for Latitude: 35.7512, Longitude: -86.93 (Spring Hill, Tennessee, 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 31° South in Spring Hill, Tennessee, United States
To maximize your solar PV system's energy output in Spring Hill, Tennessee, United States (Lat/Long 35.7512, -86.93) throughout the year, you should tilt your panels at an angle of 31° 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 Spring Hill, Tennessee, 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 Spring Hill, Tennessee, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 19° South in Summer | 41° South in Autumn | 51° South in Winter | 28° 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 Spring Hill, Tennessee, 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 Spring Hill, Tennessee, 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 Spring Hill, Tennessee, United States
Topography Around Spring Hill, Tennessee
Spring Hill sits within the gently rolling landscape of Middle Tennessee, characterized by moderate elevation changes and a mix of open agricultural land and forested areas. The terrain in this region consists primarily of undulating hills with elevations ranging from approximately 600 to 800 feet above sea level. The topography is part of the Nashville Basin, a geological formation that creates relatively gentle slopes and broad valleys ideal for development and agriculture.
The area features a combination of cleared farmland, pastures, and wooded hillsides typical of the Tennessee countryside. Many of the hills have gradual slopes rather than steep inclines, making the terrain generally accessible for various land uses. Small creeks and streams wind through the valleys, creating natural drainage patterns that have shaped the local landscape over time.
Spring Hill itself is positioned on relatively level ground with gentle rises, while the surrounding countryside becomes more varied with rolling hills extending in all directions. The soil composition consists largely of limestone-derived materials, which contribute to the area's agricultural productivity and provide stable foundations for construction projects.
Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations around Spring Hill would be the expansive agricultural fields and cleared pasture lands that dot the landscape. These areas offer several advantages including existing open spaces that require minimal clearing, relatively flat or gently sloping terrain that simplifies installation, and good accessibility via existing farm roads and rural highways.
South-facing slopes throughout the region present particularly attractive opportunities for solar development, as these orientations maximize exposure to sunlight throughout the day. The moderate elevation changes work in favor of solar installations, as gentle slopes can actually improve panel efficiency compared to completely flat terrain by providing better drainage and air circulation.
Areas immediately southeast and southwest of Spring Hill contain substantial tracts of open farmland that could accommodate large solar arrays. These locations benefit from the region's generally clear sight lines and minimal shading from surrounding vegetation or structures. The existing agricultural infrastructure, including access roads and electrical connections serving farm operations, could potentially support solar development with appropriate modifications.
Former agricultural lands that have transitioned out of active farming represent another promising category for solar development. These areas often retain the open characteristics necessary for solar installations while potentially facing fewer conflicts with ongoing agricultural operations. The relatively stable geology of the Nashville Basin provides good conditions for the foundation systems required by large solar installations.
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: Sunday 13th of July 2025
Last Updated: Wednesday 6th of August 2025
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Compare this location to others worldwide for solar PV potential
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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.




