LaFollette, Tennessee presents a moderately favorable location for year-round solar energy generation, though with significant seasonal variations typical of its Northern Temperate Zone climate.

Seasonal Solar Performance

The solar energy output at this location varies considerably throughout the year. Summer provides the strongest performance at 6.45 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows as the second-best season with 5.48 kWh per day per kW, offering excellent production levels as daylight hours increase and weather conditions improve. Autumn sees a notable decline to 3.97 kWh per day per kW as the sun angle decreases and weather patterns shift. Winter presents the most challenging conditions with only 2.33 kWh per day per kW, representing roughly one-third of summer production levels. For fixed panel installations at this location, the ideal tilt angle is 31 degrees facing south to maximize total year-round energy production.

Environmental and Weather Challenges

Several factors in the LaFollette area can impact solar energy production:

• Fog and humidity: The Tennessee Valley region experiences frequent morning fog, particularly in autumn and winter, which can reduce early-day solar collection
• Storm systems: The area is prone to thunderstorms during spring and summer months, bringing cloud cover and potential hail damage
• Snow accumulation: Winter weather can deposit snow on panels, blocking sunlight completely until melting occurs
• Pollen and debris: Heavy tree coverage in the region creates seasonal pollen loads and falling leaves that can coat panel surfaces

Preventative Installation Measures

To maximize energy production despite these challenges, several installation strategies prove effective. Positioning panels with adequate spacing allows for better air circulation and faster drying after morning fog or precipitation. Installing panels at the optimal 31-degree tilt helps snow slide off more readily and improves self-cleaning during rain events. Regular maintenance scheduling becomes particularly important, with panel cleaning recommended during peak pollen seasons in spring and after major storms. Consider installing monitoring systems to quickly identify production drops that may indicate debris accumulation or damage. Micro-inverters or power optimizers can help minimize the impact when individual panels experience shading or soiling, ensuring the entire system doesn't suffer from localized issues. Additionally, choosing panels with anti-reflective coatings and robust frames helps maintain performance in humid conditions while providing better protection against hail damage.

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 LaFollette

Seasonal solar PV output for Latitude: 36.4248, Longitude: -84.0907 (LaFollette, 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 LaFollette, United States

To maximize your solar PV system's energy output in LaFollette, United States (Lat/Long 36.4248, -84.0907) 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 LaFollette, 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 LaFollette, 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
20° South in Summer	41° South in Autumn	52° South in Winter	29° 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 LaFollette, 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 LaFollette, 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.

Topography for solar PV around LaFollette, United States

Topographical Features Around LaFollette

LaFollette sits in the heart of the Cumberland Mountains in northeastern Tennessee, where the Appalachian foothills create a landscape of rolling hills, steep ridges, and narrow valleys. The town itself occupies a relatively flat area along the Cove Creek valley, surrounded by forested mountains that rise several hundred feet above the valley floor. The terrain is characterized by the typical ridge-and-valley topography of the southern Appalachians, with parallel ridges running roughly northeast to southwest. The immediate area around LaFollette features a mix of agricultural bottomland, residential development, and heavily forested mountainsides. Norris Lake, created by the Tennessee Valley Authority dam system, adds significant water features to the landscape just south of town. The Cumberland River system has carved deep valleys through the region over millions of years, creating the characteristic steep-sided hollows and narrow floodplains that define much of eastern Tennessee's geography. Elevations in the area range from around 1,000 feet in the valleys to over 2,000 feet on the highest ridgetops. The terrain becomes increasingly rugged as one moves away from the main valley corridors, with dense hardwood and pine forests covering most of the steeper slopes. Rock outcroppings and sandstone cliffs are common features throughout the region.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around LaFollette would be the relatively flat agricultural areas and cleared bottomlands within the main valley systems. These areas offer the advantage of minimal grading requirements and easier access for construction and maintenance equipment. The floodplains along Cove Creek and other tributaries provide some of the flattest terrain in the region, though flood considerations would need to be evaluated for any installations in these areas. South-facing slopes with gentle gradients present excellent opportunities for solar development, particularly those that have been previously cleared for agriculture or timber harvesting. These locations can maximize solar exposure while avoiding the expense of extensive land clearing. Several areas of former strip-mining activity in the region have created large, relatively flat cleared areas that could be well-suited for solar installations, as the land has already been significantly modified and may have limited alternative uses. The ridgetops and upper slopes, while offering good solar exposure, present significant challenges due to steep terrain, limited road access, and the environmental sensitivity of these forested areas. The narrow valley bottoms, though flat, may experience shading issues from the surrounding mountains, particularly during winter months when the sun angle is lower. Areas near existing electrical infrastructure would be particularly advantageous, as the mountainous terrain can make transmission line construction expensive and environmentally disruptive. Properties adjacent to current agricultural operations or previously disturbed lands would likely face fewer regulatory hurdles and community concerns compared to pristine forested areas.

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!

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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.