Clemson, South Carolina, located in the Northern Sub Tropics at coordinates 34.6805, -82.8231, offers a reasonably good location for solar PV energy generation throughout the year, though with notable seasonal variations. The region experiences strong solar production during summer months with an average of 6.59kWh per day per kW of installed capacity, followed closely by spring with 6.13kWh/day.

Autumn sees a moderate decline in production, generating 4.42kWh/day, while winter represents the lowest period with only 2.86kWh/day per kW of installed capacity. This significant seasonal difference means that solar production in summer is more than double that of winter months.

Optimal Panel Positioning

For fixed panel installations at this Clemson location, the ideal angle to maximize year-round solar production is 30 degrees facing South. This specific tilt optimizes the annual energy harvest by balancing seasonal variations in the sun's position throughout the year.

Environmental and Weather Considerations

Several environmental factors in Clemson may affect solar production. The region experiences relatively high humidity and rainfall throughout the year, which can temporarily reduce solar efficiency. Summer thunderstorms, while brief, can significantly impact daily production during what would otherwise be peak generation months.

Tree coverage is another consideration in this heavily forested region. Clemson's lush vegetation can create shading issues for solar installations if not properly accounted for during system design and placement.

Preventative Measures

To maximize solar production in Clemson, several preventative measures are recommended:

• Regular panel cleaning to remove pollen deposits, which are particularly heavy during spring in this region
• Strategic tree trimming or placement of panels away from potential shade sources
• Installing microinverters or power optimizers to minimize the impact of partial shading
• Considering slightly west-facing orientation to capture more afternoon sun when morning fog or humidity has burned off

With proper installation accounting for these local factors, Clemson residents can expect good solar production, particularly from March through October, with the May-August period representing the peak production season.

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 Clemson

Seasonal solar PV output for Latitude: 34.6805, Longitude: -82.8231 (Clemson, 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 30° South in Clemson, United States

To maximize your solar PV system's energy output in Clemson, United States (Lat/Long 34.6805, -82.8231) throughout the year, you should tilt your panels at an angle of 30° 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 Clemson, 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 Clemson, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° South tilt angle throughout the year.

Overall Best Summer Angle	Overall Best Autumn Angle	Overall Best Winter Angle	Overall Best Spring Angle
18° South in Summer	40° South in Autumn	50° South in Winter	27° 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 Clemson, 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 Clemson, 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 Clemson, United States

The topography around Clemson, South Carolina presents a diverse landscape characterized by gentle rolling hills transitioning to more pronounced elevations as one moves westward toward the Blue Ridge Mountains. Situated in the northwestern part of South Carolina in the Piedmont region, Clemson sits at an elevation of approximately 800 feet above sea level. The area features a blend of plateaus, valleys, and undulating terrain shaped by millions of years of erosion from the ancient Appalachian Mountains. The Clemson area is nestled near Lake Hartwell, a large reservoir that significantly influences the local topography. This man-made lake, created by the damming of the Savannah River, has formed numerous inlets, peninsulas, and waterfront areas that characterize much of the immediate landscape. The shoreline creates a varied topographical profile with both gradual and steep approaches to the water.

Surrounding Terrain Features

Moving outward from Clemson, the terrain becomes increasingly varied. To the west, the land gradually rises toward the foothills of the Blue Ridge Mountains, with more pronounced hills and valleys. This transition zone between the Piedmont and the Blue Ridge is known for its scenic vistas and more dramatic elevation changes. Numerous streams and small rivers cut through the landscape, creating natural drainage patterns that have further sculpted the terrain over time. To the east and south, the topography becomes somewhat gentler, with rolling hills that are typical of the Piedmont region. These areas feature a mix of open fields, forested sections, and agricultural land. The soil composition transitions from the clay-rich red soils characteristic of the Piedmont to more diverse compositions influenced by the weathering of different rock types.

Potential Areas for Solar PV Development

For large-scale solar photovoltaic (PV) installations, several factors related to topography must be considered, including slope orientation, elevation, and shading potential. In the Clemson region, the most suitable areas would typically be: The gently sloping fields and plateaus to the east and southeast of Clemson offer favorable conditions for solar development. These areas benefit from relatively flat terrain that reduces construction costs and maximizes exposure to sunlight throughout the day. The reduced elevation also typically means fewer fog days compared to higher elevations. Former agricultural lands around the broader Anderson County area present opportunities for solar development, as they often feature cleared, south-facing gentle slopes ideal for maximizing solar gain. These areas typically have existing access roads and are often already connected to utility infrastructure. Some of the higher plateaus in the transition zone between the Piedmont and Blue Ridge foothills could also be suitable, particularly those with southern exposures. While these areas may require more site preparation due to varying slopes, they often have reduced competition for land use compared to more fertile valley bottoms. Areas to avoid would include the steeper slopes of the western foothills, densely forested sections that would require significant clearing, and the flood-prone areas near Lake Hartwell and its tributary streams. The more rugged terrain northwest of Clemson would present challenges for construction and optimal panel orientation, making these areas less economically viable for large-scale solar development. The moderately elevated areas that avoid both the higher mountain shadows to the west and the potential morning fog in the lower valleys represent an ideal compromise for solar PV deployment in this region's varied topography.

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.