Solar Energy Potential in Sumter, South Carolina

Sumter, South Carolina, located in the Northern Sub Tropics at coordinates 33.9133, -80.3587, offers a moderately favorable environment for solar PV energy generation throughout the year. The location experiences significant seasonal variations in solar energy production that potential solar adopters should consider. The seasonal breakdown of electricity output shows that summer and spring are the most productive periods, with daily averages of 6.42kWh and 6.30kWh respectively per kilowatt of installed capacity. These seasons provide excellent solar harvesting opportunities due to longer days and more direct sunlight. Autumn follows with a respectable 4.51kWh/day, while winter shows the most significant drop to 2.86kWh/day per kilowatt installed. For those considering solar installation in Sumter, it's important to note that fixed solar panels should be tilted at 30 degrees facing South to maximize year-round energy production. This specific angle has been calculated to optimize solar capture throughout the changing seasons, accounting for the Earth's elliptical orbit and the location's specific latitude.

Environmental and Weather Considerations

Several environmental factors could impact solar production in Sumter that potential installers should address:

• Hurricane and severe storm risk: Sumter, while inland, can experience effects from Atlantic hurricanes and severe thunderstorms. Solar installations should use hurricane-rated mounting systems and panels that can withstand high winds and potential debris impact.
• High humidity and precipitation: The subtropical climate brings periods of high humidity and rainfall that may reduce efficiency and cause moisture-related issues. Proper waterproofing and ventilation of electrical components is essential.
• Tree coverage and shading: The region's abundant vegetation can create shading issues. A thorough site assessment to identify potential shading throughout the year is recommended, along with strategic tree trimming where necessary.
• Pollen and dust accumulation: Seasonal pollen from the region's abundant vegetation, along with dust, can reduce panel efficiency. Regular cleaning schedules or self-cleaning panel technologies can help mitigate this issue.

Despite these challenges, with proper system design and preventative measures, Sumter remains a viable location for solar energy production, particularly during the spring and summer months when output is highest. The substantial difference between winter and summer production suggests that homeowners might benefit from grid connection to supplement energy needs during lower-production winter 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 Sumter

Seasonal solar PV output for Latitude: 33.9133, Longitude: -80.3587 (Sumter, 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 Sumter, United States

To maximize your solar PV system's energy output in Sumter, United States (Lat/Long 33.9133, -80.3587) 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 Sumter, 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 Sumter, 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	39° South in Autumn	49° South in Winter	26° 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 Sumter, 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 Sumter, 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 Sumter, United States

The topography around Sumter, South Carolina is characterized by a gently rolling landscape typical of the Southeastern United States' inner coastal plain region. Situated approximately 100 miles from the Atlantic Ocean, Sumter lies in what geographers call the Atlantic Coastal Plain, specifically in the transition zone between the Middle and Lower Coastal Plain. This area features modest elevation changes, with the terrain generally ranging between 150 and 250 feet above sea level. The landscape surrounding Sumter is predominantly flat to gently undulating, with occasional low hills and shallow depressions. The area is intersected by several waterways, including the Pocotaligo River and Turkey Creek, which have carved subtle valleys into the otherwise level terrain. These waterways form part of the broader Santee River basin drainage system.

Soil and Natural Features

The soils around Sumter are primarily sandy loams and clay loams, developed from marine sediments deposited millions of years ago when the ocean covered this region. These well-drained soils support the area's mixed pine and hardwood forests, agricultural fields, and urban development. Natural vegetation in undeveloped areas consists of loblolly and longleaf pine forests interspersed with oak, hickory, and sweetgum trees. Wetland areas, particularly along stream corridors, feature cypress, tupelo, and various water-tolerant hardwood species.

Potential for Solar PV Development

For large-scale solar photovoltaic (PV) installations, several areas around Sumter offer favorable conditions. The relatively flat terrain east and southeast of the city presents fewer challenges for construction and optimal panel orientation. These areas, particularly along the Highway 378 and Highway 76/301 corridors, feature extensive agricultural lands and open spaces that could be suitable for solar development. The northwestern portions of Sumter County also contain significant tracts of level land currently used for agriculture or forestry that could be repurposed for solar installations. These areas benefit from minimal topographical constraints that would otherwise increase construction costs.

Topographical Considerations for Solar Development

When evaluating specific sites for solar PV installations near Sumter, several topographical factors merit consideration: The gentle slopes found throughout the region generally face south, southeast, or southwest—orientations that maximize solar exposure in the Northern Hemisphere. Areas with southern exposure would be particularly advantageous for fixed-tilt solar arrays. The modest elevation changes minimize concerns about hillside erosion during construction and operation of solar facilities. This relatively flat terrain also reduces the need for extensive grading, which can significantly impact project economics. Areas to potentially avoid include the floodplains along the Pocotaligo River and other waterways, as these locations face periodic flooding risks. Similarly, isolated wetland depressions scattered throughout the region would present permitting challenges and increased development costs.

Land Use Patterns

The land use patterns around Sumter also influence solar development potential. The region features a mix of urban development, suburban residential areas, agricultural land, and managed forest plantations. The most promising locations for large-scale solar development would be on existing agricultural lands or managed timberlands that offer large, contiguous parcels with minimal fragmentation. Several areas of former agricultural land that have been left fallow or are currently in low-intensity use could provide opportunities for solar development with minimal disruption to productive agricultural operations. These transitional lands often combine favorable topography with proximity to existing electrical infrastructure.

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.