Coward, South Carolina offers reasonably good conditions for solar energy generation throughout most of the year, though with notable seasonal variation typical of its Northern Sub-tropical climate.
Seasonal Solar Performance
The location shows strong solar energy production during spring and summer months, with spring actually delivering the highest output at 6.38 kWh per day per kW of installed solar capacity. Summer follows closely at 6.24 kWh per day, making these the prime seasons for solar generation. Autumn production drops to 4.51 kWh per day, while winter sees the lowest output at 2.90 kWh per day per kW installed. This seasonal pattern means that solar installations in Coward will generate approximately twice as much energy during peak months compared to winter, which is typical for locations at this latitude. For optimal year-round energy production, solar panels should be installed at a fixed tilt angle of 30 degrees facing south.Environmental and Weather Factors
Several factors in the Coward area could potentially impact solar energy production:- Humidity and moisture: The subtropical climate brings high humidity levels that can reduce panel efficiency and promote dust and pollen accumulation on panel surfaces
- Severe weather: The region experiences thunderstorms, potential hurricanes, and hail that could damage solar installations
- Tree coverage: South Carolina's abundant vegetation can create shading issues, particularly as trees grow over time
- Atmospheric haze: High humidity can create atmospheric haze that reduces solar irradiance reaching the panels
Preventative Measures for Better Performance
To maximize solar energy production despite these challenges, several installation strategies prove effective. Regular cleaning schedules become essential in this humid environment, with monthly panel washing recommended during peak pollen seasons in spring and summer. Installing panels with adequate spacing allows for better air circulation, helping reduce moisture buildup and improving cooling efficiency. Choosing high-quality mounting systems rated for hurricane-force winds ensures panels can withstand severe weather events common to the region. Micro-inverters or power optimizers can help minimize production losses when partial shading occurs from tree growth or passing clouds. Careful site selection remains crucial, with thorough evaluation of existing and potential future shading from vegetation. Professional tree trimming and strategic placement away from large trees that could grow to obstruct panels will maintain optimal sun exposure over the system's 25-year lifespan. Despite these considerations, Coward's location still provides favorable conditions for solar energy generation, particularly during the extended spring and summer seasons when energy demand for cooling is typically highest.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 Coward
Seasonal solar PV output for Latitude: 33.9732, Longitude: -79.747 (Coward, 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 Coward, United States
To maximize your solar PV system's energy output in Coward, United States (Lat/Long 33.9732, -79.747) 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 Coward, 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 Coward, 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 Coward, 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 Coward, 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 Coward, United States
Topographical Features Around Coward, South Carolina
The landscape surrounding Coward, South Carolina is characterized by the gently rolling terrain typical of the Atlantic Coastal Plain region. This small community sits in Florence County, where elevations remain relatively modest, generally ranging from 100 to 200 feet above sea level. The topography consists primarily of low hills interspersed with flat to gently sloping areas, creating a landscape that undulates softly rather than presenting dramatic elevation changes. The region features numerous small creeks and tributaries that have carved shallow valleys through the terrain over thousands of years. These waterways, including branches of the Great Pee Dee River system, create a network of gentle depressions and ridgelines that define much of the local topography. The soil composition includes sandy loams and clay deposits characteristic of the coastal plain, with areas of well-drained uplands alternating with lower-lying sections that may experience seasonal moisture retention. Agricultural land dominates much of the surrounding countryside, with fields of tobacco, soybeans, and corn occupying the flatter portions of the landscape. Forested areas, primarily consisting of pine plantations and mixed hardwood stands, cover the rolling hills and provide natural breaks in the otherwise open agricultural terrain. These wooded sections often occupy areas with steeper slopes or less suitable soils for farming.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations near Coward would be the extensive flat to gently sloping agricultural fields that characterize much of the surrounding area. These open spaces offer several advantages, including minimal shading from trees or structures, relatively easy access for construction and maintenance equipment, and existing cleared land that would require minimal site preparation. The elevated areas with southern-facing slopes present particularly attractive opportunities for solar development. These locations benefit from natural drainage, reducing concerns about water accumulation around solar equipment, while the slight southern orientation can enhance solar collection efficiency. The well-drained sandy soils found on many of these higher elevations also facilitate easier installation of ground-mounted solar arrays and associated infrastructure. Areas currently used for row crop agriculture would be especially well-suited for solar development, as the land is already cleared, relatively level, and typically has established access roads. The transition from agricultural use to solar installations often proves more straightforward than converting forested or wetland areas, both from environmental and economic perspectives. Large contiguous parcels of open land located away from the creek bottoms and wetland areas would be most desirable for utility-scale solar projects. These locations avoid potential environmental sensitivities while providing the space necessary for meaningful solar installations. The existing road network serving the agricultural community would also support the transportation needs associated with solar construction and ongoing operations.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: Tuesday 22nd of July 2025
Last Updated: Thursday 7th of August 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.




