Georgetown, South Carolina offers reasonably good conditions for solar energy generation, though it experiences significant seasonal variation typical of locations in the Northern Sub Tropics at latitude 33.4308, -79.3235.
Seasonal Solar Performance
The location shows strong performance during spring and summer months, with spring being the peak season at 6.38kWh per day per kW of installed solar capacity. Summer follows closely at 6.24kWh per day per kW. However, winter production drops substantially to just 2.90kWh per day per kW, while autumn provides moderate output at 4.51kWh per day per kW. This seasonal pattern means Georgetown receives its best solar energy production from March through August, with particularly excellent conditions in spring when cooler temperatures help panel efficiency while daylight hours increase. Winter months from December through February represent the least productive period for solar generation.Optimal Panel Installation
For maximum year-round energy production at this Georgetown location, solar panels should be installed at a fixed tilt angle of 29 degrees facing south. This angle has been calculated using weighted daily solar elevation angles and NASA solar irradiance data to optimize total annual output.Environmental and Weather Challenges
Several local factors in Georgetown can impact solar energy production:- High humidity and frequent summer thunderstorms typical of coastal South Carolina
- Potential for tropical storms and hurricanes during Atlantic hurricane season
- Salt air corrosion due to proximity to the Atlantic Ocean
- Heavy cloud cover during winter months and storm systems
Preventative Measures for Better Performance
To maximize solar production despite these challenges, several installation strategies prove effective:- Use marine-grade mounting hardware and corrosion-resistant materials to combat salt air
- Install panels with enhanced wind ratings and secure mounting systems for hurricane resistance
- Ensure proper drainage and ventilation to handle high humidity conditions
- Plan for regular cleaning to remove salt deposits and storm debris
- Consider microinverters or power optimizers to minimize impact of partial shading from passing clouds
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 Georgetown, South Carolina
Seasonal solar PV output for Latitude: 33.4308, Longitude: -79.3235 (Georgetown, South Carolina, 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 29° South in Georgetown, South Carolina, United States
To maximize your solar PV system's energy output in Georgetown, South Carolina, United States (Lat/Long 33.4308, -79.3235) throughout the year, you should tilt your panels at an angle of 29° 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 Georgetown, South Carolina, 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 Georgetown, South Carolina, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 17° South in Summer | 38° 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 Georgetown, South Carolina, 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 Georgetown, South Carolina, 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 Georgetown, South Carolina, United States
Georgetown sits in the coastal plain region of South Carolina, characterized by relatively flat terrain with gentle rolling hills and extensive wetlands. The landscape around this historic town is dominated by low-lying areas that rarely exceed 50 feet above sea level, creating a predominantly level topography that extends inland from the Atlantic coast. The region features a complex network of rivers, including the Sampit River, Pee Dee River, and Waccamaw River, which converge near Georgetown before flowing into Winyah Bay. These waterways have carved shallow valleys through the coastal plain over millennia, creating a patchwork of slightly elevated ridges separated by broad floodplains and marshlands. The soil composition consists primarily of sandy loam and clay deposits left behind by ancient marine environments and river systems.
Terrain Characteristics
The topography immediately surrounding Georgetown is remarkably uniform, with elevation changes typically occurring gradually over long distances. Most of the land lies between sea level and 30 feet in elevation, with occasional rises reaching 40 to 60 feet above sea level on the higher ground between river valleys. These subtle elevation changes create natural drainage patterns that direct water flow toward the numerous creeks and rivers threading through the landscape. Dense forests of loblolly pine, live oak, and cypress trees cover much of the undeveloped land, particularly in areas with poor drainage or frequent flooding. Agricultural fields and pastureland occupy the better-drained soils on slightly elevated ground, while extensive salt marshes and freshwater wetlands dominate the lower-lying areas closer to the coast and major rivers.Optimal Areas for Large-Scale Solar Development
The most suitable locations for extensive solar photovoltaic installations lie on the gently elevated ridges and plateaus scattered throughout the inland areas west and northwest of Georgetown. These locations offer several advantages, including stable, well-drained soils that can support heavy equipment and infrastructure while remaining above the flood-prone zones that characterize much of the coastal plain. The agricultural areas extending inland from Georgetown present particularly attractive opportunities for solar development. These cleared or lightly wooded tracts typically occupy the highest and most stable ground in the region, with elevations ranging from 20 to 60 feet above sea level. The existing cleared land reduces initial development costs while the slightly elevated position provides natural drainage and protection from flooding events. Areas along the higher ground between the Pee Dee and Waccamaw River valleys offer extensive tracts of relatively flat terrain suitable for large solar arrays. The gentle slopes in these locations facilitate proper drainage while maintaining the level conditions necessary for efficient solar panel installation and maintenance access. The region southwest of Georgetown, extending toward the Santee River basin, contains some of the most promising terrain for utility-scale solar development. This area features broader expanses of elevated, well-drained land with fewer wetland constraints and existing transportation infrastructure that could support large-scale construction and ongoing operations. Conversely, the extensive wetlands, floodplains, and areas within a few miles of the coast present significant challenges for solar development due to flooding risks, environmental regulations, and unstable soils. The immediate vicinity of Georgetown itself, while relatively flat, contains numerous protected wetlands and historic areas that would limit large-scale industrial development opportunities.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: Saturday 19th of July 2025
Last Updated: Thursday 7th of August 2025
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Compare this location to others worldwide for solar PV potential
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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.




