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Flag of United StatesSolar PV Analysis of Roberta, United States

Graph of hourly avg kWh electricity output per kW of Solar PV installed in Roberta, United States (by season)

Roberta, Georgia, located in the Northern Sub Tropics, offers reasonably good conditions for year-round solar energy generation, though with notable seasonal variations that potential solar installers should understand.

Seasonal Solar Performance

The location shows strong solar production during the warmer months, with summer delivering 6.25 kWh per day per kW of installed solar capacity. Spring performs almost equally well at 6.20 kWh per day, making these the peak seasons for solar energy generation. Autumn drops to 4.60 kWh per day, while winter sees the lowest production at 2.90 kWh per day per kW installed. This seasonal pattern is typical for the region's latitude, with winter production dropping to less than half of summer levels. However, the location still maintains decent year-round viability, as even the winter months produce meaningful energy output.

Optimal Panel Installation

For maximum year-round energy production at this Roberta location, solar panels should be installed at a fixed tilt angle of 29 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's changing position throughout the year and weighting for actual solar irradiance data.

Environmental and Weather Factors

Several local factors in this Georgia location could potentially impact solar panel performance:
  • High humidity and frequent thunderstorms during summer months can reduce solar efficiency and create temporary power interruptions
  • Pollen accumulation from Georgia's abundant pine trees and other vegetation, particularly heavy during spring months
  • Occasional severe weather including hailstorms and high winds from thunderstorms
  • Spanish moss and tree growth common in the region that could create shading issues over time

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies can help:
  • Regular cleaning schedules during pollen season (typically March through May) to maintain panel efficiency
  • Proper spacing and positioning to avoid shading from existing or future tree growth
  • High-quality mounting systems designed to withstand wind loads and potential hail damage
  • Adequate drainage design to prevent water accumulation around panel installations
  • Professional site assessment to identify and trim back vegetation that might cause future shading problems
Overall, Roberta, Georgia represents a moderately good location for solar energy generation, with excellent spring and summer production offsetting the lower winter output. With proper installation techniques and maintenance practices, solar installations can perform well year-round at this location.

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 Roberta

Seasonal solar PV output for Latitude: 32.7218, Longitude: -84.0132 (Roberta, 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:

Summer
Average 6.25kWh/day in Summer.
Autumn
Average 4.60kWh/day in Autumn.
Winter
Average 2.90kWh/day in Winter.
Spring
Average 6.20kWh/day in Spring.

 

Ideally tilt fixed solar panels 29° South in Roberta, United States

To maximize your solar PV system's energy output in Roberta, United States (Lat/Long 32.7218, -84.0132) 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.

The sun
At Latitude: 32.7218, Longitude: -84.0132, the ideal angle to tilt panels is 29° South

Seasonally adjusted solar panel tilt angles for Roberta, 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 Roberta, 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 48° South in Winter 25° South in Spring

Assuming you can modify the tilt angle of your solar PV panels throughout the year, you can optimize your solar generation in Roberta, United States as follows: In Summer, set the angle of your panels to 17° facing South. In Autumn, tilt panels to 38° facing South for maximum generation. During Winter, adjust your solar panels to a 48° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 25° angle facing South to capture the most solar energy in Roberta, United States.

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 Roberta, 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 Roberta, 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.






Please enter information above to calculate panel spacing.

Topography for solar PV around Roberta, United States

Topographical Features Around Roberta, Georgia

The area surrounding Roberta, Georgia is characterized by gently rolling hills and relatively flat terrain typical of the Georgia Piedmont region. This location sits in the central part of the state where the landscape transitions from the more mountainous northern regions toward the flatter coastal plains to the south. The elevation changes are generally modest, creating a landscape of low ridges and shallow valleys that undulate across the countryside. The terrain consists primarily of clay-based soils with some sandy components, remnants of ancient geological formations that have been weathered over millions of years. Small creeks and streams meander through the area, creating minor drainage patterns that have carved gentle depressions in the landscape. These waterways typically flow in a southeasterly direction toward larger river systems. Agricultural land dominates much of the surrounding area, with fields that have been cleared and leveled over generations of farming. Pine forests are scattered throughout the region, often occupying areas with slightly steeper slopes or land that has been allowed to return to its natural state. The combination of farmland and forest creates a patchwork landscape with varying elevations that rarely exceed significant grades.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations around Roberta would be the existing agricultural fields and cleared areas that offer relatively flat terrain with minimal shading. These open spaces provide the necessary acreage for utility-scale projects while avoiding the need for extensive tree removal or major grading operations. Fields that face southward or have southern exposure across gently sloping terrain would be particularly advantageous for solar panel placement. The modest elevation changes in the area can actually benefit solar installations by providing natural drainage and preventing water accumulation around equipment. Areas with slight southern-facing slopes can enhance panel positioning for optimal sun exposure throughout the day. Former agricultural land that has been taken out of production presents excellent opportunities for solar development. These areas typically have existing road access for construction and maintenance vehicles, along with cleared sight lines that minimize shading concerns. The relatively stable soil conditions in much of the region can support the foundation requirements for solar mounting systems without requiring extensive ground preparation. Areas to avoid would include the steeper ridgelines, even though they are not particularly pronounced in this region, as well as low-lying areas near streams where flooding might occasionally occur. Heavily forested sections would require significant clearing costs and environmental considerations, making them less economically attractive for solar development compared to already-cleared agricultural or pasture land. The proximity to existing electrical infrastructure, including power lines that serve the rural agricultural community, provides additional advantages for connecting large solar installations to the electrical grid. Many of the flat agricultural areas near Roberta are already served by transmission lines that could potentially accommodate the output from utility-scale solar facilities.

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

Article: Solar PV Analysis of Roberta, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 18th of July 2025
Last Updated: Wednesday 6th 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.

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