Hiawassee, Georgia presents a moderately favorable location for year-round solar energy generation, though with notable seasonal variations that potential solar installers should understand before making investment decisions.
Seasonal Solar Performance
The solar energy output at this Northern Sub Tropics location varies significantly throughout the year. Summer delivers the strongest performance at 6.35 kWh per day per kW of installed capacity, making it the peak season for solar generation. Spring follows closely behind with 5.95 kWh per day per kW, representing excellent production levels that nearly match summer output. Autumn shows a moderate decline to 4.40 kWh per day per kW, which still provides reasonable energy generation. Winter presents the greatest challenge, dropping to just 2.86 kWh per day per kW - less than half the summer production rate. This dramatic seasonal swing means homeowners and businesses should plan for significantly reduced solar output during the coldest months.Optimal Panel Installation
For maximum year-round energy production at Hiawassee, solar panels should be installed at a fixed tilt angle of 31 degrees facing south. This specific angle has been calculated to optimize total annual output by accounting for the sun's changing position throughout the year and weighting the angles based on actual solar radiation data for this latitude.Local Factors Affecting Solar Production
Several environmental and weather factors in the Hiawassee area can impact solar panel performance and should be considered during installation planning. The region's mountainous terrain in North Georgia can create challenges with shading from nearby ridges and peaks, particularly during winter months when the sun travels lower across the southern sky. Before installation, conduct a thorough shade analysis throughout different times of day and seasons to identify any obstructions that could reduce panel efficiency. Weather patterns typical to this area include:- Frequent afternoon thunderstorms during summer months that can temporarily reduce solar output
- Occasional ice storms in winter that may coat panels and block sunlight
- Higher humidity levels that can affect panel efficiency
- Potential for severe weather including hail during spring storm seasons
Preventative Measures for Optimal Performance
Several installation strategies can help maximize solar energy production despite these local challenges:- Install panels with adequate spacing and ventilation to prevent overheating in humid conditions
- Choose mounting systems that allow for steeper panel angles to help ice and snow slide off more easily
- Select panels with anti-reflective coatings and robust weatherproofing for storm resistance
- Ensure easy access for cleaning and maintenance, particularly important in areas with high pollen counts
- Consider microinverters or power optimizers to minimize impact when individual panels are shaded
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 Hiawassee
Seasonal solar PV output for Latitude: 34.9493, Longitude: -83.7574 (Hiawassee, 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 31° South in Hiawassee, United States
To maximize your solar PV system's energy output in Hiawassee, United States (Lat/Long 34.9493, -83.7574) throughout the year, you should tilt your panels at an angle of 31° 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 Hiawassee, 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 Hiawassee, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 31° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 19° 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 Hiawassee, 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 Hiawassee, 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 Hiawassee, United States
Topographical Features of the Hiawassee Region
The area surrounding Hiawassee, Georgia sits nestled within the southern Appalachian Mountains, creating a landscape dominated by rolling hills, steep ridges, and narrow valleys. This mountainous terrain is characterized by elevations that range from approximately 1,900 feet near Lake Chatuge to peaks exceeding 4,000 feet in the surrounding ridgelines. The topography creates a series of undulating landforms with moderate to steep slopes throughout much of the region. Lake Chatuge forms a significant geographical feature in the immediate vicinity, with its shoreline creating numerous coves and peninsulas that add complexity to the local terrain. The lake's presence has modified the natural drainage patterns and created relatively flat areas along its banks, though these are often narrow and interspersed with steeper slopes leading up to the surrounding ridges. The mountain ridges generally run in a northeast-southwest orientation, following the typical grain of the Appalachian system. Between these ridges lie narrow valleys and hollows that drain toward various creeks and streams feeding into Lake Chatuge or the Hiawassee River system. The terrain shows evidence of significant weathering and erosion typical of ancient mountain systems, resulting in rounded peaks rather than sharp, angular summits.Slope Characteristics and Land Use Implications
Much of the terrain around Hiawassee exhibits slopes that range from moderate to steep, with many areas showing gradients of 15 to 30 degrees or more. The steepest slopes are typically found on the faces of ridges and along stream cuts, while gentler gradients occur on ridge tops and in some valley bottoms. This varied topography has historically influenced land use patterns, with flatter areas being utilized for agriculture and development while steeper slopes remain forested. The soil conditions vary considerably depending on slope position and aspect, with ridge tops and south-facing slopes often showing thinner, more weathered soils, while north-facing slopes and valley bottoms tend to have deeper, more fertile soils. Drainage patterns are well-established throughout the region, with numerous small streams and creeks creating additional topographical complexity through their associated valleys and floodplains.Optimal Areas for Large-Scale Solar Development
Large-scale solar photovoltaic installations in the Hiawassee area would be best suited to several specific types of terrain found within the broader region. The most promising locations would be the broader ridge tops and plateau areas that offer relatively flat or gently sloping terrain with good southern exposure. These elevated positions typically provide minimal shading from surrounding topography while offering sufficient space for extensive solar arrays. Valley floors and broader hollows present another category of potentially suitable terrain, particularly those with east-west orientations that allow for optimal solar panel positioning. However, these areas may experience more seasonal shading from surrounding ridges, particularly during winter months when the sun angle is lower. The trade-off between available flat space and potential shading issues would need careful evaluation on a site-by-site basis. Agricultural fields and cleared pastureland scattered throughout the region could provide excellent opportunities for solar development, as these areas have already been cleared and leveled to some degree. Many of these sites benefit from existing road access and proximity to electrical infrastructure, which are important considerations for large-scale installations. The areas immediately surrounding Lake Chatuge, while offering some flatter terrain, may face restrictions due to watershed protection requirements and scenic preservation concerns. However, some of the broader terraces and benches above the immediate shoreline could potentially accommodate solar installations while maintaining appropriate setbacks from the water body. For optimal large-scale solar development, the most suitable locations would likely be found on the gentler ridge systems to the east and southeast of Hiawassee, where the topography becomes somewhat less rugged and offers larger expanses of manageable terrain. These areas would provide good solar access while offering sufficient space for the infrastructure requirements of commercial-scale photovoltaic installations.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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Article Details for Citation
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 21st 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.




