Shelby, North Carolina, located in the Northern Temperate Zone, offers a reasonably good location for solar PV energy generation throughout the year. With coordinates of 35.3135° N latitude and 81.5599° W longitude, this location experiences varying levels of solar energy production across different seasons.

Seasonal Solar Energy Production

Solar energy production in Shelby fluctuates significantly throughout the year. Summer proves to be the most productive season, with an average daily output of 6.58 kWh per kW of installed solar capacity. Spring follows closely behind, generating 5.99 kWh/day. Autumn sees a moderate decrease in production, yielding 4.47 kWh/day. Winter experiences the lowest output, with 2.87 kWh/day.

Optimal Times for Solar Generation

The most ideal period for solar energy production in Shelby spans from late spring through early fall. During these months, longer daylight hours and higher sun angles contribute to increased solar panel efficiency. However, even during the less productive winter months, solar panels can still generate a meaningful amount of electricity, especially on clear, sunny days.

Panel Tilt Angle for Maximum Efficiency

For fixed panel installations in Shelby, the optimal tilt angle to maximize year-round solar production is 31 degrees facing south. This angle helps balance energy production across seasons, capturing more sunlight during winter months when the sun's path is lower in the sky, while still performing well during summer.

Environmental and Weather Considerations

While Shelby generally offers favorable conditions for solar energy production, there are a few factors to consider:

1. Occasional severe weather: Shelby can experience thunderstorms and occasional hurricanes, which may temporarily reduce solar output.
2. Tree cover: The region's abundant vegetation could potentially shade solar panels, reducing their efficiency.

To mitigate these factors, consider installing panels on elevated structures to avoid shading from trees and vegetation. Additionally, using durable, weather-resistant panels and mounting systems can help protect against severe weather events. Regular maintenance, including cleaning panels and trimming nearby trees, can also help ensure optimal energy production throughout the year.

Overall, Shelby's location provides a good balance of solar potential across seasons, making it a suitable site for solar PV installations with proper planning and maintenance.

Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° 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 Shelby

Seasonal solar PV output for Latitude: 35.3135, Longitude: -81.5599 (Shelby, 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 Shelby, United States

To maximize your solar PV system's energy output in Shelby, United States (Lat/Long 35.3135, -81.5599) 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 Shelby, 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 Shelby, 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	28° 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 Shelby, 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 Shelby, 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 Shelby, United States

The area around Shelby, North Carolina, is characterized by gently rolling hills and valleys typical of the Piedmont region. This transitional zone between the flat coastal plain to the east and the rugged Appalachian Mountains to the west features a diverse landscape of low ridges, shallow valleys, and meandering streams. The topography in and around Shelby is generally mild, with elevations ranging from about 700 to 1,000 feet above sea level. The land is punctuated by occasional small hills and knolls, creating a subtly undulating terrain. The region's geology is primarily composed of ancient metamorphic and igneous rocks, which have weathered over millions of years to form the current landscape.

Notable Topographic Features

To the west of Shelby, the terrain gradually becomes more pronounced as it approaches the foothills of the Blue Ridge Mountains. Here, you'll find slightly steeper slopes and higher elevations. The South Mountains, a small mountain range, lies about 20 miles northwest of Shelby, offering a more dramatic change in elevation. To the east and south of Shelby, the land tends to be flatter, with broader valleys and gentler slopes. This area is part of the Carolina Piedmont, which extends across much of central North Carolina and into South Carolina.

Suitability for Large-Scale Solar PV

When considering areas near Shelby for large-scale solar photovoltaic (PV) installations, several factors come into play. The most suitable locations would typically be: 1. Relatively flat or gently sloping land to the east and south of Shelby. These areas offer the advantage of easier construction and installation of solar panels, as well as potentially better sun exposure throughout the day. 2. Former agricultural lands or brownfield sites that are no longer in use. These areas often provide large, open spaces ideal for solar farms without the need for extensive land clearing. 3. Areas with good road access but away from densely populated regions. This balance allows for easier transportation of materials and maintenance while minimizing visual impact on residential areas. 4. Locations near existing electrical infrastructure to facilitate grid connection. The presence of power lines and substations can significantly reduce the cost of connecting a solar farm to the electrical grid. It's important to note that while the topography around Shelby is generally favorable for solar PV installations, site-specific assessments would be necessary to determine the most optimal locations. Factors such as local zoning regulations, environmental considerations, and community acceptance would also play crucial roles in selecting suitable sites for large-scale solar projects in the region.

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

Tell Us About Your Work

We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.

Feeling generous?

Share this with your friends!

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.