Garland, North Carolina, located in the Northern Sub Tropics at coordinates 34.7863, -78.3942, offers varying potential for solar energy generation throughout the year. This location experiences significant seasonal fluctuations in solar production that are important to consider when planning a photovoltaic (PV) system.

Seasonal Solar Production

The solar energy potential in Garland follows a predictable seasonal pattern. Summer months yield the highest production at 6.43kWh per day for each kilowatt of installed capacity. Spring follows closely with 6.08kWh/day per kW. Autumn production drops to 4.47kWh/day per kW, while winter sees the lowest output at just 2.84kWh/day per kW.

This seasonal variation means that a solar PV system in Garland will produce more than twice as much electricity in summer compared to winter months. The substantial spring and summer production makes this location quite favorable for solar energy generation during the warmer half of the year.

Optimal Panel Installation

For fixed solar panel installations in Garland, the ideal tilt angle to maximize year-round energy production is 30 degrees facing South. This angle optimizes the balance between summer and winter sun exposure, accounting for the sun's changing position throughout the year.

Environmental Considerations

Several environmental factors could potentially impact solar production in Garland:

• Hurricane risk: North Carolina's coastal proximity means Garland can experience hurricanes and tropical storms that may damage solar installations or reduce production during storm events.
• High humidity and precipitation: The subtropical climate brings periods of high humidity and rainfall that can temporarily reduce solar efficiency.
• Pollen and agricultural dust: Being in a rural agricultural region, seasonal pollen and dust can accumulate on panels, reducing their effectiveness.

Preventative Measures

To maximize solar production despite these challenges, several preventative measures are recommended:

Installing hurricane-rated mounting systems with reinforced foundations can protect panels during severe weather events. Regular cleaning schedules should be implemented, particularly during pollen season and after storms. Additionally, micro-inverter or power optimizer technology can help minimize production losses when some panels are partially shaded or soiled.

Automated cleaning systems or hydrophobic panel coatings can reduce maintenance needs in this humid environment. Finally, selecting panels with good high-temperature performance is advisable, as summer heat can slightly reduce panel efficiency during the most productive months.

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 Garland, North Carolina

Seasonal solar PV output for Latitude: 34.7863, Longitude: -78.3942 (Garland, North 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 30° South in Garland, North Carolina, United States

To maximize your solar PV system's energy output in Garland, North Carolina, United States (Lat/Long 34.7863, -78.3942) 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 Garland, North 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 Garland, North Carolina, 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
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 Garland, North 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 Garland, North Carolina, 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 Garland, North Carolina, United States

The area around Garland, North Carolina, is characterized by a gentle, coastal plain topography typical of the southeastern United States. Located in Sampson County in the eastern part of North Carolina, Garland sits in a region with minimal elevation changes and predominantly flat terrain. The landscape features subtle rolling hills with elevation differences generally less than 100 feet across substantial distances. This area is part of the broader Atlantic Coastal Plain, which extends from the Piedmont region eastward to the Atlantic Ocean. The topographical profile around Garland consists mainly of flat to gently undulating agricultural lands interspersed with patches of forest. Small streams and drainage channels cross the landscape, eventually feeding into larger river systems like the nearby Black River. These waterways have carved shallow valleys into the otherwise level terrain. The soil composition is primarily sandy loam, a legacy of the region's geological history when it was once covered by ancient seas.

Solar PV Potential in Surrounding Areas

Several areas near Garland present favorable conditions for large-scale solar photovoltaic installations. The most suitable locations would be the extensive agricultural fields that dominate the landscape east and southeast of Garland. These areas benefit from minimal topographical variation, which reduces construction complexity and shading concerns that can affect solar panel efficiency. The flat, open farmlands between Garland and nearby communities like Harrells and Ingold offer particular promise. These agricultural spaces typically have already been cleared of trees, minimizing the environmental impact and site preparation costs for solar development. Additionally, the existing network of rural roads provides accessibility for construction and maintenance of solar facilities. Areas with slight southern-facing slopes, though subtle in this relatively flat region, would be marginally more advantageous for solar collection efficiency. The regions northwest of Garland toward Clinton and southwest toward Elizabethtown also contain substantial tracts of level terrain that could accommodate large solar arrays. It's worth noting that while wetland areas are common in this part of North Carolina, particularly along stream corridors, these should be avoided for solar development due to environmental sensitivity and potential flooding issues. The optimal sites would be the higher, well-drained agricultural lands that are abundant throughout Sampson County. The agricultural character of the region means that large, contiguous parcels of land are potentially available for development, which is particularly advantageous for utility-scale solar projects that require significant acreage. The minimal relief across the landscape also reduces concerns about terrain-related shading that can decrease solar panel productivity in more mountainous regions.

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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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.