Solar Energy Generation in Lumberton, North Carolina
Lumberton, North Carolina, located in the Northern Sub Tropics at coordinates 34.6258, -79.0015, offers a moderately favorable location for solar PV energy generation throughout the year, though with notable seasonal variations. The solar energy output in Lumberton follows distinct seasonal patterns. Summer presents the most productive period, with panels generating approximately 6.49kWh per day for each kilowatt installed. Spring follows closely behind with 6.11kWh/day, making these warmer months ideal for maximum solar production. Autumn yields a moderate 4.46kWh/day, while winter shows the lowest output at just 2.82kWh/day per installed kilowatt. For residents considering solar installation in Lumberton, the optimal configuration for fixed panel systems involves tilting panels at 30 degrees facing South. This specific angle maximizes year-round energy production by optimally capturing sunlight throughout the changing seasons.Environmental Considerations
Several environmental factors in Lumberton can potentially impact solar energy production:- Hurricane exposure: Lumberton's proximity to the Atlantic coast makes it vulnerable to seasonal hurricanes and tropical storms, which can damage solar installations or reduce efficiency through extended cloud cover during storm seasons.
- Humidity and precipitation: The region's subtropical climate brings significant humidity and rainfall, which can temporarily reduce panel efficiency and potentially accelerate weathering of system components.
- Pollen and agricultural dust: During spring and fall, local agriculture and natural vegetation produce airborne particles that can accumulate on panels, reducing their effectiveness.
Preventative Measures
To maximize solar production despite these challenges, consider implementing these protective measures when installing solar PV systems in Lumberton: Install hurricane-rated mounting systems designed to withstand high winds, with panels that can be temporarily secured or removed during extreme weather events. Regular cleaning schedules, possibly including automated cleaning systems, can address pollen and dust accumulation. Additionally, selecting panels with anti-soiling glass coatings will help maintain efficiency in this humid environment. Microinverter or power optimizer systems can help minimize production losses when some panels are partially shaded or affected by debris. Finally, incorporating a modest system oversizing (10-15% above needed capacity) can help compensate for the significant winter production drop, ensuring more consistent power availability throughout the year.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 Lumberton, North Carolina
Seasonal solar PV output for Latitude: 34.6258, Longitude: -79.0015 (Lumberton, 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 Lumberton, North Carolina, United States
To maximize your solar PV system's energy output in Lumberton, North Carolina, United States (Lat/Long 34.6258, -79.0015) 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 Lumberton, 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 Lumberton, 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 |
|---|---|---|---|
| 18° 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 Lumberton, 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 Lumberton, North 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 Lumberton, North Carolina, United States
The topography around Lumberton, North Carolina, is characterized by relatively flat terrain typical of the Coastal Plain region of the southeastern United States. Situated in Robeson County, Lumberton lies within what geographers call the Inner Coastal Plain, with an elevation of approximately 130 feet (40 meters) above sea level. The landscape features gentle slopes and minimal elevation changes across much of the area. The Lumber River, a blackwater river designated as a National Wild and Scenic River, meanders through the city and surrounding areas, creating small valleys and floodplains. This river system has shaped the local topography over millennia, creating subtle variations in elevation near its banks and tributaries. The river's floodplain introduces some of the only significant topographical variations in an otherwise flat region.
Soil and Land Characteristics
The soils around Lumberton are predominantly sandy loams and sandy clay loams, reflecting the area's geological history as an ancient seabed. These soils drain reasonably well in most locations, though some lower-lying areas near the river and in natural depressions can retain moisture for longer periods. The broader region includes a mixture of agricultural land, pine forests, and wetland areas. Many of the flat, open areas that were historically used for agriculture represent cleared sections of what was once extensive forest cover throughout the region.Optimal Areas for Solar PV Development
For large-scale solar photovoltaic (PV) installations, the areas most suitable near Lumberton would be the extensive flat agricultural lands that surround the city, particularly to the east and south. These locations offer several advantages: The flat terrain minimizes site preparation costs and engineering challenges that would be present in more varied topography. Agricultural lands that are already cleared eliminate the need for extensive tree removal or vegetation management, reducing both initial installation costs and environmental impact. Areas slightly elevated from the Lumber River floodplain would be preferable to minimize flood risk to solar infrastructure. The eastern portions of Robeson County, extending toward neighboring counties like Bladen and Cumberland, contain substantial tracts of level terrain ideal for solar development.Topographical Considerations for Solar Development
When evaluating specific sites for solar PV installations in the Lumberton area, developers should consider several topography-related factors. Even in this relatively flat region, minor variations in elevation can affect drainage patterns during heavy rainfall events, a significant consideration given the area's vulnerability to tropical storms and hurricanes. South-facing gentle slopes, where they exist, would offer optimal orientation for solar panels, though the predominantly flat terrain means that most installations would rely on mounting systems rather than natural topography for ideal panel angles. Areas to potentially avoid include wetlands associated with the Lumber River system, which serve important ecological functions and may be subject to regulatory protections. Additionally, low-lying areas with poor drainage or those within designated flood zones would present higher risks for infrastructure damage. The combination of abundant flat land, reasonable proximity to existing electrical infrastructure, and minimal topographical barriers makes the broader Lumberton region generally favorable for solar energy development compared to many other parts of North Carolina.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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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Sunday 4th of May 2025
Last Updated: Monday 21st of July 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.




