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Flag of United StatesSolar PV Analysis of Louisburg, United States

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

Louisburg, North Carolina offers reasonably good conditions for solar energy generation throughout the year, though with notable seasonal variations typical of its Northern Temperate Zone location.

Seasonal Solar Performance

The solar energy output at this location shows strong seasonal patterns. Summer provides the highest energy production at 6.63 kWh per day per kW of installed solar capacity, making it the peak season for solar generation. Spring follows closely behind with 5.94 kWh per day, representing excellent production levels. Autumn sees a moderate decline to 4.25 kWh per day, while winter drops significantly to 2.66 kWh per day per kW installed. This winter reduction is typical for locations at this latitude, where shorter days and lower sun angles reduce solar energy availability.

Optimal Installation Setup

For maximum year-round solar production at Louisburg, solar panels should be installed at a fixed tilt angle of 31 degrees facing south. This angle has been calculated to optimize total annual energy output by accounting for the sun's changing position throughout the year and weighting for the varying solar energy potential across all seasons.

Local Factors Affecting Solar Production

Several environmental and weather factors in the Louisburg area can impact solar panel performance:
  • High humidity and frequent summer thunderstorms can reduce solar output and create safety concerns during installation and maintenance
  • Pollen from the region's abundant pine trees and other vegetation can accumulate on panels, particularly during spring months
  • Occasional ice storms and snow in winter can temporarily block panels
  • The area's mature tree canopy may create shading issues depending on installation location

Preventative Measures for Better Performance

To maximize solar energy production despite these challenges, several installation strategies can help: Installing panels with adequate spacing allows for better air circulation, reducing moisture buildup and helping panels stay cooler during humid summer months. A regular cleaning schedule, particularly during pollen season in spring, will maintain optimal light transmission to the solar cells. Proper site selection away from large trees or with strategic tree trimming can minimize shading throughout the day. Installing panels with a slight tilt helps snow and ice slide off more easily during winter weather events. Using high-quality mounting systems designed for the region's weather patterns, including occasional severe storms, ensures long-term stability and performance. Additionally, installing monitoring systems helps identify when panels need cleaning or when weather events have affected performance. Overall, Louisburg represents a moderately favorable location for solar energy, with strong summer and spring production offsetting the lower winter output typical of this latitude.

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 Louisburg

Seasonal solar PV output for Latitude: 36.099, Longitude: -78.3011 (Louisburg, 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 6.63kWh/day in Summer.
Autumn
Average 4.25kWh/day in Autumn.
Winter
Average 2.66kWh/day in Winter.
Spring
Average 5.94kWh/day in Spring.

 

Ideally tilt fixed solar panels 31° South in Louisburg, United States

To maximize your solar PV system's energy output in Louisburg, United States (Lat/Long 36.099, -78.3011) 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.

The sun
At Latitude: 36.099, Longitude: -78.3011, the ideal angle to tilt panels is 31° South

Seasonally adjusted solar panel tilt angles for Louisburg, 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 Louisburg, 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
20° South in Summer 41° South in Autumn 51° South in Winter 29° 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 Louisburg, United States as follows: In Summer, set the angle of your panels to 20° facing South. In Autumn, tilt panels to 41° facing South for maximum generation. During Winter, adjust your solar panels to a 51° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 29° angle facing South to capture the most solar energy in Louisburg, 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 Louisburg, 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 Louisburg, 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 Louisburg, United States

Topographical Features of the Louisburg Region

Louisburg, North Carolina sits within the gently rolling landscape of the North Carolina Piedmont region, characterized by moderately undulating terrain that transitions between the coastal plain to the east and the Appalachian foothills to the west. The area features a mix of low hills, shallow valleys, and relatively flat plateaus that create a varied but manageable topographical profile for development projects.

The elevation around Louisburg typically ranges from approximately 300 to 500 feet above sea level, with the terrain showing gradual changes rather than steep inclines or dramatic elevation shifts. This moderate topography is punctuated by numerous small creeks and streams that have carved gentle valleys through the landscape over time. The Tar River system influences much of the local drainage patterns, creating fertile bottomlands interspersed with higher, well-drained ridges.

Much of the surrounding countryside consists of agricultural land that has been cleared and maintained for farming operations, particularly tobacco, corn, and soybean cultivation. These cleared areas often feature gentle slopes that rarely exceed 10-15 degrees, making them highly suitable for various types of development. Between the agricultural zones, patches of mixed hardwood and pine forests cover the steeper slopes and areas less suitable for farming.

Optimal Areas for Large-Scale Solar Development

The most promising locations for large-scale solar photovoltaic installations around Louisburg would be the existing agricultural fields and cleared pastureland that dot the landscape. These areas offer several key advantages, including relatively flat to gently sloping terrain that minimizes grading costs and reduces shading issues between solar panel rows. The open nature of these spaces also provides excellent southern exposure with minimal obstruction from trees or buildings.

The higher elevation ridges and plateaus in the region present particularly attractive opportunities for solar development. These elevated areas typically experience better air circulation, which can help maintain optimal operating temperatures for solar panels, while their prominence in the landscape reduces the likelihood of shading from surrounding vegetation or structures. Many of these ridge areas have already been partially or completely cleared for agricultural use, further reducing site preparation requirements.

Areas with south-facing slopes of 3-8 degrees would be especially well-suited for solar installations, as this orientation and angle can optimize energy capture throughout the day and across seasons. The region's numerous former tobacco fields, many of which have transitioned out of agricultural production in recent decades, represent prime candidates for solar development due to their cleared status, established access roads, and often favorable slope characteristics.

The proximity to existing electrical transmission infrastructure along major corridors also makes certain areas more economically viable for large-scale solar projects. Fields and cleared areas within reasonable distance of power substations or transmission lines would face lower interconnection costs, making them more attractive for utility-scale development.

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 Louisburg, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Saturday 9th of August 2025
Last Updated: Sunday 10th 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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