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Flag of United StatesSolar PV Analysis of Sulphur, United States

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

Sulphur, Louisiana represents a moderately good location for year-round solar energy generation, though it experiences significant seasonal variation in output. Located in the Northern Sub Tropics, this area produces its highest solar energy during summer months and faces considerable challenges during winter.

Seasonal Solar Performance

The solar energy production at Sulphur varies dramatically throughout the year. Summer delivers the strongest performance at 6.33 kWh per day per kW of installed capacity, making it an excellent time for solar generation. Spring follows as the second-best season with 5.19 kWh per day per kW, providing solid energy output as daylight hours increase.

Autumn sees a notable decline to 4.65 kWh per day per kW, while winter presents the most challenging conditions with only 3.04 kWh per day per kW. This winter figure represents less than half of the summer production, highlighting the seasonal limitations of this location.

For optimal year-round energy capture, solar panels should be installed at a fixed tilt angle of 27 degrees facing south. This angle maximizes total annual production by balancing the sun's varying position throughout the seasons.

Environmental and Weather Challenges

Several significant factors can impede solar production in Sulphur, Louisiana. The region's high humidity and frequent cloud cover, particularly during summer months, can reduce solar irradiance even when temperatures are optimal for energy generation.

Hurricane season poses a major threat to solar installations from June through November. These powerful storms bring destructive winds, heavy rainfall, and flying debris that can severely damage or destroy solar panels and mounting systems.

The area also experiences frequent thunderstorms and severe weather events that can cause temporary production losses and potential equipment damage. Additionally, the humid subtropical climate promotes faster accumulation of dirt, pollen, and organic matter on panel surfaces, reducing efficiency over time.

Preventative Measures for Better Performance

Several strategies can help maximize solar energy production despite these challenges:

  • Install hurricane-rated mounting systems designed to withstand winds exceeding 150 mph
  • Use tempered glass panels with reinforced frames that can better resist impact from debris
  • Implement regular cleaning schedules to remove accumulated dirt, pollen, and organic matter
  • Consider micro-inverters or power optimizers to minimize production losses when individual panels are shaded or dirty
  • Install proper drainage systems to prevent water pooling around ground-mounted systems

Proper system design should also include adequate spacing between panel rows to allow for maintenance access and reduce shading effects during lower sun angles in winter months. Given the seasonal variation, battery storage systems may be particularly valuable for maintaining consistent energy availability during the lower-production winter period.

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 Sulphur

Seasonal solar PV output for Latitude: 30.2159, Longitude: -93.3585 (Sulphur, 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 6.33kWh/day in Summer.
Autumn
Average 4.65kWh/day in Autumn.
Winter
Average 3.04kWh/day in Winter.
Spring
Average 5.19kWh/day in Spring.

 

Ideally tilt fixed solar panels 27° South in Sulphur, United States

To maximize your solar PV system's energy output in Sulphur, United States (Lat/Long 30.2159, -93.3585) throughout the year, you should tilt your panels at an angle of 27° 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: 30.2159, Longitude: -93.3585, the ideal angle to tilt panels is 27° South

Seasonally adjusted solar panel tilt angles for Sulphur, 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 Sulphur, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 27° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
14° South in Summer 35° South in Autumn 46° South in Winter 23° 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 Sulphur, United States as follows: In Summer, set the angle of your panels to 14° facing South. In Autumn, tilt panels to 35° facing South for maximum generation. During Winter, adjust your solar panels to a 46° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 23° angle facing South to capture the most solar energy in Sulphur, 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 Sulphur, 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 Sulphur, 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 Sulphur, United States

Topography Around Sulphur, Louisiana

The area surrounding Sulphur, Louisiana is characterized by remarkably flat, low-lying terrain typical of the Gulf Coast region. This coastal plain landscape sits just a few feet above sea level, creating an expansive, level environment that stretches for miles in all directions. The topography consists primarily of former marsh and prairie lands that have been gradually developed over time, with gentle undulations being the most dramatic elevation changes across the region. The immediate vicinity features a patchwork of industrial facilities, residential areas, and remnant wetlands, all situated on this consistently flat terrain. Small drainage channels and bayous meander through the landscape, creating the only significant variations in the otherwise uniform topography. These waterways are essential for managing the substantial rainfall that characterizes this subtropical climate zone. Moving outward from Sulphur, the terrain remains consistently level across vast distances. To the north and east, the landscape transitions into former prairie lands and agricultural areas, while maintaining the same flat characteristics. The western areas toward the Texas border continue this pattern of minimal elevation change, broken only by man-made features like levees and industrial earthworks.

Optimal Areas for Large-Scale Solar Development

The extensive flat terrain surrounding Sulphur presents numerous opportunities for large-scale solar photovoltaic installations. The most promising areas lie to the north and northeast of the city, where former agricultural lands and open prairie provide large, unobstructed parcels with minimal environmental constraints. These areas benefit from the region's naturally level topography while being positioned away from the more sensitive wetland areas closer to the coast. The western corridor extending toward the Texas state line offers another excellent zone for solar development. This area combines the advantages of flat terrain with proximity to existing electrical transmission infrastructure that serves the region's industrial facilities. The consistent topography eliminates the need for extensive site preparation or grading work that would be required in more varied landscapes. Areas to the east and southeast also present viable options, particularly where the landscape transitions from industrial use to open land. The uniform elevation and absence of significant geological obstacles make these locations particularly attractive for large-scale installations. The key advantage throughout this entire region is the minimal site preparation required due to the naturally level terrain. When considering solar development in this area, the flat topography eliminates many of the challenges associated with uneven ground, such as shading issues between panel rows or complex foundation requirements. The consistent grade allows for optimal panel spacing and orientation across large areas, maximizing the efficiency of land use for solar 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!

Citation Guide

Article Details for Citation

Article: Solar PV Analysis of Sulphur, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 11th of July 2025
Last Updated: Wednesday 6th 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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