Opelousas, Louisiana, situated in the Northern Sub Tropics at coordinates 30.5178, -92.0878, presents a reasonably favorable location for solar PV energy generation throughout the year. The seasonal variations in solar output provide insights into the potential for solar energy production in this area.
Seasonal Solar Performance
Summer stands out as the peak season for solar energy generation in Opelousas, with an impressive daily output of 6.42kWh per kW of installed solar capacity. Spring follows closely, offering 5.33kWh/day, making it the second-best season for solar production. Autumn sees a moderate decrease to 4.65kWh/day, while winter experiences the lowest output at 3.11kWh/day per kW installed.
These figures indicate that Opelousas enjoys substantial solar potential for most of the year, with only a significant dip during the winter months. The extended periods of high solar productivity during summer and spring make this location particularly attractive for solar PV installations.
Optimal Panel Positioning
To maximize year-round solar energy production in Opelousas, fixed solar panels should be tilted at an angle of 27 degrees facing south. This optimal angle ensures the panels capture the most sunlight possible throughout the year, considering the location's latitude and the sun's changing position across seasons.
Environmental Considerations
While Opelousas generally offers favorable conditions for solar energy production, there are some environmental factors to consider:
1. Humidity: The region's subtropical climate can lead to high humidity levels, potentially affecting solar panel efficiency. Regular cleaning and maintenance can help mitigate this issue.
2. Tropical Storms: Opelousas's proximity to the Gulf Coast makes it susceptible to tropical storms and hurricanes. Installing sturdy mounting systems and using impact-resistant panels can enhance the durability of solar installations during severe weather events.
3. Tree Coverage: The area's lush vegetation might cause shading issues for some properties. Careful site assessment and strategic panel placement can help maximize sun exposure and minimize shading impacts.
By addressing these factors during the planning and installation phases, solar energy systems in Opelousas can be optimized for greater efficiency and resilience, making the most of the location's generally favorable solar conditions.
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 Opelousas
Seasonal solar PV output for Latitude: 30.5178, Longitude: -92.0878 (Opelousas, 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 27° South in Opelousas, United States
To maximize your solar PV system's energy output in Opelousas, United States (Lat/Long 30.5178, -92.0878) 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.
Seasonally adjusted solar panel tilt angles for Opelousas, 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 Opelousas, 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 |
|---|---|---|---|
| 15° South in Summer | 36° South in Autumn | 46° South in Winter | 23° 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 Opelousas, 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 Opelousas, 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 Opelousas, United States
The topography around Opelousas, Louisiana, is characterized by its relatively flat and low-lying terrain. Located in the heart of St. Landry Parish, this area is part of the broader Gulf Coastal Plain region. The landscape is predominantly composed of gently rolling prairies and coastal plains, with elevations generally ranging from 35 to 75 feet above sea level. The surrounding area features a mix of agricultural lands, small woodlands, and scattered wetlands. To the south and southeast of Opelousas, the terrain becomes increasingly flat as it transitions towards the coastal marshes of southern Louisiana. To the north and west, the land remains mostly level but may have slightly more variation in elevation. Rivers and bayous are important features of the local topography. The Bayou Teche flows to the east of Opelousas, while smaller waterways like Bayou Courtableau and Bayou Cocodrie meander through the surrounding countryside. These waterways have played a significant role in shaping the landscape over time, creating natural drainage patterns and fertile floodplains.
Suitability for Large-Scale Solar PV
When considering areas nearby Opelousas for large-scale solar photovoltaic (PV) installations, several factors come into play. The flat terrain and abundance of open spaces in the region make it generally favorable for solar development. However, some areas are more suitable than others. The agricultural lands to the north and west of Opelousas present the most promising opportunities for large-scale solar PV projects. These areas typically have large, unobstructed plots of land with minimal shading from trees or structures. The flat topography reduces the need for extensive land grading, which can help lower installation costs. Areas to the south and southeast, while also relatively flat, may be less ideal due to the increasing presence of wetlands and the potential for flooding. Solar installations in these areas would require careful planning and potentially more expensive foundation work to protect against water damage. It's important to note that while the topography is favorable, other factors such as local zoning regulations, proximity to electrical infrastructure, and environmental considerations would also need to be taken into account when selecting specific sites for solar PV development. Additionally, the region's susceptibility to hurricanes and severe weather events should be factored into the design and construction of any large-scale solar installations in the area.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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Friday 7th of March 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.
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Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
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