Cut Off, Louisiana, located in the Northern Sub Tropics at coordinates 29.5427, -90.3381, presents a moderately favorable location for year-round solar energy generation, though with some notable seasonal variations and regional challenges to consider.
Seasonal Solar Performance
The solar energy output at this location shows strong performance during warmer months, with summer producing 5.76 kWh per day per kW of installed solar capacity. Spring follows closely with 5.66 kWh per day per kW, making these the ideal times of year for solar generation. Autumn sees a moderate decrease to 4.70 kWh per day per kW, while winter experiences the lowest output at 3.47 kWh per day per kW of installed capacity. For optimal year-round energy production from a fixed panel installation at Cut Off, Louisiana, solar panels should be tilted at 27 degrees facing south to maximize total annual solar output.Environmental and Weather Challenges
Several significant factors in this Louisiana location can impede solar energy production and require careful consideration during installation:- Hurricane and severe storm exposure: The Gulf Coast region experiences frequent tropical storms and hurricanes that can damage solar installations
- High humidity and salt air: Proximity to coastal waters creates corrosive conditions that can degrade solar equipment over time
- Heavy rainfall and flooding: Louisiana's subtropical climate brings intense precipitation that can affect ground-mounted systems
- Extreme heat and thermal cycling: High summer temperatures can reduce panel efficiency and cause expansion/contraction stress
Preventative Installation Measures
To ensure greater energy production despite these challenges, several protective measures should be implemented. Wind-resistant mounting systems rated for hurricane-force winds are essential, along with corrosion-resistant aluminum or stainless steel hardware to combat salt air exposure. Proper drainage systems and elevated mounting help protect against flooding, while adequate ventilation behind panels prevents overheating during Louisiana's hot summers. Regular cleaning schedules become particularly important due to dust, pollen, and debris accumulation in this humid environment. Investing in panels with strong warranties against environmental degradation and using marine-grade electrical components will help ensure long-term performance in Cut Off's challenging coastal climate 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 Cut Off
Seasonal solar PV output for Latitude: 29.5427, Longitude: -90.3381 (Cut Off, 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 Cut Off, United States
To maximize your solar PV system's energy output in Cut Off, United States (Lat/Long 29.5427, -90.3381) 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 Cut Off, 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 Cut Off, 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 | 45° South in Winter | 22° 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 Cut Off, 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 Cut Off, 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 Cut Off, United States
Topographical Characteristics of Cut Off, Louisiana
Cut Off is situated in the heart of Louisiana's coastal wetlands, approximately 60 miles southwest of New Orleans in Lafourche Parish. The community sits within the Mississippi River Delta region, characterized by extremely flat terrain that lies barely above sea level. This area represents some of the lowest-lying land in the continental United States, with elevations typically ranging from sea level to just a few feet above it. The landscape surrounding Cut Off consists primarily of marshlands, bayous, and waterways that form an intricate network throughout the region. Bayou Lafourche, a major distributary of the Mississippi River, runs directly through the area and serves as the primary geographical feature. The terrain is predominantly composed of alluvial deposits - fine sediments carried and deposited by the Mississippi River over thousands of years.Wetlands and Water Features
The topography is dominated by freshwater and brackish marshes that extend in all directions from Cut Off. These wetlands are interspersed with numerous small lakes, ponds, and winding waterways that create a complex aquatic ecosystem. The land is characterized by soft, organic soils that are prone to subsidence, contributing to the region's ongoing challenges with land loss and flooding. Natural levees along Bayou Lafourche and other waterways provide slightly higher ground, typically rising just a few feet above the surrounding marsh. These elevated areas, though minimal in height difference, represent some of the most stable land in the immediate vicinity.Suitability for Large-Scale Solar Development
The topographical challenges around Cut Off present significant obstacles for large-scale solar photovoltaic installations. The extremely low elevation and soft, unstable soils would require extensive foundation work and specialized mounting systems to support solar arrays. The high water table and frequent flooding in the area would necessitate elevated installations, substantially increasing construction costs. The most suitable areas for solar development would be found inland, moving northwest toward more stable ground in central Louisiana. Areas around Thibodaux, approximately 20 miles northwest of Cut Off, offer slightly higher elevations and more stable soil conditions while still maintaining relatively flat terrain ideal for solar installations. Moving further inland toward the communities of Raceland and Mathews provides additional advantages, with marginally higher ground and reduced flood risk. These areas still maintain the flat topography beneficial for solar arrays while offering more reliable soil conditions for foundation work.Alternative Locations for Solar Development
The most promising locations for large-scale solar facilities would be found 30-50 miles inland from Cut Off, in areas such as Houma and beyond toward Lafayette. These regions offer the necessary combination of stable soils, reduced flood risk, and adequate elevation while maintaining the relatively flat terrain that makes solar installation efficient and cost-effective. Agricultural areas in these inland regions often provide large, unobstructed parcels of land with existing infrastructure access. Former sugarcane fields and pastureland offer particularly suitable conditions, as they typically have been cleared and leveled for agricultural use, reducing site preparation requirements 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
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Monday 21st of July 2025
Last Updated: Thursday 7th 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.
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.




