Texas City, Texas, located in the Northern Sub Tropics, offers favorable conditions for solar PV energy generation throughout the year, though with notable seasonal variations. This coastal location in Galveston County experiences its peak solar production during the summer months, when panels can generate approximately 6.63kWh per day for each kilowatt of installed capacity.
Seasonal Solar Production
Solar energy production in Texas City follows predictable seasonal patterns. Summer stands out as the most productive season with 6.63kWh/day per installed kilowatt. Spring follows as the second most productive season at 5.43kWh/day, while autumn produces 4.80kWh/day. Winter, as expected, delivers the lowest output at 3.31kWh/day per kilowatt of installed capacity.
This seasonal pattern means that a solar installation will generate approximately twice as much electricity in summer compared to winter months. However, even during winter, the location still produces meaningful amounts of solar energy due to its subtropical latitude.
Optimal Panel Installation
For fixed solar panel installations in Texas City, the ideal tilt angle to maximize year-round energy production is 26 degrees facing South. This specific angle optimizes the capture of solar energy across all seasons, balancing the higher summer sun with the lower winter sun position.
Environmental and Weather Considerations
Texas City faces several environmental factors that could potentially impact solar production:
- Hurricane risk: The Gulf Coast location means periodic hurricane threats, which can damage solar installations if not properly secured. Reinforced mounting systems and impact-resistant panels are recommended.
- Salt air exposure: Proximity to the Gulf of Mexico means installations are exposed to salt-laden air, which can accelerate corrosion. Using marine-grade materials and regular maintenance can mitigate this issue.
- Industrial pollution: Texas City has significant industrial activity that can create air pollution, potentially reducing solar efficiency through particulate buildup on panels. Regular cleaning schedules are important.
- Humidity and heat: High humidity levels combined with heat can slightly reduce panel efficiency and potentially affect electronic components. Proper ventilation behind panels and quality inverters designed for hot climates can help address this.
Despite these challenges, preventative measures such as hurricane-rated mounting systems, corrosion-resistant hardware, regular cleaning schedules, and proper system design can ensure reliable solar production. The strong solar resource, particularly from March through October, makes Texas City a worthwhile location for solar PV installations when these factors are properly addressed.
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 Texas City
Seasonal solar PV output for Latitude: 29.397, Longitude: -94.9203 (Texas City, 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 26° South in Texas City, United States
To maximize your solar PV system's energy output in Texas City, United States (Lat/Long 29.397, -94.9203) throughout the year, you should tilt your panels at an angle of 26° 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 Texas City, 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 Texas City, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 26° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 13° South in Summer | 34° South in Autumn | 45° 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 Texas City, 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 Texas City, 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 Texas City, United States
The topography around Texas City, United States presents a predominantly flat coastal plain characteristic of the Gulf Coast region of Texas. Situated on Galveston Bay approximately 10 miles from the Gulf of Mexico, Texas City exists in a low-lying area with an average elevation of only about 10 feet (3 meters) above sea level. This flat terrain extends for miles in all directions, creating an unobstructed horizon typical of coastal plains. The landscape surrounding Texas City features extensive wetlands, salt marshes, and prairie remnants. These natural features are interspersed with industrial developments, as the area serves as a significant petrochemical and shipping hub. To the east lies Galveston Bay, while the mainland stretches west and north with minimal topographic variation. The soil composition consists primarily of clay and silt deposits, the result of centuries of alluvial processes from nearby waterways.
Solar PV Potential Areas
For large-scale solar photovoltaic (PV) installations, several nearby areas offer promising characteristics. The flat, open terrain northwest of Texas City presents substantial opportunities. This inland direction provides distance from corrosive salt spray while maintaining the advantageous flat topography that simplifies construction and maximizes consistent sun exposure across arrays. The areas extending toward Santa Fe and League City contain larger tracts of undeveloped or agricultural land that could accommodate significant solar infrastructure. These locations benefit from reduced flood risk compared to areas immediately adjacent to the coast, an important consideration given the region's vulnerability to tropical weather systems. Land parcels southwest toward Hitchcock and Alta Loma also merit consideration for solar development. These areas feature similar flat terrain but with slightly higher average elevations that provide additional protection from storm surge events. The minimal shading from topographic features across the entire region represents a significant advantage for solar energy capture. It's worth noting that while the immediate coastal zones offer flat terrain ideal for construction, the increased exposure to hurricane activity, higher humidity, and salt corrosion may reduce equipment longevity. Therefore, optimal sites would balance the region's abundant solar resource with locations that minimize these environmental stressors while taking advantage of the consistently flat topography that characterizes the entire area surrounding Texas City.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: Thursday 22nd of May 2025
Last Updated: Sunday 30th of November 2025
Tell Us About Your Work
We love seeing how our research helps others! If you've cited this article in your work, we'd be delighted to hear about it. Drop us a line via our Contact Us page or on X, to share where you've used our information - we may feature a link to your work on our site. This helps create a network of valuable resources for others in the solar energy community and helps us understand how our research is contributing to the field. Plus, we occasionally highlight exceptional works that reference our research on our social media channels.
Feeling generous?
Share this with your friends!

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.




