Mabank, Texas offers reasonably good conditions for solar energy generation throughout the year, though like most locations in the Northern Sub Tropics, it experiences significant seasonal variation in solar output.
Seasonal Solar Performance
The location produces its highest solar energy output during summer months, generating 6.85 kWh per day for each kilowatt of installed solar capacity. This represents peak performance when the sun is highest in the sky and daylight hours are longest. Spring provides the second-best solar generation period, producing 5.30 kWh per day per kilowatt installed. This makes spring an excellent time for solar energy production, with mild weather conditions and good sun angles. Autumn sees a notable decline in solar output to 4.89 kWh per day per kilowatt, as the sun angle decreases and weather patterns begin to change toward winter conditions. Winter presents the most challenging period for solar generation, with output dropping to 3.00 kWh per day per kilowatt installed. Despite this seasonal low, the location still maintains reasonable solar production even during the least favorable months.Optimal Panel Installation
For maximum year-round solar energy production at Mabank, Texas, solar panels should be installed at a fixed tilt angle of 29 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 actual solar irradiance data.Local Factors Affecting Solar Production
Several environmental and weather factors in the Mabank area can impact solar energy generation:- Severe thunderstorms and hail: East Texas experiences frequent thunderstorms, particularly during spring and summer months, which can damage solar panels
- High humidity and heat: The subtropical climate creates conditions that can reduce panel efficiency and accelerate equipment degradation
- Dust and pollen: The region's agricultural activity and abundant vegetation can create dust and pollen buildup on solar panels
- Ice storms: Occasional winter ice storms can damage panels or create temporary shading
Preventative Measures for Better Performance
To maximize solar energy production despite these challenges, several installation strategies should be considered: Install panels with impact-resistant glass and sturdy mounting systems designed to withstand hail up to golf ball size. Choose panels with higher temperature coefficients that perform better in hot, humid conditions typical of East Texas summers. Regular cleaning schedules become essential in this environment. Monthly panel cleaning during high pollen seasons and quarterly cleaning throughout the year will help maintain optimal energy output. Installing panels at the recommended 29-degree tilt actually helps with natural rain cleaning. Proper ventilation around panels is crucial in the humid climate. Ensure adequate airflow beneath panels to prevent overheating and moisture buildup that can reduce efficiency. Consider micro-inverters or power optimizers to minimize the impact when individual panels are shaded or dirty. Quality grounding and surge protection systems are particularly important given the area's thunderstorm activity. This protects the investment while ensuring consistent energy production throughout the year.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 Mabank
Seasonal solar PV output for Latitude: 32.3591, Longitude: -96.0772 (Mabank, 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 29° South in Mabank, United States
To maximize your solar PV system's energy output in Mabank, United States (Lat/Long 32.3591, -96.0772) throughout the year, you should tilt your panels at an angle of 29° 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 Mabank, 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 Mabank, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 29° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 16° South in Summer | 37° South in Autumn | 48° South in Winter | 26° 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 Mabank, 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 Mabank, 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 Mabank, United States
Topography Around Mabank, Texas
The terrain surrounding Mabank in east-central Texas is characterized by gently rolling hills and relatively modest elevation changes typical of the East Texas region. This area sits within the Post Oak Savannah ecological region, where the landscape transitions from the flatter coastal plains to the west toward the more forested and hilly terrain of East Texas. The elevation around Mabank generally ranges from approximately 300 to 500 feet above sea level, with gradual slopes and undulating topography that creates a pleasant, varied landscape without dramatic elevation changes. The region features a mix of open pasturelands, scattered woodlands, and agricultural areas interspersed with residential developments and small communities. Cedar Creek Lake, a significant water body in the area, influences the local topography with its irregular shoreline creating numerous coves, peninsulas, and waterfront areas. The lake's presence means that much of the immediate vicinity has slopes that drain toward the water, though these are generally gentle gradients rather than steep inclines.Soil and Geological Characteristics
The underlying geology consists primarily of sedimentary formations typical of East Texas, including sandstone, shale, and clay deposits. The soils in the area are generally well-drained and range from sandy loams to clay-based compositions. Many areas feature the characteristic reddish-brown soils common to this part of Texas, which result from iron oxide content in the underlying rock formations. The terrain is stable with minimal risk of geological hazards such as landslides or significant erosion issues. The gentle topography and established vegetation patterns help maintain soil stability across most of the region. Drainage patterns are well-established, with numerous small creeks and tributaries feeding into Cedar Creek Lake and other local water bodies.Optimal Areas for Large-Scale Solar Development
The most suitable locations for large-scale solar photovoltaic installations would be the relatively flat to gently sloping agricultural and pasture lands located away from the immediate lake shoreline. These areas offer several advantages including minimal grading requirements, good drainage characteristics, and typically fewer environmental constraints compared to forested or waterfront locations. The open pasturelands and former agricultural areas southwest and northwest of Mabank present particularly favorable conditions for solar development. These locations feature gentle south-facing slopes that would be ideal for solar panel orientation, while the existing cleared land reduces development costs and environmental impact. The terrain in these areas is stable and well-drained, minimizing foundation and maintenance concerns. Areas with elevations between 350 and 450 feet above sea level, positioned on broad ridges or gentle hillsides, would provide excellent sites for solar installations. These locations typically offer good air circulation, which helps maintain optimal panel temperatures, while the elevated positions can reduce issues with fog or ground-level moisture that might affect panel efficiency. The region's road infrastructure provides reasonable access to many potential sites, though developers would need to consider proximity to electrical transmission infrastructure when selecting specific locations. The relatively open nature of much of the landscape means that solar installations could be positioned to minimize visual impact on residential areas while taking advantage of the favorable topographical conditions.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: Sunday 10th of August 2025
Last Updated: Monday 11th of August 2025
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Compare this location to others worldwide for solar PV potential
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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.




