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Flag of United StatesSolar PV Analysis of Gladewater, United States

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

Gladewater, Texas, located in the Northern Sub Tropics at coordinates 32.5365, -94.9427, offers moderate potential for year-round solar energy generation, though it experiences significant seasonal variation in solar output.

Seasonal Solar Performance

The location shows strong summer performance with solar panels producing 6.83 kWh per day per kW of installed capacity during the peak season. Spring also provides good output at 5.32 kWh per day per kW, making these the ideal times for solar generation at this location. Autumn production drops to 4.70 kWh per day per kW, while winter sees the lowest output at just 2.75 kWh per day per kW. This winter figure represents less than half of the summer production, indicating substantial seasonal challenges for consistent energy generation. For maximum year-round energy production, solar panels should be installed at a fixed tilt angle of 28 degrees facing south. This optimal angle is calculated by analyzing daily solar elevation angles throughout the year and weighting them according to solar irradiance data.

Local Factors Affecting Solar Production

Several environmental and weather factors in East Texas can significantly impact solar energy production:
  • High humidity and frequent cloud cover - The region's subtropical climate brings substantial moisture and overcast conditions, particularly during summer months
  • Severe thunderstorms - East Texas experiences intense storms with heavy rain, hail, and strong winds that can damage panels and reduce output
  • Dense pine forests - The heavily forested landscape can create shading issues for residential installations
  • Dust and pollen accumulation - High pollen counts from surrounding forests and agricultural dust can coat panels, reducing efficiency

Preventative Installation Measures

To maximize solar energy production despite these challenges, several installation strategies should be considered. Panels should be mounted with adequate spacing for air circulation to prevent moisture buildup and overheating in the humid climate. Installing impact-resistant tempered glass panels and robust mounting systems helps protect against hail damage and severe weather. Regular cleaning schedules become essential to remove pollen and dust buildup, particularly during spring and summer months. Careful site selection to avoid tree shading is crucial, potentially requiring tree trimming or removal. Installing monitoring systems allows for quick identification of performance issues related to weather damage or debris accumulation. The seasonal variation in output means that battery storage or grid-tied systems become more important in this location to manage the significant difference between winter and summer production levels.

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 Gladewater

Seasonal solar PV output for Latitude: 32.5365, Longitude: -94.9427 (Gladewater, 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 6.83kWh/day in Summer.
Autumn
Average 4.70kWh/day in Autumn.
Winter
Average 2.75kWh/day in Winter.
Spring
Average 5.32kWh/day in Spring.

 

Ideally tilt fixed solar panels 28° South in Gladewater, United States

To maximize your solar PV system's energy output in Gladewater, United States (Lat/Long 32.5365, -94.9427) throughout the year, you should tilt your panels at an angle of 28° 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: 32.5365, Longitude: -94.9427, the ideal angle to tilt panels is 28° South

Seasonally adjusted solar panel tilt angles for Gladewater, 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 Gladewater, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 28° South tilt angle throughout the year.

Overall Best Summer Angle Overall Best Autumn Angle Overall Best Winter Angle Overall Best Spring Angle
17° South in Summer 37° South in Autumn 48° South in Winter 26° 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 Gladewater, United States as follows: In Summer, set the angle of your panels to 17° facing South. In Autumn, tilt panels to 37° facing South for maximum generation. During Winter, adjust your solar panels to a 48° angle towards the South for optimal energy production. Lastly, in Spring, position your panels at a 26° angle facing South to capture the most solar energy in Gladewater, 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 Gladewater, 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 Gladewater, 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 Gladewater, United States

Topographical Features of Gladewater and Surrounding Region

The topography around Gladewater, Texas is characterized by gently rolling hills and relatively modest elevation changes typical of the East Texas region. The area sits within the western edge of the Piney Woods ecoregion, where the landscape transitions from the flatter coastal plains to the more undulating terrain of East Texas. Elevations in the immediate vicinity generally range from approximately 250 to 400 feet above sea level, creating a landscape of moderate relief with gradual slopes and broad, shallow valleys. The terrain features a mix of forested uplands and cleared agricultural areas, with numerous small creeks and drainage channels cutting through the landscape. These waterways have created a network of gentle valleys and low ridges that give the region its characteristic rolling appearance. The underlying geology consists primarily of sedimentary formations that have weathered into relatively stable soils, though some areas may experience minor erosion along steeper slopes near water features.

Forest Cover and Land Use Patterns

Much of the natural landscape around Gladewater remains heavily forested, dominated by mixed pine and hardwood forests typical of East Texas. These wooded areas create significant shading and would require substantial clearing for large-scale solar installations. However, the region also contains numerous cleared areas that have been used for agriculture, particularly cattle grazing and some crop production, which could potentially be more suitable for solar development. The existing land use pattern shows a patchwork of forest, pasture, and developed areas, with many properties featuring a combination of open fields and wooded sections. This mixed landscape provides opportunities for solar development in areas that are already cleared while preserving the more environmentally sensitive forested zones.

Optimal Areas for Large-Scale Solar Development

The most suitable locations for large-scale solar photovoltaic installations in the Gladewater area would be the existing cleared agricultural lands, particularly the larger pastures and former crop fields that offer relatively flat to gently sloping terrain. These areas typically provide the best combination of minimal site preparation requirements, reduced environmental impact, and favorable topographical conditions. Areas with south-facing slopes of modest grade would be particularly advantageous, as they can maximize solar exposure throughout the day while maintaining manageable construction and maintenance conditions. The gentler topography found in the broader valley areas and plateau-like sections would minimize the need for extensive grading and reduce installation costs compared to steeper hillsides. Properties located away from the more densely forested zones but still maintaining good road access would be ideal candidates. The relatively stable soils in much of the region should provide adequate foundation conditions for solar mounting systems, though site-specific geotechnical analysis would be necessary for any major installation.

Infrastructure and Access Considerations

The topographical layout of the Gladewater area generally supports good accessibility for construction and maintenance activities. The rolling terrain allows for reasonable road access to most areas without requiring extreme engineering solutions. Existing farm roads and rural routes provide a foundation for accessing potential solar sites, though some improvements might be necessary for large-scale construction equipment. Drainage considerations are important given the network of small creeks and seasonal water flow patterns throughout the region. Solar installations would need to account for natural drainage patterns and potentially incorporate appropriate stormwater management features, particularly in the lower-lying areas and near existing waterways.

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 Gladewater, United States
Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Wednesday 23rd 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.

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