Alice, Texas is a reasonably good location for year-round solar energy generation, situated in the Northern Sub Tropics at coordinates 27.7447, -98.082. The area receives strong solar irradiance throughout most of the year, making it a viable option for solar photovoltaic installations.
Seasonal Solar Performance
Summer represents the peak solar generation period in Alice, with panels producing an impressive 7.18 kWh per day for each kilowatt of installed capacity. This high output reflects the intense Texas sun and longer days characteristic of the summer months. Spring offers the second-best solar production at 5.85 kWh per day per kilowatt installed. The moderate temperatures and good sun exposure make this an excellent season for solar energy generation. Autumn production drops to 5.36 kWh per day per kilowatt, which is still quite respectable and demonstrates the location's ability to maintain decent solar output even as daylight hours begin to decrease. Winter presents the most challenging period for solar generation, with output falling to 3.82 kWh per day per kilowatt installed. While this represents the lowest production period, it's still a reasonable output for winter months in this latitude.Optimal Panel Installation
For maximum year-round energy production in Alice, Texas, solar panels should be installed at a fixed tilt angle of 24 degrees facing south. This angle has been calculated to optimize total annual solar output by accounting for the sun's varying position throughout the year and the Earth's elliptical orbit.Environmental and Weather Challenges
Several local factors in Alice, Texas can potentially impact solar panel performance and require careful consideration during installation:- Dust and Agricultural Particles: The semi-arid climate and surrounding agricultural activities can lead to significant dust accumulation on solar panels
- Severe Weather Events: The region experiences intense thunderstorms, occasional tornadoes, and potential hurricane impacts from Gulf Coast weather systems
- High Temperatures: Extreme summer heat can reduce panel efficiency and accelerate equipment degradation
- Hail Storms: South Texas is prone to severe hailstorms that can damage solar installations
Preventative Measures for Optimal Performance
To maximize solar energy production despite these challenges, several protective measures should be implemented: Regular cleaning schedules are essential to combat dust accumulation. Installing panels with anti-soiling coatings or self-cleaning surfaces can help reduce maintenance requirements. Automated cleaning systems may be worthwhile for larger installations. Robust mounting systems designed to withstand high winds and severe weather are crucial. Panels should be rated for the local wind loads and potential hail impact. Consider installing panels with tempered glass and reinforced frames. Adequate ventilation around panels helps manage the heat buildup that reduces efficiency during extreme summer temperatures. Proper spacing between panels and the roof surface allows for better air circulation. Installing monitoring systems enables quick detection of performance issues, allowing for prompt maintenance when weather-related problems occur. This helps maintain optimal energy production throughout the year. Despite these environmental challenges, Alice, Texas remains a solid location for solar energy generation, particularly during the spring and summer months when production peaks.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 Alice
Seasonal solar PV output for Latitude: 27.7447, Longitude: -98.082 (Alice, 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 24° South in Alice, United States
To maximize your solar PV system's energy output in Alice, United States (Lat/Long 27.7447, -98.082) throughout the year, you should tilt your panels at an angle of 24° 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 Alice, 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 Alice, United States. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 24° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 12° South in Summer | 33° South in Autumn | 43° South in Winter | 21° 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 Alice, 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 Alice, 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 Alice, United States
Topographical Features Around Alice, Texas
Alice is situated in the South Texas Plains region, characterized by relatively flat terrain with gentle rolling hills and minimal elevation changes. The landscape consists primarily of low-lying coastal plains that extend inland from the Gulf of Mexico, creating an expansive area of prairie and brushland. The elevation around Alice typically ranges from 150 to 300 feet above sea level, with the terrain gradually sloping toward the southeast in the direction of the Gulf Coast.
The region features scattered mesquite trees, thorny shrubs, and native grasses typical of the South Texas brush country. Small creeks and seasonal waterways meander through the area, though these are generally shallow and do not create significant topographical obstacles. The soil composition includes sandy loam and clay deposits, remnants of ancient marine sediments from when this area was covered by prehistoric seas.
Rolling hills are present but remain modest in height, rarely exceeding 50 feet of elevation change over several miles. These gentle undulations in the landscape are interspersed with flat valley floors and broad, open spaces that stretch for miles in every direction. The overall character of the terrain is one of subtle variation rather than dramatic topographical features.
Optimal Areas for Large-Scale Solar Development
The expansive flat areas southwest and northwest of Alice present the most favorable conditions for large-scale solar photovoltaic installations. These zones offer minimal slope variations and extensive open spaces that would accommodate substantial solar arrays without requiring significant land modification or grading work. The relatively sparse vegetation in these areas would also reduce clearing costs and environmental impact concerns.
Areas to the east and southeast of Alice, while still suitable, may present slightly more challenging conditions due to the presence of more seasonal waterways and slightly denser vegetation. However, the overall gentle topography throughout the region means that most directions from Alice could potentially support solar development with appropriate site selection.
The broad valley floors and mesa-like flat areas that characterize much of the surrounding landscape provide natural platforms for solar installations. These areas benefit from unobstructed sky access and minimal shading concerns from topographical features. The consistent elevation and lack of significant hills or ridges mean that large solar facilities could be designed with uniform panel orientation and spacing across extensive areas.
Ranch lands and agricultural areas surrounding Alice often feature already-cleared or minimally vegetated spaces that could transition to solar use with relatively straightforward development processes. The existing road infrastructure serving these rural areas would also facilitate construction and maintenance access 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: Friday 18th 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.




