Llano Grande Solar Power Information & Peak Sun Hours
Solar Green Energy Summary for Llano Grande, Texas
Lattitude: 26.1308
Sunlight
Fixed Tilt Sunlight Hours: 5.3 hours per day
1-Axis Tilt Sunlight Hours: 6.9 hours per day
2-Axis Tilt Sunlight Hours: 7.7 hours per day
If you put your solar powered math calculator in your backpack it will turn off from the lack of sunlight needed to power the device. As you slowly open your backpack and begin to let sunlight in, the calculator will eventually turn on when the amount of sunlight is enough to power the calculator. Similarly, peak sun hours refer to the hours of they day where the sunlight is strong enough to power a solar panel. This is different from total sunlight hours, which is simply the amount of hours in a day when there is any sunlight.
The latitude of the location is important for measuring peak sun hours. The latitude determines how much overall sunlight there will be in a day. With a given latitude, time and date, one can accurately determine when sunrise and sunset will occur. Areas with latitudes closer to the equator will have a more consistent range of solar insolation throughout the year. Whereas areas closer to the poles will have a greater variance during the summer and winter months due to their higher latitudes.
Since a fixed solar panel is set in one position it is ideal to place it at an angle that will expose the panel to the most sunlight throughout the year. This angle is generally the same angle of your latitude which is 26.1 for Llano Grande. You do not need to strategically place a 1-axis or 2-axis panel as much as you do a fixed panel. A 1-axis panel follows the movement of the sun during the day. Additionally, a 2-axis panel also adjusts for the suns various positions in the sky throughout the year.
The sunrise and sunset is very predictable every day, but things like cloud coverage and weather are less predictable and vary daily and annually. If a location that is usually very sunny experiences a huge increase in storms and cloud coverage in a given year than the average peak sun hours for that day or year will probably decrease. Tall objects such as trees and buildings can block out the sun during high solar insolation times, so be sure to strategically place your solar panels to get better efficiency.
The average daily peak sunlight hours in Llano Grande, Texas is 5.3 hours. Use this number when trying to calculate your solar needs in Llano Grande. As you can see above, if you were to use a 1-Axis or 2-Axis panel then the daily average would increase to 6.9 hour and 7.7 hours, respectively.