Barretts Solar Power Information & Peak Sun Hours
Solar Green Energy Summary for Barretts, Missouri
Lattitude: 38.5717
Sunlight
Fixed Tilt Sunlight Hours: 5.2 hours per day
1-Axis Tilt Sunlight Hours: 6.4 hours per day
2-Axis Tilt Sunlight Hours: 6.5 hours per day
It goes without saying that throughout the year the amount of sunlight in any given day is going to vary. The time of year and weather will have a strong influence on daily sunshine. Looking at the average amount of peak sunshine hours in a day during an entire year stretch is a valuable exercise when trying to determine the amount and type of solar panels you need to install to power your business or your home. 5.2 peak sun hours means that in Barretts on average there are 5.2 hours a day where the sun is strong enough for solar panels to harness its energy. This number is less than the amount of total sunlight hours in a day because there are times during the day (ex. sunrise and sunset) where the sun is not strong enough to benefit solar panels.
Sunlight hits the earth directly at the equator. This is why the equator has a latitude of zero degrees. The latitude of Barretts is 38.6. Knowing the latitude of Barretts can help you plan for your solar panel setup, as the larger the latitude the more variance you will see throughout the year for total daily sunlight hours.
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 38.6 for Barretts. 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.
Using the latitude of Barretts along with historical data of sunlight and weather patterns we can estimate that a fixed mounted solar panel will receive an average of 5.2 hours per day in this area. That number can be increased with better technology including add a 1-axis or 2-axis tracking mount, which would increase the average peak sun hours per day to 6.4 hours and 6.5 hours, respectively.
Helpful & Interesting
Which countries are 100% renewable energy?
Iceland generates the most clean electricity per person on earth, with almost 100% of its energy coming from renewable sources that make the most of its unique landscape. It now derives all of its energy for electricity and home heating from geothermal and hydroelectric power plants. Its renewable power plants like the geothermal plant at Blue Lagoon even draw significant amounts of tourists every year!