Lismore Solar Power Information & Peak Sun Hours
Solar Green Energy Summary for Lismore, Minnesota
Lattitude: 43.7491
Sunlight
Fixed Tilt Sunlight Hours: 4 hours per day
1-Axis Tilt Sunlight Hours: 5.4 hours per day
2-Axis Tilt Sunlight Hours: 5.9 hours per day
Peak sun hours is one of the most important criteria to examine when considering installing a solar power system. Peak sun hours are different than total sunlight hours in a day because the strength of the radiation of the sun varies throughout the day. For example, during sunrise and sunset the solar insolation from the sun is less powerful than at noon. For a moment of sunshine to be considered a peak sun hour the intensity needs to be at least 1 kilowatt per square meter. This means that a square meter of your solar panel should be receiving 1 kilowatt of energy from the sun. This number is used because it is an amount of light that allows a solar panel to produce output efficiently and not under perform due to lack of sunlight power.
Sunlight hits the earth directly at the equator. This is why the equator has a latitude of zero degrees. The latitude of Lismore is 43.7. Knowing the latitude of Lismore 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.
They type of solar panel you use has an affect on the average peak sunlight hours. Some panels allow for movement, so they can track the sun as it rises in the east and sets in the west, or as the seasons change and the sun's path changes. A fixed panel remains fixed and does not have the ability to rotate, whereas a 1-axis and 2-axis panel can adjust with the sun.
Another reason to consider average peak sun hours is because weather can dramatically affect the day-to-day output of solar panels. It goes without saying that a dark stormy day will produce less output than a clear sunny day. Looking at a yearly average helps account for these daily variables.
By taking the latitude of Lismore one can get a close estimate of the amount of average peak sun hours per day for the geographical area. It varies with technology and the type of solar panel mount you use, but for a fixed mount solar panel in Lismore one can expect close to 4 average peak sun hours per day. With a 1-axis tracking mount you would get 5.4 hours per day, and 5.9 hours per day with a 2-axis tracking mount that tracks the sun everywhere in the sky.