Average KWH Production For Solar Systems

Average Kilo Watt Hour Production Examples for Solar Panel Systems:

  • Example 1:  10 Solar Panel System
    • 5 hours of sunlight per day on average
    • 200 watt solar panels
    • No shading from trees
    • mounted flat and in an ideal south-southwest direction
      • This type of solar system would be able to produce 1 kwh per hour of sunlight or 5 kwh per day.
      • After the energy loss is factored into the equation, the total energy production in KWH would be about: 4KWH per day
  • Example 2: 20 Panel Solar System
    • 5 hours of average sunlight per day all year long
    • No shading from trees or other buildings
    • each solar panel is also 200 watts per panel
    • solar angle towards the sun is set in an ideal path (south or south-west)
      • This size solar panel system could produce 2kwh per hour of sunlight
      • So, this would make about 8 kwh for a 20 panel system after the energy loss

As you can see from the above examples, the factors that we need to take into account are the size of the panels in terms of their watts.  If a solar panel has just 100 watts, it will make half as much electricity per hour compared to a 200 watt panel.  Another very important variable that we need to recognize is the amount of shading that may exist on the solar system.  If there is heavy amounts of daylight that go blocked from the shade of trees for example, it will have a horrible effect on the production of kilo watt hours, and it will end up costing you potentially thousands of dollars over the years.

Most importantly, you should realize that an average amount of kwh electricity production from solar is simply an average and is usually based on a full calendar year.  In the winter time, the systems will probably be producing less than the average due to smaller amounts of sunlight.  In the summer time, that will flip upside down and you will see much higher production days.

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