Another way is to multiply the household s hourly energy requirement by the peak sunlight hours for the area.
Surface area of solar panel.
Solar panels need to have a lot of surface area that can be pointed towards the sun as the spacecraft moves.
The number of solar panels of the size used in the calculation will theoretically meet that energy demand during a sunny day.
Then divide that answer by the wattage of the solar panel intended to be used.
Solar panels are installed in arrays with the number of panels varying depending on the roof area available and the amount of power you wish to generate.
Sunpower panels are 61 3 inches by 41 2 inches.
72 cell commercial solar panels are approximately 13 inches longer than 60 cell residential panels.
The number of solar cells on one panel is directly related to its length.
More exposed surface area means more electricity can be converted from light energy from the sun.
To calculate the area you need to know the efficiency of the solar panels.
So the total area required is 30 000 200 150 m 2.
A total surface area this is the total surface area of your solar panels.
To figure out what the total surface area is simply multiply the length and width of the solar panel by each other.
Lets assume the solar panels have 20 efficiency so the energy produced is 200 watt m 2.
Typical residential solar panel dimensions today are about 65 inches by 39 inches or 5 4 feet by 3 25 feet with some variation among manufacturers.