Determining Solar Panel Size

Before you begin to size a solar system follow these steps to determine your home s average electricity consumption and pv needs.

Determining solar panel size. Orientation plays an important role especially if the roof size is small or not of a usable geometric shape. The exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site. There is some variation from brand to brand and if you re installing a large scale solar panel system such as for a warehouse or a municipal building your panels will be closer to 6 feet long. The size of a solar panel is a huge determining factor for placement production and optimization.

Look up your peak sun hours average peak sun. In our solar panel size guide we will highlight everything you should know about your solar panel sizing and possible power output. 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. The roof size available for setting up the solar panel would need to be ascertained in square feet.

You ll want to have full 12. The size available needs to be divided by the size of the solar panel that is going to be used. Sunpower panels are 61 3 inches by 41 2 inches.