Determining Solar Panel Size

Orientation plays an important role especially if the roof size is small or not of a usable geometric shape.

Determining solar panel size.

The average size of solar panels used in a rooftop solar installation is approximately 65 inches by 39 inches or 5 4 feet by 3 25 feet. The roof size available for setting up the solar panel would need to be ascertained in square feet. 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. 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 exact number changes depending on the specifications of the chosen panel model as well as the sunshine available at the project site. Before you begin to size a solar system follow these steps to determine your home s average electricity consumption and pv needs. Sunpower panels are 61 3 inches by 41 2 inches. The size of a solar panel is a huge determining factor for placement production and optimization.

Calculate your kwh usage gather the kilowatt hours kwh usage from your electric bill. Look up your peak sun hours average peak sun. A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels.