Determining Solar Panel Size

Calculate your kwh usage gather the kilowatt hours kwh usage from your electric bill.

Determining solar panel size.

Sunpower panels are 61 3 inches by 41 2 inches. 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. 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. A home that consumes 1 000 kwh per month will normally need between 20 and 30 solar panels. The size available needs to be divided by the size of the solar panel that is going to be used. Orientation plays an important role especially if the roof size is small or not of a usable geometric shape.

You ll want to have full 12. 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 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.