Sizing Solar Panel System

Determine how many solar panels you ll need.

Sizing solar panel system.

If you have a small or odd shaped roof solar panel size is an important consideration when deciding on the size of a solar system. Perhaps one of the most difficult aspects of sizing a solar panel system is estimating annual energy usage for your household. Take these factors into account. One solar panel produces about 1 24 kwh per day.

In the example above you would need 24 solar panels to account for 80 of your average consumption 29 6 kwh daily usage divided by 1 24 kwh per panel. Those solar panels used for residential purposes range from 150 watts to 370 watts per panel depending on the panel size efficiency and cell technology. For the most accurate and personalized off grid system size calculation call our solar experts at 1 800 472 1142. We want to help you get the system that s right for you.

A number of larger consumer products or add ons can significantly change your annual kilowatt hour requirements and thus can greatly impact how many panels you will need. 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 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. How big are solar panels. Solar panels for households typically come in the standard dimensions of 1 70m x 1 00m that s around 1 7m2 for every panel installed however the wattage output w of the panels will likely vary between 250w and 360w for a more efficient module.

This is a very general system size estimation. A 5kw solar system may produce enough energy to power your home but you may not have enough roof space for a system of that size.