Solar panels used for residential projects generally come in a standard size, which meets the needs for most homeowners because they fit on most roof sizes and produce enough energy to considerably lower the electric bill each month. Of course, if your roof is irregularly sized, your solar contractor may be able to help you find alternately sized solar panels or install them on your land instead of your roof.

Below is a chart of ten of the most common brands of solar panels and their dimensions. Your solar contractor will be able to tell you the best solar panel model for your project.

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Average Residential Solar Panel Dimensions

Average Solar Panel Dimensions

Different Solar Panel Sizes and Dimensions

The average dimensions for solar panels are 65 inches long by 39 inches wide, with the two exceptions:

  • Here you can see SunPower Corp’s E-series solar panels are smaller, making them a great choice if you have a smaller home or don’t need to convert as much solar energy into power for your home.
  • First Solar’s panels are a good option if you have more space to hold solar panels— like a large roof— or plan on installing solar panels on your land instead of your roof.
  • The depth dimensions vary a little more widely than the length and width because they are impacted by the base of the solar panels and any mounting equipment installed underneath the solar panels.

The reasoning behind having most solar panels be about the same size is that it creates an industry standard. That means that you’ll know what to expect, in terms of potential power, from a solar panel of a certain size. This also makes it easier to know how many solar panels you will need, or how many solar panels fit on your roof.

Find a Reliable Solar Installer

Finding a reliable and trustworthy solar installer is your first step in powering your home with solar energy. A knowledgeable contractor will help guide you through the process, answer questions about options, and ensure that you maximize both the immediate benefits of and future return on your solar panel installation.

At Modernize, we frequently speak to homeowners about their home improvement projects. In our recent interviews, 90 percent of homeowners requested a checklist to help them find and vet contractors. Modernize now offers homeowners a free, digital Contractor Checklist as a simple, step-by-step guide to assist with your solar panel project.