Size of solar panels installed on roof

How much roof space do solar panels need?

Fundamentally, an average solar panel system will need between 335 and 405 sq. ft. of roof space. If the space of your roof is meager, high-efficiency solar panels allow you to set up fewer modules while still covering your power requirements.

How do I choose the best solar panel size?

Choosing the best solar panel size depends on your roof’s specific characteristics. Here’s a quick guide to help you decide: Small Roofs: For smaller roofs, 60-cell panels are usually the best option. They offer a good balance of size and power output without overwhelming your roof.

Why is calculating rooftop solar panel dimensions important?

In the design and installation of photovoltaic systems, calculating rooftop solar panel dimensions is a critical factor that determines the success of a project. With limited roof space, inaccurate measurement and planning may result in insufficient installed capacity, wasted space, and an extended payback period.

How much space do solar panels take up?

The average residential solar panel size is about 17.5 sq ft—though it’s good to overestimate the area required as some installation space is necessary between the panels and rows. When installing 22 panels like in our example, and each panel takes up about 18 sq ft, your system would require approximately 396 sq ft of roof space.