Compare the Top Free Solar Design Software as of October 2026

What is Free Solar Design Software?

Solar design software, also known as photovoltaic (PV) design software, helps engineers, architects, and solar installers plan and optimize solar energy systems by modeling the placement and performance of solar panels. It uses geographic, weather, and shading data to simulate energy production and system efficiency under various conditions. The software assists in creating detailed layouts, calculating system size, and estimating costs and return on investment. By enabling accurate design and visualization, it reduces errors and speeds up project approval and installation processes. Ultimately, solar design software helps maximize energy yield, lower costs, and support sustainable energy goals. Compare and read user reviews of the best Free Solar Design software currently available using the table below. This list is updated regularly.

  • 1
    PVSketch

    PVSketch

    PVComplete

    PVSketch is an intuitive web app designed to streamline solar project development. A friendly interface allows sales professionals easy access to a precision layout tool with little or no training. PVSketch helps visualize solar energy solutions and creates accurate energy modeling. PVSketch is part of the PVComplete platform. PVComplete allows solar developers, installers and engineers to work together on a single, versatile platform combining efficiency and accuracy. Sales professionals can begin a project quickly online with PVSketch and then transfer the project to PVCAD, our AutoCAD plugin, for a detailed engineering plan. PVSketch makes solar design simple. As little as five clicks and you can create a solar project packed with valuable information. Simple and instinctive drawing tools make accurate solar design accessible to any individual. While a single click can generate an entire layout if you dig deeper you can refine your solar design to create sophisticated designs.
    Starting Price: $50 per month
  • Previous
  • You're on page 1
  • Next