Best Solar Design Software

Compare the Top Solar Design Software as of November 2025

What is 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 Solar Design software currently available using the table below. This list is updated regularly.

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    HOMER Energy

    HOMER Energy

    HOMER Energy

    All HOMER software is built on the trusted, market-leading HOMER platform, used by more than 250,000 system designers and developers in over 190 countries. With decades of experience, we provide the most robust, accurate solutions to help make hybrid power systems technically optimal and maximally cost-effective. Explore which product is most suited for your project, or further understand our approach to techno-economic analysis. Watch the video, download the white paper, or talk to an expert to explore how UL advisory professionals can help. If you need help with your modeling and analysis, or need training in HOMER software, we are here to help. We offer a full range of support services to ensure your success. UL advisory services enable you to leverage our long-standing expertise in renewable energy and qualifications as independent engineers. We offer full project support from feasibility studies, to design and certification.
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