Solar Design Tool for Configuring Grid-Tied Solar Electric Systems

SolarDesignTool.com is the #1 online solar design software for PV professionals

SolarDesignTool makes it easy for anyone to design and configure optimal solar power systems. You can use its array layout dimensioning tool and string configurator to design grid-tied solar systems using any solar panel and inverter. Save time and money! Try it out today!

127,736 Designs Created with SolarDesignTool

Design Solar System Screenshot of Sizing Method and Power Range

Design Solar System Screenshot of Inverters and Modules Selector

Example finished design on overview page

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Pro Features (Free)

Design a system now using SolarDesignTool's Pro version of the tool.

Design grid-tied solar electric systems for homes and business
Design both single-inverter and multi-inverter systems
Configure array layouts for single and multiple roofs
Compare configured systems side-by-side

Expert Features

Create an account to use SolarDesignTool's advanced features

All Pro features
View a graphical representation of a system's array layout
Arrange solar modules on roof quickly and easily, by simply dragging and dropping modules
Save designs so you can access or edit them later
Organize designs into projects
Export the design to a PDF system summary sheet
Use string configurator to quickly build single- and multi- inverter systems
and more!