The world's leading solar design and proposal software

Free of charge so you're free to grow

3D solar design and shading analysis
No licensing or subscription fees.  
No seat limits.  
No design caps.
No lengthy contracts.
Just class-leading software, free-of-charge.

We're obsessed with making solar professionals successful. That's why our system is designed to work around you and your business.

OpenSolar around the world

Solar professionals from 130+ countries use OpenSolar to help run their businesses

Map data ©2022 Google

Why choose OpenSolar

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3D Design, Leading Accuracy

The fastest, simplest and most accurate 3D design tool available, making your proposals reliable and bankable from the office and in the field.

Open API

Integrate your existing CRM and business tools with our class-leading platform.  Work the way you want to work.

proposal document

Proposals that Sell

Fully customizable, interactive proposals online or as a PDF.  24% sale conversion drawn from experience selling 10,000's of systems, face-to-face and over the phone.

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End-to-end Software

Built-in CRM, digital scheduling, real-time customer alerts, hardware catalogs, on-demand permitting and e-signatures.

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Integrated Finance Partners

Effortless selection and integration of your chosen finance providers with in-app real-time approvals, making selling easier than ever.

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Free of Charge

All of this, for free, for all users, forever.

Testimonials

Profile image of Casey Coffman from Laibach Solar.

Casey Coffman

Laibach Solar

California, USA

“We were paying thousands of dollars per year on a design tool that was way slower and less accurate.  Now all of our team use OpenSolar for designs, proposals and managing our installs, for FREE - it's also really cool that we can brand the whole experience for our customers."
Profile image of Jessa Gray from Solaria

Jessa Grey

Solaria

Seattle, USA

"OpenSolar has been a game changer for our dealers.  The design tool is so sophisticated, and the proposal functionality really makes them stand out.  I like the exhibit capability that includes a multi-media presentation of equipment, right there in the proposal."
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Richard Cromarty

JPS Renewable Energy

Rochester, England

‘’We’re delighted that we finally have a design tool that matches our desire to provide a personalised service to our clients and manage the whole process from design to installation, end to end.’’

Trusted by our leading global partners

Dedicated mobile apps

Design and sell directly from the field on our dedicated mobile apps.

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Apple image link that says, "download on the App Store"
OpenSolar design and proposal software dedicated mobile app