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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

Solar professionals from 150+ countries use OpenSolar to help run their businesses

Map data ©2023 Google

Supports 12 languages













Support 12 languags

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.

hand holding onto a bank card

Integrated finance partners

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

sale tag that says "free"

Free of charge

All of this, for free, for all solar professionals, forever.


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."
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Kane Hinchliffe

RACV Solar

Victoria, Australia

‘’Time kills deals and processing finance applications manually is brutal on sales momentum. Since embedding our preferred finance products directly into our OpenSolar proposals, we've probably shaved 30 minutes off of every financed project and our sales reps and customers love how easy it is to apply and sign right there on the spot.’’
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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

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