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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 130+ countries use OpenSolar to help run their businesses

Map data ©2023 Google

Supports 12 languages

English

Spanish

German

French

Dutch

Swedish

Italian

Polish

Portuguese

Danish

Norwegian

Finnish

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.