OpenSolar's leading software is saving large solar businesses
like yours $100,000s
Why pay when the most accurate, preferred platform is free?
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120+ countries
10K+ Solar Pros
100K+ proposals
Why the leading players in solar are switching to OpenSolar
Proven Speed & Accuracy
Build quality proposals in minutes
Combine fast, auto-rendered 3D designs with class-leading accuracy validated by NREL and you get quality proposals that close. In addition to building proposals with financials that you can trust, our year-round shading analysis and solar-tracing automations will surely help you win over your customers.

Schedule a demo with Mark
Ready to make the switch? Onboard your business with the support of our Pro Experience Manager and one of the industry's leading solar sales experts, Mark Matos. He's here to help you confirm the right fit.

No licensing or subscription fees.
No seat limits.
No design caps.
No lengthy contracts.
Just class-leading software, free-of-charge.
Your dedicated support team is available to help you set up and use all of these features for your business, 24x7, free of charge.
What our Pros have to say

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."