Switching From OpenSolar: Installer Guide

Switching From OpenSolar: When Leaving Free Software Is Worth It

Published: June 4, 2026 · By Kaelan Taeni

Leaving a free platform for a paid one only makes sense if the free one is quietly costing you somewhere else, and with OpenSolar, that somewhere is usually compliance. If you're producing AS/NZS 5033 SLDs in separate software or hand-handling battery rebates, the free tool isn't really free. This guide covers when switching from OpenSolar is worth it, when it isn't, and how to move cleanly.

When does switching from OpenSolar make sense?

Switching from OpenSolar makes sense when the compliance gap is costing you more than the software would. The common triggers are needing compliant single-line diagrams without separate CAD, wanting accurate STC and Federal Battery Rebate handling inside the quote, or needing Australian-specific documentation as a first-class feature rather than a global add-on. The change to paid API access from April 2026 has also pushed some integration-heavy businesses to re-evaluate. None of these are about OpenSolar being bad, they're about outgrowing what a free, global tool focuses on.

When should you NOT switch from OpenSolar?

Don't switch if the free platform already does everything you need, paying for compliance you handle fine another way is a poor trade. Stay if your work is mostly straightforward residential, you have years of templates and proposals built up in OpenSolar, and no real compliance gap is pushing you. If cost is the deciding factor and a paid tool's benefits wouldn't pay for themselves in time saved, free is the right answer.

What does switching actually solve?

Switching solves the specific friction of doing Australian compliance by hand. The point isn't to replace a capable design tool with another capable design tool, it's to stop maintaining a separate CAD workflow for SLDs, stop manually checking STC and battery-rebate maths, and stop bolting Australian documentation onto a global platform. If those tasks aren't part of your day, switching solves a problem you don't have.

How do you switch from OpenSolar without disrupting your pipeline?

Move in parallel and rebuild your template first. Keep OpenSolar live while you set up the new tool, recreate your branded proposal template (an AI template builder makes this quick), then quote new leads in the new system while existing OpenSolar deals close where they are. Export the historical proposals and customer details you want to keep before winding the old account down, and train the team on one workflow so quotes stay consistent.

What does Solar Proof give you in place of OpenSolar?

Solar Proof gives you the Australian compliance layer OpenSolar leaves to you: STCs and the tiered Federal Battery Rebate calculated in-quote, a browser-based AS/NZS 5033 SLD editor that removes the separate CAD step, and NETCC-compliant branded proposals via the AI Template Builder. Founded in 2017 and used by over 1,000 solar professionals, Solar Proof uses pay-as-you-go pricing so you can trial it on real jobs alongside OpenSolar. Compare them in our Solar Proof vs OpenSolar comparison.

The bottom line

Switch from OpenSolar when a real gap, usually SLDs or battery-rebate accuracy, is costing you time or jobs, and stay when the free platform already covers your needs. Either way, move in parallel, rebuild your template first, and migrate new leads before old ones.

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Solar Proof is solar design & proposal software for residential, commercial and battery systems — helping installers build accurate, branded solar quotes in minutes. Learn more about Solar Proof.