GreenSketch pricing is the easiest part to state, it's free, and the most important part to understand, because "free" here is a business model, not just a number. For installers deciding whether to build their workflow on it, how that free model works matters more than the zero on the invoice. Here's the full picture.
How much does GreenSketch cost?
GreenSketch is free. There's no software subscription and no per-project fee for its design, proposal and project-management tools, and its lead-generation feature is offered free to installer users as well. For a full-featured solar and battery design platform, that's a genuinely low barrier to entry, and the headline reason it's gained attention so quickly.
How does GreenSketch make money if it's free?
GreenSketch is funded by hardware, not software. It's owned by OSW Group, an Australian solar distributor, which states plainly that it doesn't earn revenue through software subscriptions. Instead the platform is funded through product procurement, the equipment installers buy via the OSW ecosystem. In effect, the software is funded by the hardware sales it helps generate.
What does the free model mean in practice?
It means the software and your hardware buying are linked by design. The platform stays free as long as that procurement model works, and it's most seamless when you buy through OSW, so its development naturally serves that ecosystem. For installers who already procure that way, the integration is a convenience; for those who want to keep software independent of procurement, the link is the trade-off to weigh.
Is free actually cheaper than paying for software?
Not always, because the real cost shows up in flexibility, not fees. A free, distributor-funded tool costs nothing in dollars but ties part of your buying to one supplier. A paid, independent tool costs a modest fee but keeps your hardware choices fully open. Whether "free" is genuinely cheaper depends on whether the procurement alignment helps or constrains how you'd otherwise buy.
How does GreenSketch compare to Solar Proof on cost?
They sit at opposite ends of the model. GreenSketch is free and distributor-funded; Solar Proof is funded by software subscriptions, pay-as-you-go from around four dollars per project (first projects free), with Pro plans from about ninety-nine dollars per month, and stays independent of any hardware supplier. You pay a little and keep procurement freedom, plus STCs, the Federal Battery Rebate and proposals built in. See the full Solar Proof vs GreenSketch comparison.
The bottom line
GreenSketch costs nothing because OSW Group funds it through hardware procurement rather than subscriptions. That's a real benefit if you're happy buying within the OSW ecosystem, and a genuine reason to consider a paid, independent alternative if you'd rather keep your software and your supplier separate. Judge the model, not just the price tag.
