Proposals vs simulation
HelioScope outputs engineering-grade performance models. It doesn't natively produce a customer-facing proposal, so installers bolt on separate software. Solar Proof produces the branded proposal as its core job.
HelioScope is a commercial and industrial simulation engine validated to within about 1% of PVsyst, not a proposal tool. Solar Proof is the Australian platform that turns a design into a compliant, branded proposal, with STCs, the Federal Battery Rebate and AS/NZS 5033 SLDs built in.
Use HelioScope if your job is large-scale commercial simulation; use Solar Proof if your job is winning and documenting Australian installs. They aren't really rivals, they solve different halves of the workflow.
Engineers modelling 100kW to 5MW systems who need bankable, PVsyst-grade yield figures lenders will accept.
Installers who need to quote and document Australian jobs, with STCs, the Federal Battery Rebate and AS/NZS 5033 SLDs handled automatically.
Because HelioScope is a simulation engine, not a quoting platform, replacing it with Solar Proof only makes sense if what you actually need is proposals and Australian compliance. Three differences drive that.
HelioScope outputs engineering-grade performance models. It doesn't natively produce a customer-facing proposal, so installers bolt on separate software. Solar Proof produces the branded proposal as its core job.
HelioScope's financials assume US net metering and tax credits. Solar Proof calculates STCs and the Federal Battery Rebate's tiered structure inside the quote, in Australian dollars.
HelioScope rewards time spent on detailed C&I modelling. Solar Proof is built to go from address to signed-ready proposal quickly, the live platform averages about a two-minute proposal.
Every row below is a verifiable fact rather than a rating, so you can judge fit at a glance.
| Solar Proof | HelioScope | |
|---|---|---|
| Primary purpose | Design + proposals + quoting | Energy simulation engine |
| Best-fit system size | Residential to commercial | 100kW–5MW C&I |
| Pricing | From ~A$4/project; Pro from ~A$99/mo | From ~US$159–259/user/mo |
| STCs & Federal Battery Rebate | Calculated automatically | Not handled |
| AS/NZS 5033 SLDs | Built-in browser editor | Not produced |
| Customer proposals | Branded, native | Not produced natively |
| Simulation accuracy | Suitable for residential & commercial quoting | Validated to ~1% of PVsyst |
| Project limits | No cap (pay per project) | Monthly project caps on some plans |
| Free trial | Yes | No full trial (demo only) |
Full write-up: Solar Proof vs HelioScope comparison.
Keep HelioScope when bankable simulation accuracy is the point of the job, Solar Proof doesn't try to replace that, and we'll say so plainly. Specifically:
Many large EPCs run HelioScope for the engineering and a separate tool for proposals, rather than choosing one over the other.
Is HelioScope a proposal tool?
No. HelioScope is a commercial and industrial energy-simulation engine, not a proposal tool. It models performance to bankable accuracy but doesn't natively produce customer-facing sales proposals, so installers usually pair it with separate software. Solar Proof generates branded proposals natively.
What is the best HelioScope alternative for Australian installers?
Solar Proof, for installers who need compliant proposals rather than a simulation engine. It builds in STCs, the Federal Battery Rebate and AS/NZS 5033 SLDs, and prices in Australian dollars per project. For lender-grade commercial simulation, HelioScope remains the stronger specialist.
Does HelioScope handle Australian STCs and the battery rebate?
No. HelioScope is US-first, with financial modelling built around US incentives. It has no native handling of Australian STCs, the Federal Battery Rebate or AS/NZS documentation, which Solar Proof applies automatically.
How much does HelioScope cost compared to Solar Proof?
HelioScope is priced in US dollars, from about US$159 per user per month (Basic) to US$259 (Pro), with project caps on some plans. Solar Proof is pay-as-you-go from around four dollars per project in AUD, with Pro from about ninety-nine dollars per month and no project cap.
Solar Proof turns your design into a compliant, branded Australian proposal, STCs and the battery rebate included. Try it free.
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