Australian solar software has to answer a question that did not matter a decade ago. When feed-in tariffs were generous, a system that generated plenty of energy earned plenty of money and the timing barely mattered, so annual kilowatt-hours was a reasonable headline. Export prices have fallen since, retail prices have not, and the return now depends on how much of the generation the household uses at the moment it is produced. That single shift makes self-consumption the design metric, forces battery modelling into ordinary residential jobs, and renders a large part of the traditional Australian sales pitch obsolete. This guide covers what the stack has to do now.
Short version. The best solar software for an Australian business in 2026 is a stack whose core can model self-consumption and batteries hourly, because that is where the return now comes from. Buy design and proposals together, insist on STC calculation rather than a hard-coded rebate, and be wary of per-project pricing that punishes growth.
This page covers the category as a whole. For the tool-by-tool comparisons see our best solar design software Australia and best solar proposal software Australia guides.
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The Six Categories, And Which Ones Have To Talk
| Category | What it does | How tightly it must integrate |
|---|---|---|
| Design and simulation | Layout, shading, yield, self-consumption, battery dispatch | Core. Everything downstream derives from it |
| Proposal and quoting | Customer document, STCs, feed-in modelling, e-signature | Must share the design record |
| STC and rebate processing | Certificate calculation and claim handling | Should derive from the design, not a retyped size |
| CRM and pipeline | Leads, follow-up, conversion | API connection is sufficient |
| Project execution | Scheduling, install, CEC-accredited sign-off | Should receive the design |
| Monitoring | Performance, service, warranty | Standalone, connects to the installed base |
What Is Genuinely Australia-Specific
STCs under the SRES. Certificate volume depends on system size, location zone and deeming period, and the value then depends on the market price. That is a calculation, not a constant. A tool hard-coding a rebate will misquote systems in different zones and of different sizes, and since STCs materially reduce the customer’s price, the error is directly visible.
AS/NZS 4777.2 and AS/NZS 5033. Inverter grid connection requirements and array installation respectively. These are shared with New Zealand, which is convenient for anyone operating on both sides of the Tasman.
Clean Energy Council accreditation and approved product lists. These shape what can legitimately be specified on an accredited installation, and specifying off-list equipment creates a problem rather than a query.
State feed-in tariffs that have fallen a long way. The important consequence is not the rate itself but what it does to the design brief. Where export earns very little, the array should be sized closer to daytime load and the battery conversation becomes economic rather than aspirational. Our best solar design software Australia guide covers the state-by-state picture.
Where Australian Teams Overbuy And Underbuy
Overbought: per-project pricing. This deserves particular attention in Australia because several platforms use it. It looks inexpensive when you are doing a few jobs a month and becomes the largest software line in the business at volume, which is precisely when you can least afford a variable cost tied to activity.
Overbought: all-in-one suites bought early. A small residential installer needs accurate designs, honest self-consumption modelling and credible proposals.
Overbought: seats for viewers. Sales staff need finished documents rather than licences.
Underbought: battery and self-consumption modelling. The reliable gap. Many Australian stacks still produce an annual generation figure and a feed-in revenue line, which is the analysis that was correct when tariffs were generous. Without hourly dispatch modelling you cannot show a customer why storage pays, which means you either do not sell it or you sell it on assertion.
Underbought: hourly shading at module level. Annual averages mislead on obstructed roofs. Our solar shading analysis software guide covers why.
No per-project fees, whatever your volume
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The Platforms Australian Businesses Should Evaluate
1. SurgePV, the integrated core
Design and proposals from one record, with AS/NZS 4777.2 and AS/NZS 5033 coverage, SRES STC calculation, state feed-in logic, hourly self-consumption and battery dispatch, 8,760-hour module-level shading, bankable yield and Clara AI on every plan. White-label proposals with e-signature. USD 1,899 per user per year, near AU$2,900, no per-project fees.
2. OpenSolar
Free, widely used across Australia, and quick for residential layout with a presentable document. Lighter on bankable yield reporting and hourly dispatch depth. See our OpenSolar alternative comparison.
3. PVsyst
The bankable simulation reference, frequently named by lenders on commercial and utility work. No proposal layer and no Australian incentive logic. See our PVsyst alternative review.
4. HelioScope
Capable browser-based engineering for commercial and industrial rooftops. No proposal layer. Our HelioScope alternative guide covers the trade-offs.
5. Aurora Solar
Strong residential design built around US net metering and US incentives, neither of which has an Australian counterpart. See our Aurora Solar alternative comparison.
6. Spreadsheets plus a yield tool
Common in smaller practices, and the usual home of an STC figure that was correct two zones ago.
Australia Solar Software Stack Comparison
| Capability | SurgePV | OpenSolar | PVsyst | HelioScope | Aurora |
|---|---|---|---|---|---|
| Design and simulation | Yes | Partial | Yes | Yes | Yes |
| Proposal from design record | Yes | Yes | No | No | Yes |
| SRES STC calculation | Yes | Partial | No | No | No |
| AS/NZS 4777.2 and 5033 | Yes | Partial | Manual | Partial | No |
| Hourly self-consumption | Yes | Partial | Yes | Partial | Yes |
| Battery dispatch modelling | Yes | Partial | Partial | No | Yes |
| Hourly module-level shading | Yes | Partial | Yes | Yes | Yes |
| Per-project fees | None | None | None | None | None |
Worked Example: Why The Old Pitch Stopped Working
An illustrative comparison, not a specific customer project. A 6.6 kW residential system, household with modest daytime consumption, on a state feed-in rate that has fallen substantially.
| The pitch that used to work | The pitch that works now | |
|---|---|---|
| Headline | Annual generation in kWh | Share of generation self-consumed |
| Export treated as | Meaningful revenue | Low-value residual |
| Battery positioned as | Optional extra | Priced option in the main comparison |
| Sizing logic | Fill the roof | Track the daytime load curve |
| What the customer checks | The generation figure | Their actual bill |
| Does the second-year bill match? | Frequently not | Yes |
The left column is not dishonest. It was correct under generous feed-in tariffs and a lot of Australian sales material still carries it. The problem is that the customer now validates the claim against a bill that did not fall as much as the generation figure implied it would.
The right column is harder to produce, because it requires hourly modelling of generation against household load, and it requires being able to show what a battery changes. That is precisely why the software choice matters more in Australia now than it did five years ago. The analysis the market needs is no longer something a spreadsheet can do.
Who Should Choose What
- Choose SurgePV if you need hourly self-consumption, battery dispatch and STC calculation from one license with no per-project fees.
- Start with OpenSolar if you are doing a handful of straightforward residential jobs a month and want to spend nothing while building volume.
- Choose PVsyst where a lender names it on commercial or utility work, paired with separate quoting.
- Choose HelioScope if your team is engineering-only on commercial rooftops.
After signing, pipeline and follow-up sit in a CRM. QuickEstimate takes the handoff from SurgePV by API.
Built for a self-consumption market
AS/NZS coverage, SRES STC calculation, state feed-in logic, hourly self-consumption and battery dispatch, 8,760-hour shading and white-label proposals with no per-project fees.
Book a Free DemoThe Bottom Line
Australian solar became a self-consumption business and a lot of software is still measuring generation.
- Make self-consumption the headline. Export earns a fraction of retail, so annual kWh no longer predicts the customer’s saving.
- Model batteries in the main comparison. They are how self-consumption rises, and asserting the benefit without simulating it does not close jobs.
- Calculate STCs rather than hard-coding them. Zone, size and deeming period all move the number.
Frequently Asked Questions
What software does an Australian solar company actually need?
Why does self-consumption matter more than annual output in Australia now?
How should STCs be handled in software?
What standards does Australian solar software need to carry?
Do state feed-in tariffs need to be modelled separately?
How much should an Australian solar business spend on software?
Which solar software should an Australian installer start with?
Nirav Dhanani CEO, Qbits Energy
Co-founder & CEO driving Qbits Energy's product strategy and growth across India.