This page is for installers and EPC teams in Australia choosing solar proposal software. Short answer: for residential proposals with NETCC disclosures, STC and battery rebates in a free core app, pick OpenSolar; for pay-per-project residential and commercial proposals with NETCC templates, pick Solar Proof.
If you quote Australian solar and battery jobs, check how each tool handles STCs and the battery rebate. An STC (small-scale technology certificate) is a certificate an eligible system earns under a government scheme. Owners can trade it for a discount or a later payment. The battery rebate is the Cheaper Home Batteries program, which gives STCs for home batteries. Also check the NETCC (New Energy Tech Consumer Code), the consumer protection code for solar and battery sellers.
OpenSolar and Solar Proof document STC, battery rebate and NETCC support for residential proposals. Amperage lists tariff and certificate modelling for commercial sites. SolarBill Quote documents catalogue-based quotes with a GST (goods and services tax) breakdown. EasySolar states STC and NEM (National Electricity Market) feed-in tariff support. A feed-in tariff is the rate you are paid for power you send to the grid. EasySolar prices in US dollars. SurgePV lists financial modeling and proposal generation. Its published scope does not state Australian incentive, feed-in or consumer code outputs.
This is a desk comparison of what each vendor publishes, checked October 2026. We have not run side-by-side tests. Local rules below come from the Clean Energy Regulator. Tool facts come from each vendor’s own site. For the wider rules, see our Australia solar compliance guide. The earlier version of this page also listed Aurora Solar, Energy Toolbase and Solargraf. Aurora Solar and Energy Toolbase are not compared here. We found no Australian STC or consumer code documentation on the pages we read. That does not mean you cannot use them in Australia. Solargraf is not compared on this page. solargraf.com returned HTTP 403 (access denied) to automated reads, including a headless browser (a browser run by a program), read October 2026.
Criteria used: STC calculation, battery rebate, NETCC disclosures, feed-in, export and payback lines, and AUD (Australian dollar) price. Disclosures are the facts a seller must tell the customer.
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Best-For Picks for Australia
- Residential proposals with NETCC disclosures, STC and battery rebates in a free core app: OpenSolar. Its support pages document a NETCC Disclosures section in Australian proposal templates. They also document an STC incentive and a Cheaper Home Batteries incentive. The core app is free. From 16 April 2026 the vendor charges for API Access (a way for other software to connect) and for connectors.
- Pay-per-project residential and commercial proposals with NETCC templates: Solar Proof. Its site states STCs by postcode and system size. It also states the Cheaper Home Batteries rebate and NETCC-compliant templates. It states Victorian VEECs (Victorian Energy Efficiency Certificates) for eligible commercial solar. Prices start from $4 per project.
- Commercial and battery sites quoted from the customer’s bill: Amperage. It states hourly modelling against network tariffs and demand charges (fees based on your highest power use). STCs, LGCs (large-scale generation certificates), VEECs and the NSW PDRS (Peak Demand Reduction Scheme) appear on separate lines. It does not place individual panels.
- STC and NEM feed-in tariff support in an AI design tool: EasySolar. Its site says it supports STC rebate calculations, state-level incentives and feed-in tariffs across all NEM regions. It is priced in US dollars.
- Catalogue-based quotes with a GST breakdown for small installers: SolarBill Quote. Its page lists a product catalogue, job cards, customer quotes with GST and purchase orders. It costs $199 per month.
- Roof model to bill of materials and proposal in one product, priced per user: SurgePV. It documents roof modeling, shading, yield (how much energy the system makes), financial modeling, bill of materials (BOM, the list of parts) and proposals. Ask for the Australian outputs in a demo. Its published scope and pricing page do not state STC, battery rebate, feed-in or NETCC handling.
Australia Solar Proposal Software Comparison Table
Listed in A to Z order. This is not a ranking. Pick by the situation above. Prices were checked October 2026 on each vendor’s own page.
| Tool | Best for | Price | Free or paid | Decisive scope fact |
|---|---|---|---|---|
| Amperage | Commercial and battery, bill first | Pro $799 per month or $7,990 per year, per company, AUD, no GST charged | Free plan (1 project), paid Pro | Models roof faces, not individual panels |
| EasySolar | AI design and offer, multi-market | USD 79 per month (Business+, 1 user; extra user USD 25) | Paid, 3-day trial with card | Names STC rebates and NEM feed-in tariffs |
| OpenSolar | Residential proposals, no budget | Core app free; API Access and connectors charged from 16 April 2026 | Core app free | NETCC Disclosures section in Australian templates |
| Solar Proof | Pay per project, NETCC templates | $4 per project; Pro from $99 per month (excludes GST) | Paid, 5 free projects | STCs by postcode and size, plus battery rebate and VEECs |
| SolarBill Quote | Catalogue quotes with GST | $199 per month (currency not stated) | Paid, 7-day trial with card | Quote, job card and purchase order from one job |
| SurgePV | Roof model to BOM and proposal, per seat | USD 1,899 per user per year (1 user); AUD price not published | Paid, guided demo | BOM and proposal generation in scope; no Australian output stated |
Australia Criteria Matrix
Each cell is Documented, Partial or Not stated, based on the vendor pages we read in October 2026. “Not stated” means the pages we read do not say, not that the feature is missing. There are no scores or weights.
| Tool | STC calculation | Battery rebate | NETCC disclosures | Feed-in, export and payback lines | Price in AUD |
|---|---|---|---|---|---|
| Amperage | Documented (STCs, LGCs, VEECs, NSW PDRS) | Documented (Cheaper Home Batteries) | Not stated | Partial (payback and network tariffs; “Retail rates never shown”) | Documented |
| EasySolar | Documented | Not stated | Not stated | Partial (feed-in tariffs across NEM regions; export limits not stated) | Not published (USD) |
| OpenSolar | Documented (incl. 100 kW to 1 MW) | Documented | Documented | Partial (payback, NPV, IRR, LCOE, tariffs and an Export Limit setting documented; no Australian state limits named) | Documented (core app free) |
| Solar Proof | Documented (by postcode and size) | Documented | Documented | Partial (tariffs read from bills; feed-in not stated) | Documented (AUD, excl. 10% GST) |
| SolarBill Quote | Documented (“real STC”) | Partial (“battery rebates”; program not named) | Not stated | Not stated | Partial (currency not stated) |
| SurgePV | Not stated | Not stated | Not stated | Not stated | Not published (USD) |
Two things stand out. First, no vendor page we read names state export limit rules. An export limit caps how much power you can send to the grid, and the retailer must disclose it. OpenSolar documents an Export Limit design setting without naming any state’s limit. Second, the tools differ most on NETCC templates and the battery rebate. An Australian installer should ask about these first.
Tool Entries
Amperage
Best for: commercial and industrial sites quoted from the customer’s bill, with a battery option.
Not the right choice if: you need panel-level layout. The FAQ says it models roof faces, not individual panel placement. It is also not the right choice if you need a residential proposal with consumer code disclosures (not stated).
What the vendor documents: The tool reads a bill and flags fields it is unsure about. It models solar and battery combinations hour by hour over a typical weather year. It uses the nearest Bureau of Meteorology climate file. It uses network tariffs approved by the AER (Australian Energy Regulator), with demand charges. It covers incentives for STCs (plus battery STCs under Cheaper Home Batteries), LGCs, VEECs and the NSW PDRS. Each incentive is shown with its rule and certificate price. Outputs are a PowerPoint deck, an A4 PowerPoint proposal and a customer link. The STC line covers solar up to 1 MW from 1 October 2026.
Price (checked October 2026): Free plan for one project; Pro is $799 a month or $7,990 a year, per company, with five seats. Prices are in AUD and no GST is charged because Amperage is not registered for GST.
Limitations: its site describes commercial solar and batteries. We did not read a residential workflow.
Vendor link: amperage.app.
EasySolar
Best for: installers who want AI-assisted design and offers across several markets, with Australia on the vendor’s list.
Not the right choice if: you need an AUD price. The price list shows US dollars. It is also not the right choice if you need NETCC templates or the battery rebate, because neither is stated on the pages we read.
What the vendor documents: Its site says it supports STC rebate calculations, state-level incentives and feed-in tariffs across all NEM regions. You can design from an address, photo, orthophoto (an aerial photo made to match a map) or drone image. It makes proposals as an interactive page and branded PDF. It also offers payback analysis (how long the system takes to earn back its cost), a generated electrical diagram and a CRM (customer tracking tool).
Price (checked October 2026): USD 79 per month for the Business+ plan with one user, USD 25 per month for each extra user. A card is required to start the trial.
Limitations: the price list shows US dollars only, and no AUD price is published.
Vendor link: easysolar.app.
OpenSolar
Best for: residential installers who want Australian proposal templates with consumer code disclosures and rebate lines. The vendor describes the core app as free.
Not the right choice if: you need to move data in and out through the API or connectors. These are charged since 16 April 2026. It is also not the right choice if you need Australian state export limit rules built in. Its help centre documents tariffs and an Export Limit design setting, per a help article. The pages we read name no state limits.
What the vendor documents: its STC article says systems up to 100 kW use the years-remaining deeming period. Systems over 100 kW and up to 1 MW use a fixed 5-year period from 2026. The deeming period is an estimate of how many years a system will generate renewable energy. The article treats residential STCs as GST-free. Commercial STCs attract GST. Its battery article describes a Cheaper Home Batteries incentive that applies by itself between 5 kWh and 100 kWh. New Australian classic templates include a NETCC Disclosures section. It has a default installation time of 4 to 6 weeks and wording for a 10-business-day cooling-off period (a time when the buyer can cancel). You can edit both. Proposal formats are Swipe, Scroll, Bespoke and Quick Quote, with availability enabled by region. Quick Quote is a fast quote path for simpler service and non-solar jobs. Its Featured Figures article lists payback and discounted payback as proposal figures. It also lists NPV (net present value), total ROI (return on investment), IRR (internal rate of return) and LCOE (levelized cost of energy). These measure cost and return over time.
Price (checked October 2026): the core app is free of charge for solar professionals, per the vendor. An OpenSolar post of 16 February 2026 says it charges for API Access and supported connectors. The per-project API fee is on OpenSolar’s API page. The 16 February 2026 post says accounting connectors are billed as a monthly fee per organization. The charges start 16 April 2026. Enterprise Services are optional and paid: Support US$500 per month, Customize US$1,350 per month, and Enterprise custom. Premium imagery is pay per image, and the app shows the price.
Limitations: the vendor tells you to replace the placeholder warranty details in the NETCC section before sending a proposal.
Vendor link: opensolar.com.
Solar Proof
Best for: installers who quote a few jobs a month and want Australian rebate lines and consumer code templates without a subscription.
Not the right choice if: you want a flat price whatever your volume. Pro tiers are metered by a monthly kilowatt quota, with top-ups of $45 per 100 kW. It is also not the right choice if you need documented feed-in and export limit handling (not stated).
What the vendor documents: design on aerial imagery with shade analysis. It lists STCs by postcode and system size, the Cheaper Home Batteries rebate, and VEECs for eligible commercial solar. It lists NETCC-compliant proposal templates, and an AI template builder. It also has a single-line diagram editor, which draws a simple picture of how the system is wired. It has a bill-upload feature that extracts tariffs and usage. It also shows side-by-side finance options in one proposal. It states commercial tariffs, IRR and NPV for commercial and industrial designs.
Price (checked October 2026): $4 per project pay as you go with 5 free projects on a new account; Pro from $99 per month, excluding GST. The Pro tier table says prices are in AUD, excluding 10% GST.
Limitations: we did not find the 1 October 2026 mid-scale STC change on the pages we read.
Vendor link: solarproof.com.au.
SolarBill Quote
Best for: small installers who price from a product catalogue and want a quote, a job card and a purchase order from one job.
Not the right choice if: you need design on imagery or yield simulation. The page describes a pricing and quoting tool. It is also not the right choice if you need consumer code disclosures (not stated).
What the vendor documents: a catalogue of 270+ products with private cost prices. It also has a job card without prices for the installer, a customer quote showing GST, and a purchase order. Its product menu says Quote builds “accurate quotes with real STC and battery rebates”.
Price (checked October 2026): $199 per month, shown as an add-on, with a 7-day trial that needs a card. The page does not state the currency. The vendor’s installers page lists the quote tool at $199 per month on its own. It is $149 per month bundled with its Scan product. The vendor calls it an optional add-on.
Limitations: the page does not name the Cheaper Home Batteries program or describe feed-in or payback lines.
Vendor link: solarbill.com.au.
SurgePV
SurgePV is our product.
Best for: teams that want roof modeling, shading, yield, financial modeling, bill of materials and proposals in one product. It is priced per user. Teams should confirm Australian outputs in a demo.
Not the right choice if: you want a self-serve trial. SurgePV offers a guided demo. It is also not the right choice if you need an AUD price in writing before talking to sales, because the pricing page lists US dollars. Finally, it is not the right choice if you need documented STC, battery rebate or NETCC handling. OpenSolar and Solar Proof document them. Outputs support design and documentation. They do not replace approval by the responsible engineer, authority, lender or utility. SurgePV’s published product scope does not list a CRM. It is not a monitoring (live system tracking) or ERP (company-wide business software) product.
What the vendor documents: 3D roof modeling, array layout, shading analysis and energy-yield modeling. It also lists financial modeling, electrical workflow support, bill-of-materials output and proposal generation. See solar proposal software for the product page.
Price (checked October 2026): $1,899 per user per year for 1 user, $1,499 per user per year for 3 seats, $1,299 per user per year for 5 seats, in US dollars.
Limitations: results depend on source data, assumptions and equipment models. The published scope does not state STC calculation, a battery rebate, feed-in tariffs, export limits or NETCC templates.
Vendor link: surgepv.com.
Australia Rules That Shape the Choice
STCs and the deeming period. The Small-scale Renewable Energy Scheme gives certificates for eligible systems. The Clean Energy Regulator’s calculation page publishes postcode zone ratings. It also publishes a deeming period that falls by one year each year until the scheme ends in 2030. The period is 5 years for 2026, 4 for 2027 and 3 for 2028. A proposal that hardcodes a per-kilowatt rebate (a fixed number) is wrong in some postcodes and in every new year.
Mid-scale systems from 1 October 2026. The Regulator’s mid-scale page says eligibility expands from 100 kW to 1 MW for systems installed from 1 October 2026. The deeming period is a fixed 5 years. Applications open in mid to late November 2026. Owners can choose STCs or Renewable Electricity Guarantee of Origin certificates. Components must be on the Clean Energy Council approved list.
Battery STCs. The same calculation page lists a battery STC factor that tapers, which means it gets smaller as the battery gets bigger. It is 100% up to 14 kWh, 60% from 14 to 28 kWh and 15% from 28 to 50 kWh. A battery proposal needs to apply the taper.
What the retailer must tell the customer. The Regulator’s retailer page lists written details to provide before the sale. These cover the accredited designer and installer, and system performance, with the circumstances in which the system may not perform. They also cover feed-in tariffs and export limits, the expected payback or savings, and any conflicts of interest. This is a good test of a proposal tool. Does the output carry these lines? Our export limits guide explains how network operators differ.
Accreditation and consumer code. The same page says installers must be accredited by Solar Accreditation Australia. Systems and components must be on the Clean Energy Council approved list. OpenSolar and Solar Proof both describe the New Energy Tech Consumer Code (NETCC, formerly the CEC Code) in their Australian templates.
Where to check. The Clean Energy Regulator (cer.gov.au) runs the scheme. State and territory governments set feed-in tariffs, according to its scheme page. So check your state and retailer before pricing exports.
What to Ask in a Demo for an Australian Proposal
Bring one 6.6 kW roof with a 10 kWh battery. Ask the vendor to show five things. These are the STC count for your postcode and install year, the battery STCs after the taper, the NETCC disclosures, the feed-in tariff and export limit lines, and the price in AUD with GST. A vendor that cannot show them has not documented them for Australia. That is true whatever its feature list says.
How We Ordered These Tools
SurgePV publishes this page and is a vendor on this list. Its entry uses the same vendor-page sources and template as every other tool here.
We did not rank these tools. They are listed in A to Z order, and the best-for picks come from the matrix above.
- STC calculation: it sets the rebate line that most Australian customers compare first. We did not assess whether any tool’s count is correct.
- Battery rebate: battery quotes depend on the tapered factor. We did not assess whether any tool applies the taper.
- NETCC disclosures: the consumer code sets what a proposal must disclose. We did not assess whether any template meets the code.
- Feed-in, export and payback lines: the Regulator lists these among the pre-sale information. We did not assess accuracy of any tariff data.
- Price in AUD: a local price shows what an Australian buyer pays. We did not assess discounts or negotiated quotes.
Sources and Dates
Vendor pages were read in October 2026. They are Amperage (home, pricing), EasySolar (home, price list), OpenSolar (the support articles linked above, free), Solar Proof (home, pricing), SolarBill Quote (page) and SurgePV (pricing). The OpenSolar help centre returns 403 (access denied) to curl (a command-line tool that fetches pages), so we read those articles in a browser. Government sources are the four Clean Energy Regulator pages linked above.
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Book a Free DemoMore Solar Software Guides to Compare
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Frequently Asked Questions
What is the best solar proposal software in Australia?
It depends on the job. From what the vendors publish, OpenSolar and Solar Proof document STC, battery rebate and NETCC disclosure support for residential proposals. Amperage is built for commercial quotes that start from the customer’s bill. EasySolar states STC and NEM feed-in tariff support. SolarBill Quote builds catalogue-based quotes with GST. SurgePV lists proposals and financial modeling, but its published scope does not state Australian incentive or consumer code outputs.
Does solar proposal software calculate STCs and the Cheaper Home Batteries rebate?
OpenSolar, Solar Proof and Amperage each state both. EasySolar states STC calculations. It does not mention the battery rebate on the pages we read. SolarBill Quote names STC and battery rebates in its menu. The Clean Energy Regulator publishes the deeming period (5 years for 2026 installations). It also publishes a battery STC factor that gets smaller as the battery gets bigger. Check that a proposal uses current values.
Is there free solar proposal software in Australia?
OpenSolar says its core app is free, but the vendor charges for API Access and supported connectors from 16 April 2026. Amperage has a free plan for one project. Solar Proof gives 5 free projects on a new account before its pay-as-you-go price. SolarBill Quote and EasySolar offer trials that need a card.
What must an Australian solar proposal tell the customer?
The Clean Energy Regulator lists written details a retailer must give before the sale. This covers the accredited designer and installer, and system performance with the circumstances in which the system may not perform. It also covers feed-in tariffs and export limits, expected payback or savings, and any conflicts of interest. OpenSolar and Solar Proof also document templates for the New Energy Tech Consumer Code.
How much does solar proposal software cost in Australia?
OpenSolar’s core app is free, but the vendor charges for API Access and supported connectors from 16 April 2026. Solar Proof is $4 per project pay as you go. Its Pro plan is from $99 per month excluding GST. Amperage Pro is $799 per month or $7,990 per year per company in AUD with no GST charged. SolarBill Quote is $199 per month. EasySolar is USD 79 per month for one user. SurgePV lists USD 1,899 per user per year for one user.
Can proposal software handle commercial systems up to 1 MW in Australia?
From 1 October 2026 the Small-scale Renewable Energy Scheme covers solar systems from 100 kW up to 1 MW. The deeming period is a fixed 5 years. Applications open in mid to late November 2026. OpenSolar and Amperage state the 100 kW to 1 MW STC rule on their pages. Solar Proof states commercial and industrial designs with commercial tariffs. We did not find the mid-scale change on the pages we read.
