System size and roof fit
Compare what your roof can actually support, how the system is sized, and whether your daytime load justifies the proposal.
Commercial solar guide 2026
A practical guide to comparing commercial solar quotes, rebates, payback, finance, and installer proposals before you commit.
Free guide + 3 trusted commercial solar quotes
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Quote process
3 proposals
Guide focus
Solar ROI
What this guide helps you compare
Commercial solar is rarely just a panel price. The useful comparison is how each installer explains your site, usage profile, certificates, finance options, and expected payback.
Compare what your roof can actually support, how the system is sized, and whether your daytime load justifies the proposal.
Understand whether STCs, LGCs, tax treatment, or state programs are being modelled clearly in each installer quote.
Check how tariffs, solar self-consumption, exports, and finance assumptions affect the projected commercial return.
Use multiple proposals to compare equipment, warranties, monitoring, maintenance, and commercial installation experience.
System types
Warehouses, retail sites, farms, schools, medical centres, and offices can all have different load profiles. The guide explains common system types before you compare installer recommendations.
The common commercial setup for businesses wanting to offset daytime electricity use and export excess generation.
Useful when backup power, peak demand reduction, or stored solar energy can improve the commercial case.
A specialist option for remote sites where grid connection is unavailable, unreliable, or commercially impractical.
A practical option for larger car parks, shopping centres, airports, and commercial sites with limited roof space.
Cost and payback
The guide breaks down typical commercial system ranges and why roof access, engineering, network approval, equipment quality, tariffs, and finance can change the final proposal.
Under 30kW
Often suited to offices, shops, cafes, small warehouses, and owner-operated commercial sites.
30-100kW
A common range for larger usage sites where STC treatment, roof space, and daytime consumption can align well.
100kW+
Usually needs more detailed modelling around LGCs, engineering, metering, network approval, and maintenance.
Proposal quality
A strong commercial proposal should make the trade-offs visible, not hide the most important numbers in the fine print.
Compare proposals
Start with your business postcode and we will help match your request with trusted commercial solar installers.
We are the trusted experts in commercial solar.
We have helped 3,200+ businesses reduce their overheads, and environmental impact since 2014.
Your Solar Quotes have developed bespoke software to walk you through the process of solar comparison, ensuring that you are informed at every point of your solar journey.
Our in-house experts will create a business case, and use this to recommend the best installers from our vast network of 932 of Australia's highest regarded solar companies.
We are proud to make the process of transitioning your business to clean energy as smooth as silk.
Our mission at Your Solar Quotes is to reduce Australia’s dependence on fossil fuels and help people harness clean, renewable energy from the sun.
We have done the due diligence and worked hard to find the solar companies who will go above and beyond for our customers. Our business values transparency, fairness, customer service, and accountability, and we look for these same values in the solar companies that we recommend.
We believe the search for solar should be an educational and hassle-free experience. Using our customer feedback system, we champion the solar companies who are highly effective at what they do - ensuring that your search for solar, and our collective future is in safe hands.
Whether your goal is to reduce your business' operating expenses or meet sustainability targets, investing in commercial solar is a very sound investment. We have outlined the key benefits of installing solar on your business below:
Commercial solar systems come in various configurations, tailored to different business needs, location, and energy requirements. Here are the common system types:
Grid-Connected Solar Systems:
Hybrid Solar Systems:
Off-Grid Solar Systems:
Solar Carports
The huge energy cost savings from installing solar are bolstered by significant rebates, and tax incentives tailored to businesses. Outlined below are key commercial solar rebates available in Australia, aimed at expediting the return on investment for businesses:
The Federal Government's Renewable Energy Target encompasses two key schemes that incentivise the adoption of commercial solar power systems:
These schemes generate Large-scale Generation Certificates (LGCs) and Small-scale Technology Certificates (STCs) respectively, providing businesses with compelling reasons to invest in renewable energy solutions.
Differentiating between LGCs and STCs: STCs are applicable to solar power systems below 100kW, whereas larger systems qualify for LGCs. While both offer avenues for reducing solar costs, businesses inclined to minimising upfront expenses typically favour STCs due to their immediate benefit in the form of a point-of-sale discount, unlike LGCs which are disbursed over time.
Anticipated Phase-Out of STCs and LGCs: The Federal Government has announced a gradual reduction in the value of STCs by approximately 6-7% annually, with the scheme slated for complete phasing out by 2030. Similarly, LGCs are expected to be phased out by the end of December 2030, with their value already displaying a downward trend in recent years.
In other words, every day you put off installing a commercial solar system is costing your business thousands of dollars in potential rebates & energy savings.
To dive deeper into the available rebates, including state-level rebates and tax incentives read our dedicated page on commercial solar rebates.
The cost of commercial solar systems in Australia can vary depending on several factors, including the size of the installation, location, system components, installation complexity, and any additional features or services required. Commercial solar systems are often priced based on the cost per watt of installed capacity. Please use the following as a rough guide of commercial solar pricing.
Typical Cost per Watt (<30kW)
Typical Cost per Watt (30-100kW+) AKA 'The Sweet Spot'
Typical Cost (100kW+)
For businesses considering solar, it's crucial to:
By following these steps, businesses can make an informed decision that aligns with their specific needs and budget.
When considering your solar energy investment, you have three primary finance options: Capital Purchase (CapEx), Power Purchase Agreement (PPA), and Lease/Chattel Mortgage. Each of these options presents varying upfront costs, maintenance choices, and potential returns on investment.
A solar system can slash your organisation's energy costs, and if you opt to purchase the system outright (CapEx), you can expect an ROI of 20% - with the system typically paying for itself in under 5 years.
Power Purchase Agreements (PPAs) and loans can also be structured in a way that offers cashflow positive outcomes from day one, making your CFO very happy indeed.
We dive into the benefits of each style of system financing on our dedicated commercial solar finance page.
The Clean Energy Council (CEC) requires installers to provide a maintenance schedule to commercial customers. Great installers will often provide tailor make an O&M schedule that they will typically conduct themselves.
Your Solar Quotes recommends having an electrical inspection conducted bi-annually, which often includes solar panel cleaning. A typical electrical inspection will involve examining inverters, protective and isolation devices, fuse enclosures, mounting structures, solar modules and connecting cables for signs of discolouration or degradation.
The Clean Energy Council (CEC) is the organisation that oversees the solar industry and certifies that an installer has all necessary technical and administrative knowledge to install solar PV systems in Australia. If a solar installer is accredited by the CEC, the business owner can rest assured knowing that the installation is completed to a high level of workmanship, and that it will comply with all legal requirements in order to secure your Government Rebate.
If you’re considering installing solar power on your business, we have done the due diligence on over 932 CEC Accredited solar companies who will go above and beyond for you. Their reputations are built on years of providing extraordinary service to our past customers, and you can rest assured that your solar investment is in safe hands. By partnering with Your Solar Quotes, your business can confidently navigate the journey towards a sustainable, and cost-effective solar energy solution.
Enter your details below or give our friendly team a call on 1800 299 339, and we will arrange your obligation-free commercial solar quotes today!
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