Commercial Solar Myths Debunked!
Many Australian business owners believe commercial solar is too expensive, unreliable on cloudy days, or high-maintenance. The truth? Thanks to modern tech, flexible financing like PPAs, government incentives, and Australia’s solar advantage, commercial solar is a low-risk, high-return investment — when done right.
Debunking the Most Common Commercial Solar Myths
When it comes to commercial solar, misinformation can cost you tens of thousands in missed savings. Let’s break down the most persistent myths holding Aussie businesses back — and what the facts really say.
Myth 1: Commercial Solar Is Too Expensive
Truth: Solar is more affordable than ever — and often cash-flow positive from day one.
Many business owners are shocked when they learn they can install a full solar system with zero upfront cost. With options like:
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Lease-to-own arrangements
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Chattel mortgage financing
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Power Purchase Agreements (PPAs)
It’s possible to redirect what you’d spend on grid electricity toward owning a long-term asset. As GI Energy’s Daniel explains, “You’re taking money that you’d usually give to your energy retailer and redirecting it back into your business.”
Example ROI:
| Financing Option | Upfront Cost | Example Of Annual Costs | Average Annual Savings | Ownership After Term? |
|---|---|---|---|---|
| Lease-to-own | $0 | $8,000 | $14,400 | ✅ Yes |
| Chattel Mortgage | Low deposit | $8,000 | $14,400 | ✅ Yes |
| PPA | $0 | Pay-per-kWh | 15–25% lower energy rate | ✅ Yes |
The above table provides a basic example of how you can positively gear a small commercial solar system. The figures are based on a 39kW solar installation with no battery and are estimates only designed to illustrate how you can install solar and pay for it using money you save on you energy costs.
Myth 2: Solar Doesn’t Work on Cloudy Days
Truth: Modern panels are highly efficient in low light — and Australia gets plenty of sun.
While solar production does dip on overcast days, high-quality panels still generate energy. Australia enjoys more sun hours than almost any other developed country — making solar a no-brainer investment with superior returns. On average, depending on thyour location you can expect to produce between 3.1 – 4.9kWhs of solar energy per kW of solar panels installed, taking into consideration cloudy and wet days! Consider this commercial solar myth debunked!
The above table show expected solar production including all seasons and takes into consideration cloudy and wet days.
Myth 3: It’s Too Hard to Maintain
Truth: Reputable solar systems are low maintenance and come with inverter warranties of 10-years and solar panels warranties of 25+.
Proper installation is key and regular maintenance is advised but does not have to be expensive or cost prohibitive.
If you choose a PPA, maintenance is included. And if something goes wrong? You’re covered.
Request a quote that includes maintenance and warranty details tailored to your system.
Myth 4: Solar Panels Will Damage the Roof
Truth: Only if installed poorly — which is why installer reputation matters.
Roof damage is almost always the result of inexperienced or uninsured installers. GI Energy follows strict protocols, uses premium mounting systems, and provides warranties that cover roof damage. We’ve installed systems on every major roof type in Australia.
Your roof’s integrity is our priority.
Myth 5: It Won’t Save Enough Money to Be Worth It
Truth: Your load profile determines savings — and most Australian businesses save tens of thousands.
A typical ROI in Australia is 3–5 years — faster if you’re a large energy user. As Daniel from GI Energy explains, “You must analyse your interval data — how your business uses energy — before you even quote the system.”
Use our Solar ROI Calculator to get your custom return estimate.
Tip: Ask GI Energy for a custom load profile assessment to know what size battery (if any) makes sense for you. Request your free assessment.
Myth 6: Battery Storage Isn’t Worth It
Truth: For many businesses, batteries now deliver rapid ROI and energy independence.
Battery costs have dropped. And with advanced trading features — like charging during cheap periods and discharging during peak tariffs — you can profit from your energy.
Case Study:
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Business spend: $130,000/year on electricity
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Upgraded system: 300kW solar + 225kWh battery bank
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New bill: ~$30,000/year
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Annual savings: $100,000
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ROI: ~6 years
This commercial solar myth has been debunked long ago. Explore our Best Solar Battery in 2025 guide to learn more.
Myth 7: Too Many Cowboys in the Industry
Truth: Sadly, this one’s partly true — but easy to avoid.
The solar industry does have fly-by-nighters. That’s why it’s critical to choose an installer who:
✅ Has 15+ years of experience
✅ Offers long-term warranties
✅ Is NETCC accredited
✅ Has verifiable case studies
✅ Provides full feasibility studies with load profiling
GI Energy checks all those boxes — and more.
FAQs About Commercial Solar in Australia
How much does a commercial solar system cost in 2025?
Costs vary, but as a guide you can base fully installed cost at $1,000 per kW of solar installed for smaller systems up to 50kW. As systems get larger the economics of scale kick in and the cost per kW decreases. For example a 100kWand larger would be around $700 – $900 per kW. With financing, it can be $0 upfront.
Is solar still worth it with current electricity prices?
Yes — especially with rising energy costs. Many systems offer ROI within 3–5 years, sometimes faster.
Do solar panels need cleaning and maintenance?
Basic cleaning and annual checks are usually sufficient. GI Energy offers optional O&M packages and PPAs with full maintenance included.
Can I claim tax or rebates for commercial solar?
Yes. Businesses may be eligible for STCs, depreciation benefits, and state-based incentives. Speak to our team for tailored advice.
How do I know if my roof is suitable?
We conduct a detailed site inspection and roof condition check before any proposal.
Is battery storage right for my business?
It depends on your usage patterns. We’ll model your load profile and simulate your ROI before recommending a solution.
Key Takeaways
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Commercial solar is more affordable than ever — especially with flexible finance.
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Modern solar panels work in all conditions and come with long-term warranties.
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Maintenance is minimal if you choose the right installer.
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Battery storage is now a viable, profitable option for many businesses.
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Due diligence is critical — work with a trusted provider like GI Energy.
What to Look For in a Commercial Solar Installer
Ready to see what solar can do for your business? The commercial solar space is crowded—but not all providers are equal. Mistakes on large systems are costly and complex.
Choose an installer that:
- Asks for detailed load profiles before quoting
- Has a proven track record (15+ years preferred)
- Is NETCC Accredited
- Provides engineering-grade designs, not handwritten quotes
GI Energy has installed thousands of commercial solar systems with industry-best customer satisfaction. Request a no-obligation quote.
About GI Energy
GI Energy is an award-winning Australian solar and battery installation company with over a decade of experience. Known for ethical practices, high-performance systems, and exceptional after-install support, GI Energy is trusted by homeowners, councils, schools, and major businesses nationwide.
Written by Daniel McCabe, founder and strategist at GI Energy. With over 16 years in the energy industry — from procurement to solar and holistic energy management — Daniel is focused on helping Australians take a balanced, long-term approach to their energy needs.
