The cheapest solar quote often reflects what’s been left out, a proper site assessment, quality components, or a genuine workmanship warranty, rather than a genuine bargain. Australia’s recent experience with a rushed battery rebate scheme shows exactly what can go wrong when price and speed are prioritised over proper installation.
A low quote can be a perfectly fair reflection of a well-run, efficient business. It can also mean:
A generic package sized to hit a price point, rather than a system designed around your actual usage
Lower-grade components, panels and inverters with weaker performance and shorter realistic lifespans
Minimal or no workmanship warranty, separate from the manufacturer’s product warranty
No ongoing support, meaning no one to call if something goes wrong once the installer has moved on to the next job
Subcontracted or casual labour, rather than qualified trade staff who’ll still be around in a few years
You don’t need to take our word for this, it’s already played out at scale. When Australia’s federal Cheaper Home Batteries Program launched, demand surged dramatically. A University of Technology Sydney inspection programme later found that more than 60% of home battery installations inspected under the scheme were substandard, with genuine safety and compliance failures identified. Industry commentators openly described the rush of opportunistic operators as “rebate cowboys,” businesses that appeared to chase subsidy demand rather than to build a genuine solar or battery business. Reported wait times for installation stretched to two to four months as legitimate installers were overwhelmed, creating exactly the kind of pressure that attracts corner-cutting.
With solar finance a live issue ahead of this year’s election, a similar pattern could emerge here if a scheme is confirmed and demand surges. That’s not a reason to avoid solar, it’s a reason to choose your installer carefully now, before any rush begins, rather than in the middle of one when speed becomes the industry’s priority over quality.
1. Are they a registered Master Electrician or registered electrical worker, not just a “solar installer” with no wider electrical trade qualification?
2. Does the quote follow a proper site assessment, based on your actual usage data, or is it a generic package price?
3. What’s the workmanship warranty, separate from the panel or inverter manufacturer’s warranty?
4. Who do you call if something goes wrong in year three, not just during installation week?
5. Will this business still be around in ten years to honour that warranty?
A properly designed, professionally installed system typically outperforms and outlasts a rushed, cut-price one, protecting the value of what is, for most households and businesses, a genuinely significant investment. The cheapest quote on the day isn’t always the cheapest outcome over the life of the system.
Read our Solar Finance and Election Update for a continuously updated breakdown of what’s confirmed versus proposed, plus current bank loan options.
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