If you ask a retailer's solar consultant what panel they would put on their own roof, most of them will name a brand the retailer happens to stock. That is not a coincidence and it isn't dishonesty either. It's the structure of the job.
The argument in this essay isn't that retailer salespeople are bad people. Many of them are deeply technical, genuinely care about getting the install right, and would give you a different answer if they were allowed to. The point is that the job they're paid to do is not the job you think you're hiring them for. You think they are advising you. They are selling you what their employer needs to move this quarter.
01The retailer salesperson is paid to sell
That sentence sounds obvious until you look at how the compensation is built. A typical Australian solar consultant working for a mid-sized retailer earns somewhere between $55,000 and $75,000 base, with the rest of their take-home coming from a stack of commissions that look something like this:
Read that table the other way. Two completely honest consultants, looking at the same roof, are paid up to $1,200 more for steering you toward the premium tier and adding a battery — even when the premium tier isn't structurally any better for your house. Multiply that by twenty jobs a month and the household-level recommendation stops being a question of belief and starts being a question of survival.
This isn't a moral failure of the individual. It's the system performing exactly as designed.
02Their inventory is the boundary of their recommendation
The deeper problem isn't even compensation. It's catalogue. A retailer salesperson can only recommend hardware their company has commercial terms with. That sentence sounds tautological until you see the actual constraint:
- A retailer typically holds agreements with 1 to 3 panel manufacturers
- And 1 to 2 inverter brands
- And usually 1 battery brand they actively promote
The total Australian-approved hardware list runs to over 70 panel manufacturers across hundreds of SKUs, 15+ inverter brands, and 20+ battery systems with current CEC listings. A single retailer's catalogue covers somewhere between 2 and 5 percent of the market. Even if they wanted to recommend the best fit for your roof, statistically the best fit is probably not in their warehouse.
A retailer's catalogue covers somewhere between 2 and 5 percent of the market. The best fit for your roof is statistically not in their warehouse.
03The "premium tier" upsell — how it really works
Every retailer offers a "good / better / best" pricing ladder. The "best" tier is where the margin is. Here's the mechanic, in three steps:
- The mid-tier system is priced just slightly above what comparable retailers charge — close enough to feel competitive in your three-quote comparison.
- The premium tier is priced $2,500 to $4,000 above the mid tier, but the hardware difference, in terms of expected 25-year output, is closer to a 4–7 percent improvement.
- The salesperson is paid significantly more on the premium tier sale. The script reframes the upgrade as "long-term thinking" or "future-proofing your inverter for batteries."
The result: the premium tier is over-recommended on roofs where the mid tier would have been the rational choice. Not because the salesperson is unscrupulous, but because the compensation gradient quietly tilts every conversation. Behavioural economists call this nudge by paycheque. We call it Tuesday.
04The reverse case (and why it loses)
Sometimes a retailer's rep genuinely believes the customer would be better served by a smaller system, a different panel brand, or — heretically — going to a competitor. We have watched this happen. We have also watched what happens next.
Those reps get coached. They get pulled aside by their team lead and asked to "stay positive on our offering." They miss targets, miss commission tiers, get moved off the high-value postcode leads. The honest behaviour is structurally punished, not rewarded. After three or four months, the rep either learns to live within the catalogue or moves to another retailer where the same dynamic begins again.
This is the part that's hardest to communicate to homeowners who liked their consultant on the day. The fact that you liked them, and the fact that they were giving you advice biased by their pay-plan, are not in tension. Both are true.
A useful test. Ask the retailer rep, "Is there a panel brand or inverter brand you would recommend over the one on this proposal?" If the answer is "no, ours is the best," they are doing their job correctly. If the answer is "honestly, I would also look at [X] from a different retailer," you have just met one of the rare honest ones — and you should still get the comparison.
05What structural independence looks like
A broker has a different incentive geometry. We earn roughly the same referral fee no matter which retailer in our panel you choose. We're not paid more to recommend the premium tier. We have no warehouse to clear, no quarterly target on a particular SKU, no SPIFF to chase.
What we are incentivised by is repeat trust. Every customer we send to a retailer becomes a data point in our ongoing diligence on that installer — quality of install, complaints, warranty follow-through. One bad install drops them in the ranking. Three bad installs move them off the panel. The whole essay on that mechanic is over here.
This is the structural point. It is not that brokers are virtuous and retailers are venal. It is that brokers are paid to be right about installers, and retailers are paid to be right about quarter-end revenue. Those are different jobs. Different jobs select for different recommendations.
06The honest summary
If you are buying solar from a retailer, you are getting useful product expertise from someone whose job description includes selling you a specific subset of the market at a specific time of year. That is not a scam. It is a sales floor. Knowing it lets you read the conversation accurately — and it lets you ask the questions that surface what's underneath.
The questions to ask are: what would change if I bought a different brand of panel, a different inverter, a smaller system, or waited a quarter? If the answer is consistent across the conversation, you are getting good advice. If the answer keeps coming back to the same SKU, you are reading the price book.