Hiring an apprentice is one of the highest-leverage decisions a growing solar install business makes. It is also one of the hardest to undo if you get it wrong.
A tradesperson you can trial for a day. If they cannot do the work, you part ways by Friday and you are out a few hundred dollars. An apprentice is a different animal. In most states an electrical apprenticeship runs about four years, combining paid on-the-job work with formal training through a registered training organisation (Australian Apprenticeships, n.d.). You are not hiring labour. You are signing up for a three to four year relationship that ties up supervisory time from day one and only starts paying you back somewhere in the second half.
Get it right and you grow your own installer, trained to your standards, loyal because you backed them early. Get it wrong and you carry years of supervision overhead, callbacks, and the awkward conversation at the end of the term that nobody enjoys having.
Most owners hire on gut feel and presentation. The kid turns up in clean boots, looks you in the eye, says the right things, and you give them a go. Sometimes that works. But there is a better way to read a candidate, and most of the real signal does not show up on the application form or in the first interview. It shows up in the first week. This is about what to actually look for.
Why an apprentice is a different hire entirely
When you put on a qualified installer, you are buying a known quantity. You watch them work for a day, you check their licence, you call a referee, and you have a fair idea of what you are getting.
An apprentice is a bet on a person who cannot yet do the job. You are not assessing current ability. You are assessing trajectory: how fast they will learn, how they handle being wrong, whether they will still be standing on a roof in winter eighteen months from now with a good attitude.
That changes what matters. Technical knowledge is close to irrelevant at the start, because you are going to teach all of it anyway. What you are really screening for is character, curiosity, safety instinct, and learning rate. Those four things decide whether the next four years are an investment or a slow leak.
And the cost of the wrong call is measured in years, not weeks. An apprentice who is not working out is genuinely hard to exit cleanly. There are training contract obligations, there is the time you have already sunk, and there is the simple human reality that nobody wants to derail a young person’s career on a hunch. So you keep them, and the cost compounds. Better to be clear-eyed at the front door.
What the application form will not tell you
The form tells you they finished Year 12, did a pre-apprenticeship course, maybe held a casual job. Useful, but it tells you almost nothing about the things that decide the outcome.
It will not tell you their attitude to safety. It will not tell you how they react when they are told they got something wrong. It will not tell you whether they are genuinely curious about how a system works or just want a job that pays better than the servo. Those traits are visible inside the first week on site, and they are very hard to fake under that kind of pressure.
So treat the paperwork as a filter for the basics, then design the rest of your process to surface the things that actually matter.
Interview questions that surface the real signal
A good interview question does not ask the candidate to describe themselves. People are well rehearsed at describing themselves. A good question makes them reveal how they actually think. Here are four I lean on.
“Tell me about something you built, fixed, or figured out. At home, at school, anywhere.” You are listening for whether anything comes to mind at all. The hands-on curious ones light up: they rebuilt a mate’s bike, wired a sound system, pulled apart a lawnmower to see why it would not start. The ones for whom nothing comes to mind are telling you something. It does not have to be electrical. It has to show they are the kind of person who pokes at how things work.
“What do you know about how solar systems work?” You are not looking for expertise. You are looking for initiative. Did they spend twenty minutes on a search engine before walking in? Someone who turns up to a solar apprenticeship interview having read nothing about solar has shown you their baseline level of curiosity, and it will not change much once they are on the payroll.
“If you made a mistake on a job and did not notice until afterwards, what would you do?” The answer you want is immediate and simple: tell someone straight away. The red flag is any version of cover it up and hope nobody notices. In this trade a hidden mistake is a safety issue and a callback waiting to happen. How a 17 year old answers this question in a calm interview room is a fair preview of how they will behave on a hot roof when they have stuffed something up.
“What does a good worksite look like when the crew packs up and leaves?” The answer you want, fast, is clean. No debris, no offcuts in the garden, nothing left on the roof, customer’s property treated with respect. If clean is not the first word out of their mouth, the standard has not been set in them yet. You can teach the standard, but it is a lot easier to hire someone who already carries it. A tidy site is also where referrals come from, which is its own kind of money; I have written before about how the little signals on a job win or lose the next customer.
None of these are trick questions. They just move the conversation off rehearsed ground and onto how the person actually operates.
The on-site day filters more than any interview
Not every apprentice discovers on day one that roofs are not for them. But most of the ones for whom it is a genuine problem know it by the end of the first week. Heights, heat, the physical grind of carrying panels up a ladder in February: some people find out fast that this is not the life they pictured.
You do not want to find that out in month three, after you have invested in them. So build a short on-site day into your trial process, within whatever your supervision and safety obligations allow for someone not yet signed on. Watching how a candidate handles a couple of hours around a real job tells you more about physical aptitude and roof comfort than any amount of talking across a table. It is also a courtesy to them: better they learn early that the work is not for them than three years deep.
The learning rate is the signal that matters most
Here is the single most important early indicator, and it is not how much they know. It is how quickly they incorporate feedback.
An apprentice who hears a correction once, takes it on, and does not repeat the mistake is worth investing in, full stop. That is the entire game. Everything compounds from there, because every correction sticks and you are never re-teaching the same thing.
An apprentice who needs the same correction six times has a different learning pattern, and that pattern tends to carry through the whole term. It is not about intelligence and it is not about effort necessarily. Some people simply do not convert feedback into changed behaviour quickly, and on a four year contract that gap widens into real cost. Watch the learning rate in the first fortnight. It is the most predictive thing you will see.
Safety attitude sits above everything else
This one is non-negotiable, and like learning rate it is visible almost immediately.
An apprentice who short-cuts a safety step because it feels slow, or who does not ask when they are genuinely unsure about the safe way to do something, is a risk that sits above every other consideration. Not a problem to manage. A risk to your people, to the apprentice themselves, and to your business.
Under Australia’s model work health and safety laws, the employer carries a clear duty to provide young and new workers with the information, training, instruction and supervision they need to work safely (Safe Work Australia, n.d.). That duty is heaviest with an apprentice, who by definition does not yet know what they do not know. So you are watching two things: does the apprentice respect the safety rules without being chased, and are you actually set up to supervise them properly. The first is on them. The second is on you.
If you see a casual attitude to safety in the first week, do not talk yourself out of what you are seeing. It rarely improves on its own.
The supervisor burden is yours to manage
Every apprentice adds supervisory overhead to whoever is responsible for them on site. That is not a flaw in the system, that is the system. You cannot put a first-year on a roof and walk away.
So the question is not only whether the apprentice is right. It is whether the person carrying the supervision is the right person for it. The ideal supervising installer is patient, consistent, and willing to explain the why rather than just do the task faster themselves and grunt at the apprentice to watch. A good apprentice under a poor supervisor is a missed opportunity, and you will wrongly blame the apprentice for it.
Be honest about who on your crew has the temperament for it. Some of your best installers are terrible teachers, and that is fine, you just do not hand them the apprentice. Match the apprentice to a supervisor who actually wants to bring someone up.
Set a realistic timeline to value
Here is the expectation to set with everyone, including yourself. In solar, a well-supported apprentice typically becomes genuinely useful, meaning able to run through routine tasks without direct supervision, somewhere around the eighteen-month mark. Before that, they are a net cost in supervision time, and that is normal.
Say that out loud to the supervising installer so they are not frustrated at month four that the kid still needs watching.
And remember the apprenticeship sits inside a formal structure: the registered training organisation delivers the off-the-job training, that training is regulated nationally (Australian Skills Quality Authority, n.d.), and the apprentice’s pay and conditions are set by the relevant award and the National Employment Standards (Fair Work Ombudsman, n.d.). Their path to working unsupervised on electrical work, and eventually toward installer accreditation under the Solar Accreditation Australia scheme that underpins solar work in this country, runs through their electrical licensing, which is governed state by state (Clean Energy Council, n.d.). Check your own state’s licensing requirements before you make any promises about what an apprentice can and cannot do on a job. The rules differ across borders and they change.
Where this connects to running the business
The hiring decision is the start. Whether the apprentice turns into a good installer also depends on whether their on-site work is actually trackable: who briefed them, what job they were on, what they were signed off to do, and where the supervision sat. That is the boring back-office layer that decides whether your training investment is visible or invisible.
That visibility problem is part of why I am building CurrentFlow, the operating platform I wanted when I was watching install businesses lose track of who did what on which job. The idea is that rostering, job briefings and on-site documentation live in one place, so an apprentice’s work is supervised and recorded rather than scattered across texts and memory. It is not built yet, and I will not pretend otherwise. But the apprentice problem is exactly the kind of operational gap it is designed to close.
Hire for curiosity, safety instinct and learning rate. Trial them on a roof. Match them to a supervisor who wants to teach. Set the eighteen-month expectation honestly. Do those four things and you tilt the odds hard in your favour on a decision that is otherwise mostly luck.
References
Australian Apprenticeships. (n.d.). Australian Apprenticeships: How they work. Australian Government.
Australian Skills Quality Authority. (n.d.). Regulating vocational education and training. ASQA.
Solar Accreditation Australia. (n.d.). Accreditation for solar installers and designers. Solar Accreditation Australia. https://saaustralia.com.au/about-accreditation/
Fair Work Ombudsman. (n.d.). Apprentice entitlements and the National Employment Standards. Australian Government.
Safe Work Australia. (n.d.). Model WHS laws: Duties to young and new workers. Safe Work Australia.
FAQ
How long before a solar apprentice actually pays for themselves?
Expect them to be a net cost in supervision time for roughly the first eighteen months. A well-supported apprentice usually reaches the point of handling routine tasks without direct supervision somewhere around that mark, and becomes a clear asset in the back half of the term. Setting that expectation early with both the apprentice and the supervising installer takes the heat out of the slow start.
What is the single biggest predictor of a good apprentice?
Learning rate. Not how much they already know, but how quickly they take a correction on board and stop repeating the mistake. Someone who only needs to hear something once is worth investing in. Someone who needs the same correction six times has a learning pattern that tends to persist across the whole apprenticeship.
Can I trial an apprentice before committing?
Within your supervision and safety obligations, a short on-site day is the most useful filter you have. It surfaces physical aptitude and roof comfort faster than any interview, because most people for whom heights or the physical grind are a genuine problem work that out within the first week. Check what a trial is allowed to involve for someone not yet signed to a training contract before you set it up.
Do I need to worry about electrical licensing rules when hiring an apprentice?
Yes, and they vary by state. An apprentice works toward their electrical licence under your supervision, and the rules about what they can and cannot do unsupervised are set by each state’s licensing authority. Check your own state’s requirements rather than assuming what applied in another state still holds. The training itself runs through a registered training organisation under national regulation.
What if the apprentice is keen but my best installer is a poor teacher?
Do not pair them. Every apprentice adds supervisory overhead, and that overhead only pays off if the supervisor is patient, consistent and willing to explain the why. Some excellent installers are poor teachers, and that is fine. Match the apprentice to whoever on your crew genuinely wants to bring someone up, even if they are not your fastest hand on the tools.