Top 20 Questions To Ask Your Solar Installer

At Australian Solar Quotes, we look out for our customers. We are here to make sure you don’t get taken for a ride by an unreliable solar installer – which is too often the case for Aussies around the country. It can be hard to pick the good guys from the bad, especially if you don’t know what to look out for.

Check out our Solar Power Buyers Guide for the inside solar industry knowledge, or GET 3 QUOTES now!

Here are few quick questions to ask your installer to make sure you’re getting the best service possible.

  1. How long has your business been operating & installing solar panels for?
  2. Who is your clean energy council accredited installer and designer?  What is their CEC (clean energy council) number?
  3. How many solar panel systems have you installed?
  4. Can I see some of your customer testimonials?
  5. What is the time frame in which you aim to have the solar panel system installed?  Is there a guarantee on this time frame?
  6. What are your company’s terms and conditions of business?  Ask for a copy!
  7. What type of warranty / guarantee on installation do you offer? Could you walk me through it?
  8. Do you import the solar panels and components or do you purchase from an Australian Wholesaler / Distributor?
  9. Who do I contact if there is a fault of defect with the inverter, solar panels, components or installation?
  10. Who do I contact in an emergency if I can’t get in contact with your company? Write down the number and process!

Top 10 Questions – Parts & Components

  1. Is the solar inverter transformer-less or does it have a transformer. What are the advantages / disadvantages?
  2. Where is the solar inverter manufactured?
  3. What is the product warranty for the solar inverter?
  4. Does the inverter have duel MPP Tracking? (this feature is necessary for solar panel installations with multiple strings facing different directions)
  5. Is the inverter an indoor or outdoor inverter?
  6. Where are the solar panels manufactured?
  7. What is the product warranty for the solar panels?
  8. How long have you been supplying this brand of solar panels?
  9. Do the solar panels have mono-crystalline or poly-crystalline cells?
  10. What is the solar panel’s cell efficiency?

Find Out the Rebates & Incentives You’re Eligible For

solar energy facts

NOW IS THE BEST TIME TO TAKE ADVANTAGE OF THE SOLAR PANEL REBATES – BEFORE GOVERNMENT CHANGES AT THE END OF THE YEAR!

Electricity prices are still on the rise due to the ever increasing demand for electricity throughout Australia. As a result, solar panels are becoming more and more popular throughout the residential, commercial and industrial sector. Although the Australian Governments solar rebate and incentive programs are changing, the generosity is consistent and by far the best option to tackle heightening energy prices.


Don’t forget to print this page and have it handy for when your sales representative conducts an onsite assessment

  • https://www.australiansolarquotes.com.au/author/darryn-van-hout Darryn Van Hout

    Hi Glen,

    Thank’s for commenting and congratulations on the 14 years in the industry. Your defiantly a pioneer. I agree with what you are saying however being at the forefront of consumer care, we are through hundreds of questions each month by Australian’s. One of the more common ones is “What’s the difference between mono-crystalline and poly-crystalline solar panels?” Unfortunately, we can’t list them all however we put together some of the common ones to assist consumers when they make the switch to solar power. Your feedback is welcomed and appreciated. Thanks for following ASQ.

  • Glenn Letourneau

    As a solar installer of nearly 14 years I have to say that it’s great that you’ve compiled this list for the public to not get fleeced… anything that helps solar be installed by reputable and knowledgeable installers is good for the industry as a whole. However I would say that several of the questions on here are irrelevant to the customer, for example “mono vs poly-crystalline modules” or what the panel’s “efficiency” is, so long as the system delivers the promised amount of kWh/year and holds true to the promised ROI. Also, without a frame of reference for what good answers to some of these questions would be, a customer still isn’t really going to know when the answer they’re being given is true/good… or “a bunch of smoke…” as we say. But again, super cool of you to put this together for folks… I would just suggest giving examples of good answers to some of these questions for the folks who won’t know when they’re being lied to… which is to say everyone you created this list for 😉

    With much respect.
    ~Glenn from VT USA

    • https://www.australiansolarquotes.com.au/author/darryn-van-hout Darryn Van Hout

      Thanks for commenting and congratulations on the 14 years in the industry. You’re definantly a pioneer. I agree with what you are saying however being at the forefront of consumer care, we are through hundreds of questions each month by Australian’s. One of the more common ones is “What’s the difference between mono-crystalline and poly-crystalline solar panels?” Unfortunately, we can’t list them all however we put together some of the common ones to assist consumers when they make the switch to solar power. Your feedback is welcomed and appreciated. Thanks for following ASQ.

    • Glenn Letourneau

      Interesting… I guess you all have a much more informed/curious consumer base than we do here in the US… rarely would someone over here randomly ask the difference between Mono and Poly-Crystalline modules out of the blue… everyone is the states just wants to know how much money it will save them… and occasionally you get someone who genuinely wants to know how it works, but those are fewer and far between these days… solar is all about the green you keep in your wallet nowadays, versus the green way of living that it used to be. Keep up the good work over there across the pond eh 😉

    • https://www.australiansolarquotes.com.au/author/darryn-van-hout Darryn Van Hout

      Unfortunately, you are correct Glenn. It’s not about sustainability anymore. It’s about the money.

The Author

I took an interest in the Australian energy sector close to ten years ago and since then have monitored the trends, technologies and direction of the Australian Energy Market. I was drawn to the Australian solar market in 2008 and since then have worked heavily in the field. I am partnered with national and international solar energy companies, from manufacturers of solar panel and inverter technology, online software developers that introduce tools to quote, monitor and manage solar power systems and media organisations who like myself, closely monitor the solar and renewable energy sector.

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