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Suntech Solar Panels Review

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Suntech Key Facts:

Headquarters:Wuxi, China
Where are Suntech Solar panels made?China
What year was Suntech founded?2001
What year did Suntech enter the Australian market?2007
Does Suntech have an Australian presence?

Suntech’s Australian head office is located in Chatswood, NSW.

Suntech fact:

Suntech headquarters features the world’s largest building-integrated solar facade.

Suntech Solar Panels Ranged Review

Suntech made their founder the first-ever solar billionaire, but how good are their panels?

In this review, we’ll offer you the stats and info you need to assess whether the world’s largest solar manufacturer is right for you.

Their Ultra V, Ultra S, and HiPower panels are the main Suntech options installed on homes, so those are the ones we’ll dissect for you below.

Without further ado, shall we look at the efficiency and reliability of these panels?

Let’s go.

Ultra V Series

Suntech’s Ultra V solar panel comes in a couple of different sizes.

There’s their standard panel that measures close to 2.2m in length, can pump out as much as 555W and reaches efficiencies as high as 21.5%.

Then there’s the Ultra V Mini which comes in at a compact 1.7m in length, has an output up to 410W and a max efficiency of 21%. An all-black option is available if you’re wanting a more uniform look.

While Suntech’s 12 year product warranty on the Ultra V Series isn’t class leading, it’s still OK when you consider the price. They offer good performance at a budget friendly price point.

Finally, being half cut, these panels aren’t afraid of a little bit of shade.

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Suntech Solar Panels: Review and Specs

Range nameUltra V Series
Power rating*390 – 555W*
Efficiency21% – 21.5%
Product warranty12 years
Performance warranty25 years
Price range / Quality: Budget
*depending on panel dimensions

Ultra V Pro Series

The Ultra V Pro is Suntech’s flagship solar panel and builds on the Ultra V by making use of N-Type cells to deliver greater panel efficiency, as high as 22.3%.

They also have an edge over the standard Ultra V Series in terms of handling the heat, losing less of their production potential when the sun starts belting.

Click here to read about how milder days can deliver better solar system output compared to super hot days.

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Suntech Solar Panels: Review and Specs

Range nameUltra V Pro Series
Power rating*

415 – 435W*

EfficiencyUp to 22.3% *
Product warranty12 years
Performance warranty

25 years



Price range: Budget
*depending on panel dimensions

Ultra X Series

The Ultra X is Suntech’s biggest panel, both physically and in terms of power output.

Suntech claims the Ultra X Series has been designed to deliver cost savings at the time of installation.

They’re lighter, optimised for freight, and designed with ease of install in mind, meaning it’s cheaper to get these panels from the factory onto your roof.

If you want your system to cost less to install and gain savings upfront, then consider the Suntech Ultra X Series.

Just remember that they might not perform as well over the long term, impacting what you can save over the lifetime of the solar system.

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Suntech Solar Panels: Review and Specs

Range name

Ultra X Series 

Power rating*

650 – 670W*


Up to 21.6%*

Product warranty12 years
Performance warranty25 years
Quality range: Budget
*depending on panel dimensions

How much do Suntech Solar Panels Cost?

Suntech is one of the world’s biggest solar panel producers for a reason. They produce low cost, decent quality solar panels. They’re not going to send you broke, but they’re not the best your dollar can get either.

Consider your upfront cost compared to the lifetime savings a solar system can deliver you.

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Solar System Pricing

Estimated as of MArch 2023
Budget combo Mid-range combo Top-end combo
Price per watt $0.65 $0.85 $1.20
Price for a 6.6kW solar system* $4,290 $5,610 $7,920
Panel examples
JA Solar
Trina Solar
Inverter examples Growatt Sungrow Fronius

*Approximate price only, AUD retail incl. GST. Assumes pairing with a comparable quality inverter. Quoted price will vary depending on multiple factors, including your location, your home and its roof, available supply, installers etc. We recommend comparing quotes form 3 installers to get an accurate price for your individual situation.

Plenty of customers have given Suntech solar panels a 5-star review.

Their warranty, while not groundbreaking, is decent, complete with accessible Australian customer service, so repairs and replacements don’t need to stress you out IF something goes wrong.

If you want to know roughly how much your Suntech panels are likely to cost, our Solar Panel Calculator should be your next stop.

Answer a couple of quick questions, and it will give you a good idea about how big a system you’ll need for your home.

Ready for an accurate quote tailored to your home? Great.


Or, get started by requesting 3 free quotes from us, and we’ll get our most trusted installers on the job.

They’ll give you options with prices that you can choose from so that everything in your solar installation is as pain-free as possible.

Suntech Solar Panel Warranty

When it comes to warranties, there are a couple of key things to keep in mind.

When assessing warranties, consider the following:

  1. Trustworthiness of your solar technician should be top priority. Research their post-sale support and customer service reputation.
  2. Investigate additional warranties, such as workmanship guarantees.
  3. Check your installer has an Australian customer service team with a clear and simple claims process.
  4. Check the manufacturer of your inverter and panels has a presence on the ground in Australia, including offices, warehouses, etc. Choose a company with a longer history in the country for better support.

Let us get you 3 free solar quotes from local solar providers to compare. There’s no obligation to buy, so find out how much solar will be for your home with no risk. 

Suntech solar panels warranty review. Is it any good?

Suntech offers a 25-year performance warranty for its solar panels

Suntech also offers a product warranty of 12 years on their residential panels. This is the minimum we’d recommend. They also have an Australian office to handle warranty claims. That’s important.

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Suntech Solar panel warranty review:

Product Warranty12 years✅
Performance Warranty25 years✅
Australian PresenceNorth Sydney Office✅


Suntech solar panels are a good option if you’re after a cheaper system upfront with decent support on the ground in Australia.


FAQ - Suntech Solar Panels

Yes, they are a decent budget option. Their efficiency isn’t the highest, but that’s clearly not their aim. They want to create low-cost panels that get the job done, and they do that to a tee.

Suntech is considered a tier 1 solar panel manufacturer.

It’s not the best, but meets our minimum standard with a 12 year product warranty. Their Australian offices and teams are important should you need to make a warranty claim.

Here are Suntech’s Australian contact details:

Sales & Distribution Enquiries
02 8188 2450

Technical Enquiries
02 8188 2450

You can also get in touch with Suntech by filling out their contact form here.

Get Quotes for Suntech Solar Panels Now!

Now that you’ve got a better idea of what Suntech solar panels have to offer, you might be interested in picking up some of their panels for yourself.

If that’s the case, your next step is to reach out to solar installers to get quotes to compare. Your location, roof and energy pattern usage comes into play here, so get some up-to-date quotes, tailored to your home, and pick the best of the bunch.

We can get you 3 FREE solar quotes from our trusted, reputable installers.

Plus, you can download our Ultimate Guide to Buying Solar in Australia so you know you’re on the right track.

Shall we get you running on clean, cheap solar energy? Don’t delay – just click the link below.


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