Leapton Solar Panels Review: Tier 1 Panels Made In China By Japanese Company

Leapton solar panels - made in China

Recently we’ve had a number of calls from Australians who believe Leapton panels are made in Japan. Just to be clear: Leapton solar panels are made in China.

Update 9th of March 2021: Leapton Solar recently opened an office in Australia and their phone number is 1800 717 636.  They told me they can handle warranty claims for all Leapton panels in Australia.  (If you you need to make a warranty claim first get in touch with your installer.  But if they’re no longer around you can contact Leapton directly.)

This article is about Leapton Solar panels.  Because this company is headquartered in Japan I’d like to give them a big…


But since they’re actually made in China, perhaps that should be…

Ni Hao!

I suppose I could create a hybrid greeting for Leapton Solar, such as “Ni wa” or “Konnichi hao“, but that’s just likely to annoy people. 

If you are considering getting Leapton solar panels, the good news is:

  • They are tier one.
  • They have a 15-year product warranty (UPDATE March 15, 2021now 25 years for panels installed in Australia)
  • None of the installers I talked to who use them have had a single failed panel so far.
  • They are competitively priced.

The drawbacks are:

  • They’ve only been installed for under two years in Australia.
  • They don’t have an Australian office (May 5, 2021 update: now they do).  This makes the company that imported them responsible for the manufacturer’s warranties.

Last year Leapton shipped around 600 megawatts of solar panels, making them a small tier one producer.  They have two panel factories in China and are building a third one there, so we may see more of them in the future. (Update May 5, 2021 – Leapton’s annual production capacity has expanded to 2.15GW, with more to come).

If you’d like more details, read on.1

What’s In A Name? 

I don’t know why they decided to call their company Leapton but, according to their slogan, it might be because they intended to work overseas from the start:

All I can say is, it’s lucky they’re a Japanese company because “Leap from China to the world” wouldn’t sound too auspicious at the moment.

I have no idea what the logo is supposed to be.  It looks as though it was designed during a bit shortage and appears to be an off-kilter space invader.

Company Locations

Leapton Energy co. ltd.  was founded in 2012 in Kobe Japan and in the same year began operating in China.  Kobe is famous for giving cows beer and massaging them to make Kobe beef.  It is also a fashion centre that is considered second only to Paris — but generally only by Japanese people.  Those old enough to have played the first Pokemon as a child may recall it was hit by a disastrous earthquake in 1995. 

Most of the stereotypes we have about Japan come from the Kanto region, which contains Tokyo, but Kobe is located lower down in Japan’s Kinki region.  But while Kanto usually dominates the popular imagination, there are still many who consider the whole of Japan to be Kinki.  The Kinki area is also known as Kansai.   

Kanto person on the left.  Kansai person on right.  The Kanto person wears a suit and tie while the more laid back Kansai person does not.  The Kansai person has darker skin due to a sunnier climate and occasionally going outside.  The Kanto person speaks the kind of Japanese you learn in school while the Kansai person speaks the kind of Japanese that makes you cry if you learned Japanese in school.  Both have huge eyes and ears to allow them to detect Godzilla and other monsters at great distances.

Leapton Solar opened a Chinese factory in 2015 in Jiangyin city in Jiangsu Province.  It’s able to produce up to 300 megawatts of solar panels a year.  As far as I can tell, in the three years they existed before they started making stuff, Leapton acted as a project manager for solar farm construction. 

The next year they opened a Chinese factory to make solar racking.  I haven’t heard of it being used in Australia. 

In 2017 Leapton built a second solar panel factory in Changshu, Jiangsu with 250-300 megawatts of annual capacity.  According to the company website, it has the most advanced automated production line in the world.  It must be truly amazing and capable of being in several locations at once, because multiple panel manufacturers claim to have the most advanced production line in the world.  I suspect that, in reality, whoever has the newest large production line probably has the most advanced one.

Leapton also apparently makes solar inverters, but I couldn’t find any claim of a dedicated Leapton factory for them, so I doubt they’ll turn up in Australia any time soon. 

Japanese Style Production

If you go to the Leapton Solar website you’ll see that while they don’t hide the fact they manufacture in China, they really emphasize that they’re a Japanese company.  For example, this is one of the images that flashes up on their homepage:

Leapton Solar - Japan

As you can see, the panel on the right uses advanced new blur technology to increase its use of indirect light.

As anyone who has a photographic memory for Japanese temples can tell you, that’s not located in Kobe or the Kinki/Kansai region at all.  It’s actually Senso-ji, one of the oldest temples in Japan and located in Tokyo.  It has nothing to do with Kobe and is clearly only there because they wanted the site to look ultra-Japanese. 

It’s hard to describe how weird this is.  It’s like a Melbourne company deciding to use a picture of the Sydney Harbour Bridge to promote themselves.  Other images Leapton Solar uses include Mt Fuji, which is located deep in the Japanese stereotype region of Kanto, and the Nara feral deer autonomous zone, which is at least has the benefit of only being one hour’s drive from Kobe.

Leapton solar panels - Tier 1

Do not trust it! It wants to eat your grains!

But we can’t really blame them for trying to associate their product with Japan.  Australian companies do the same whenever they use unrelated pictures of kangaroos, Uluru, a didgeridoo, or a dog called Blue.  What really matters is — do Leapton solar panels have the high-quality engineering we associate with Japan?

After an exhaustive, frame-by-frame analysis of a Leapton Solar Youtube video of their newest Chinese production line, I have discovered the following: 

Leapton solar panel factory

Using a stick to keep you focused on the task you are doing, and so everyone else can see you are focused on the task you are doing, is very Japanese.  You could say it helps them stick to it.  They are clearly proud of their stick, as it shows up on average once every 48 seconds in the video.  If you want to see the whole thing, here it is:

They have an older video but I can’t recommend it, as the stick only shows up once every 57 seconds.

While some may not regard the presence of the stick as definitive proof Japanese manufacturing culture has been successfully transplanted to China, it’s the best I can come up with from these videos.  But cultural exchange is a two-way street and I would say that judging by the blurred panel in the temple image above and the broken warranty link I mention below, Leapton Solar has successfully adopted some elements of Chinese web design, while — regrettably — leaving out the hilarious English.

Tier One Solar Panels

Leapton solar panels are tier one, which means large financial organizations consider them reliable enough to bankroll solar farms that use them.  It’s not a direct measure of quality, as the financial health of the company is a major consideration, but it’s not possible to become tier one while producing crap panels so it is a useful indicator of quality.  


Leapton panels have a 15-year product warranty and a 25-year performance warranty. (Update March 15, 2021: the product warranty is now 25 years for panels installed in Australia).

Overseas the product warranty is often more important because the wording of the performance warranties is usually crap.  However, in my opinion, Australian Consumer Guarantees mean that every panel with a 25-year product warranty has to be supported for that long, regardless of what the warranty small print may say.  But note I am not a lawyer, so that’s not a professional opinion.   It’s just my goddamned opinion. 

In the recent past, I would have said a low-cost tier one panel having a 15-year product warranty was excellent.  But product warranties have been improving all over the place, so now I’ll just say it’s very good.  I like long product warranties because I think they probably reflect how confident a manufacturer really is in the reliability of their panels.

The performance warranty promises they will have a minimum of 80.7% of their original output after 25 years.  While this isn’t bad, it is around the minimum for tier-one solar panels these days. 

Here is a link to their warranty document that works.

Australian Office

UPDATE May 5, 2021: Leapton has established an Australian office, which is located at 965 South Road, Melrose Park SA 5039 (Tel: 1800 717 636)

Leapton Solar does not have an Australian office.  This means the company that imports them into the country is responsible for the manufacturer’s warranties.  If this importer goes bust then the manufacturer’s warranties disappear.  While it is possible for the importer to make an agreement with the manufacturer where the manufacturer promises to provide warranty support, if the importer goes bust that agreement may not mean anything. 

This means that if you get Leapton panels it’s very important to find out who the importer is. It’s also very important to write it down because you’re not likely to remember if you need to make a warranty claim in 14 years time. 

Half Cut Solar Panels

While Leapton Solar used to make panels with full cells, as is common these days they have transitioned to only making panels with half-cut cells.  This has become popular because, while it only results in a small increase in efficiency, robots can perform the extra work required at little additional cost while — most importantly — maintaining panel reliability despite doubling the number of connections required.

This change is a little confusing because a standard-sized residential panel now uses 60 full cells but has 120 half cells.  Here is a picture of what Leapton’s 60 cell, monocrystalline, half-cut solar panels look like (UPDATE May 5, 2021 – the current range of Leapton products available in Australia can be found here):

Leapton solar panels - 60 cell, half-cut

 I have pointed out in red the button that does not take you to the warranty when you click on it, which is a bit of a worry.  These panels are just a few centimetres longer than the usual 164 to 165-centimetre length of a standard 60 cell panel.

Rooftop solar generally uses the standard size 60 cell panels rather than the larger and more cumbersome 72 cell panels.  But half cut cell technology has made it easy to produce an in-between size that uses 66 full cells to make 132 half cut cells:

Leapton solar panels - 66 cells, half-cut

Leapton 66 cell panels with 132 half cells.

It will have to be seen if this size becomes popular for roofs, but installers should beware of advertising that boasts about their high wattage while leaving out they are larger and heavier than standard size solar panels. 

Polysilicon And Monosilicon

Leapton produces both polysilicon and monosilicon solar panels, but you’re more likely to see monosilicon ones here.  Monosilicon panels are slightly more efficient, which is useful when a household wants to make the most of limited roof space.  Their monosilicon panels also suffer slightly less decline in output due to temperature.  This is measured by their Temperature Coefficient of Pmax, which is the percentage decrease in output per degree increase in panel temperature above 25 degrees Celsius.  The lower this figure the better.  For their 60 cell panels it is:

  • Polycrystalline:  -0.41% per degree Celsius
  • Monocrystalline:  -0.36% per degree Celsius 

A Temperature Coefficient of Pmax of around -0.4% per degree is fairly typical.

LeTID Degradation Unlikely

Leapton panels are PERC, which means they can potentially suffer from LeTID or Light and elevated Temperature Induced Degradation.  But because the solar industry appears to have gotten on top of this problem, I think it’s very unlikely this kind of deterioration will cause them to fall below the minimum output their performance warranty allows.  However, if you want to be 100% certain your panels won’t suffer from LeTID, the only way to be sure is not to buy PERC panels. 

Definitely Not A Crap Panel

Leapton solar panels are definitely not crap. If they’re on your roof you probably have little to worry about.  My main concern is — due to not having an Australian office — the importer is responsible for the manufacturer’s warranties.  While there is no way to be certain a tier-one manufacturer will be around long term and so be able to honour their warranties, most of us will have even less of a clue if an importer is likely to be around long term.   

Another issue is these panels have not been installed in Australia for long.  Leapton Solar panels were first approved by the Clean Energy Council in October 2018.  While I haven’t heard of any problems yet, if it takes a few years for them to develop under Australian conditions we’d have no way of knowing about it yet.  While I think it’s unlikely they will develop problems, it is a possibility. 

In my opinion, you would be far better off with Leapton panels than with no name panels.  If Leapton Solar’s low cost allows you to avoid installing crap or allows you to afford a larger solar power system, they could be well worth it.  But if it’s within your budget I suggest you consider paying a small premium for well-supported solar panels, that have been sold in Australia for a long time and have an Australian office.  

Oh, and avoid any solar salespeople running around claiming (or implying) Leapton Solar panels are made in Japan. There is nothing wrong with a Japanese company making panels in China, but there’s everything wrong with lying to get a sale. 


  1.  If you wouldn’t like more details but are really bored and a bit puerile, then read on anyway but mentally substitute the words “my farts” whenever you see the phrase “Leapton panels”.
About Ronald Brakels

Many years ago now, Ronald Brakels was born in Toowoomba. He first rose to international prominence when his township took up a collection to send him to Japan, which was the furthest they could manage with the money they raised. He became passionately interested in environmental matters upon his return to Australia when the local Mayor met him at the airport and explained it was far too dangerous for him to return to Toowoomba on account of climate change and mutant attack goats. Ronald then moved to a property in the Adelaide Hills where he now lives with his horse, Tonto 23.


  1. With the company not having a liable presence in Australia, any associated warranties are not worth the medium on which they are written.

    I had two domestic rooftop photovoltaic systems installed by the same company; the first in October 2013, the second in February 2014. The two systems operated in parallel, while they did operate.

    Both systems involved CEC approved components; ReWatt inverters, and Linuo panels.

    While they worked, they seemed to work reasonably well.

    After less than three and a half years of being installed, the second ReWatt inverter that was installed, failed.

    I then found that the retailer had gone into liquidation, six months earlier.

    Neither ReWatt nor Linuo had, and, have, a liable presence in Australia, and so, the panels and inverters had no valid warranties.

    The ReWatt inverters have now been replaced (it took eighteen months to get the inverters replaced), at my expense, and the panels have, as they have had, no valid warranty.

    Any company can go broke – Pan Am went broke and disappeared. McDonnell-Douglas went broke. Sears went broke.

    So, unless a PV systems inverter manufacturer, and a PV systems panels manufacturer, have an established and reputable liable presence in Australia, their products should be avoided, as their “warranties” are not worth anything.

    • Hello I am thinking about getting the
      Leapton solar panels.
      But I am curious what are the panels made from.

  2. William Wright says

    I recently had a 6.6.kw/hr system installed by Solarblu from Dapto. During the quotation phase I was told they had been installing Leapton panels for ten years and had never once experienced any failures. The information contained within this email exposes this to be a lie, that they have only been used in Australia for two years, not the ten years I was told. Shame on Solarblu for lying to customers. I find this extremely disappointing

    • Philip Symons says

      Hi William at SOLARBLU we have been installing solar in the local area for ten years and have never had any panel failures. We conducted extensive research into the Leapton brand before taking them onboard as we don’t want to ruin our reputation. We have installed approximately 5000 Leapton panels now with a perfect record. Perhaps there was a misunderstanding regarding our length of service to the Illawarra and the length of time we have been installing Leapton panels. I apologise for the misunderstanding. Cheers, Philip Symons , SOLARBLU

  3. ALWAYS check out the alternatives!
    When I got grid-connected (did so only for the money: 66cents FiT) I did a deal (signed contract) with the installer personally to warranty the products/installation himself. (I’d been involved with solar since 1980 and was dubious about the not-well-known panels he personally inspected and imported from China.)

    The panels worked perfectly (even better than their rating) for 10 years until the house was destroyed by fire. Six months after installation the (expensive at the time) inverter packed it in ( a ‘known fault’ as it turns out) and was replaced at 8am the following morning ~ including a 2-hour drive and an apology from the manufacturer via email from China.

    Try getting service like that from anonymous ‘solar providers’, approved or not. One good test of integrity is to ask them for their home address! Not only did Simon do that (he was running his business from home) he showed me a similar system he’d installed on his parents’ house. A local family, and by coincidence we’d gone to the same school decades earlier. A good across the board piece of advice from someone who’s survived for 70-odd years. MAKE IT PERSONAL. ALWAYS.

  4. ps I’d seen many mishaps with inverters, which could cost as much as a good used car, by that time. and after that incident decided to KISS. Instead of buying a hugely expensive bit of junk over which I had no control I found alternatives. eg. have SEVERAL different’suitably-sized inverters serving different circuits.
    I currently have a 300-watt inverter (From SupaCheap with a 3-year warranty) running two fridges and set on separate timers due to their different uses. They (the inverters) cost me$78 each. Earlier on I had three 30-watt inverters (the car plug-in type) running separate circuits for lights and a tiny TV which ran on 6 watts. (That’s as big as Finn’s 40-inch set if you sit close enough. And on and on… for nearly 40 years.

    Why would anyone with half a brain spend tens of thousands of dollars on a gee-whiz system set up by a complete stranger, have NO control over any of it…. and no comeback-if-necessary because (a) Nobody is responsible and (b) the ‘provider’ (accredited or not) has gone belly-up. and (c) such failure is permitted under the terms of the ‘fineprint’ in any case?

    If anyone wants to discuss options/possibilities/etc. they can get me here:- lucitallATy7mail.com

  5. Jim Berry says

    That logo contains only one gold disc, so was presumably much cheaoer than our $10M “golden dandelion” logo ?

    • Ronald Brakels says

      That’s not meant to be Australia’s logo. It’s actually a stylized gold atom. Because Au stands for gold someone got it confused with the Australia logo we were supposed to have and sent it off after capitalizing the “u”. Maybe there’s a gold producer somewhere with the Australian logo we were supposed to have.

      • Leapton now has an Australia office and Leapton Pty Ltd are now the importer, 60 cell 440W to be released soon and the new factory is open they are now at 2.2GW, time to rewrite the blog!

        • Ronald Brakels says

          I won’t rewrite the blog post, but I will put an update at the top saying they now have an Australian office. Unfortunately, I have looked for their number and haven’t been able to find it. If you can give it to me I’ll give them a ring.

          • Lewis Sheppard says

            Leapton Australia 1800 717 636

            Please also note 2 nd factory now open 2.2GW.

            Hoping the blog can be up dated now

          • Ronald Brakels says

            Gave them a ring. They seemed pretty helpful. Thanks for the number.

          • Lewis Sheppard says

            Just curious about the opening statement also about the Japan/ China, there are also 3 well known and recommended Korean solar companies on your recommended list who also manufacturer in China too, I can not se this being highlighted on the opening statement.

          • Ronald Brakels says

            If you don’t like Chinese made panels you are free to not have anything to do with them. But my advice is to look at individual manufacturers and not attempt to judge panel quality by nation of origin.

          • Lewis Sheppard says

            Thanks for the update Ronald, I just think the opening statement about Leapton what appears in Google is a bit harsh that’s all, the potter non Chinese companies who have factories in China do not have this as an opening statement. Why you cannot just include it in the manufacturing locations instead like you have with the Korean companies listed who also manufacture in China, Leapton will have a 60 cell 440 w in April which will be the 2 nd manufacturer to introduce a 60 cell 440 w to Australia

        • Do you have a link to this info?
          I just checked their website and all I can see it Japan, China and Ukraine?

  6. Trevtrac says

    So you just pedalling more Chinese made rubbish

  7. Sorry to say if it was made in Japan, I would probably purchase it, since its not that will not be happening. I have steered clear of Chinese product, especially after the hundreds & hundreds of Trina solar panels, I have ,and am still now replacing. I am limited to five brands of solar panels, None of which are manufactured in CHINA. China loves coming into our country, here in Australia, and they love peddling their wares, but be warned, soon as you mention the WARRANTY WORD, most of them head for the hills, negotiating their responsibilities, to us the installer, and the consumer, so buyer beware.

  8. Jeff Dekker says

    Gday Ronald
    Thanks for your interesting read. I am so close to signing on the dotted line for these panels. The salesman ( from MLEC Electrical WA ) has convinced me to go 15 panels at 440. Apparently they are the latest.
    I said so close because I’m still not 110% covinced they are very good. He could talk very well.
    Is there an alternative Brand I should be looking at?
    There are so many brands, it becomes so confusing

    • Ronald Brakels says

      Hi Jeff

      Our Solar 101 Guide has a chart showing all the solar panels we feel confident about recommending. Just scroll down and you’ll see it:


      Leapton panels are tier one, which is good evidence they will be reliable, but we don’t know enough about their long term performance or how they respond to warranty claims to put them on the chart. If you want to have a little more confidence the panels will work without problem or that you will receive assistance if they fail under warranty you can go with one from our chart, but if you decide to go with Leapton they are not rubbish panels and hopefully will last long term.

      • Jeff Dekker says

        so one more question-
        Would 15 panels at 440w which equals 6.6 kw or 20 at 330w which eqauls 6.6 be the same to you or would you have a difference of opinion?
        I have signed for the 15 but can still change my mind.

        • Ronald Brakels says

          It should make no difference. The 440 watt panels will be large, but as long as they are installed correctly it shouldn’t be an issue.

    • William Wright says

      SolarBlu from Dapto installed 20 Leapton panels LR158-M-60 330w in May last year for me. Although it is only just over one year ago, I have experienced no problems and quite happy my electricity account is in credit

  9. Lewis Sheppard says

    Unfortunately for the purpose of the Chart, in the last 3 years Leapton has had no warranty issues in Australia unlike some other brands, as being the Major distributor for Leapton and other brands if that day finally comes where we have a faulty Leapton panel I will ensure the solar retailer updated this blog..

    Leapton has also been recently tested for the Darwin market where it has passed the wind test better than most which also backs up the quality of the panel

  10. I must admit I am far from being familiar with solar and all it’s jargon. I have done a fair bit of reading about solar brands and the like recently, however I find a lot of sources contradict each other.

    I have just received a quote for a Leapton 6.6Kw lp158 with 18 panels that is using a Sofar Invertor.

    It would be appreciated If someone could give me an approximate as to what this should cost, installation included.

    I just want to see if the quote was fair or inflated more than usual.

    • Trevor Glen says

      Hi Brian,

      Neither Leapton nor Sofar are brands we can recommend – our advice is to stick to brands on our recommended charts here: https://www.solarquotes.com.au/solar101.html#panelchart


      • Sorry trevor I’m a little puzzled. Exactly why don’t you recommend Leapton? Is the 25 year complete warranty a concern? Is the Australian office a concern?

        Brian, they are a very good quality panel with a much longer complete warranty than other chinese brands. They have a proven history in Australian conditions now and are very good quality panels.

        The sofar inverter I’m not as confident about, see if they will install Sungrow or Growatt instead

        • Trevor Glen says

          Hi Philip,

          I’ve spoken to the team on this and Leapton panels are tier one and do appear to be quality panels, we just don’t have enough data on them yet. We hope that we will have no problem adding them to our list of recommended panels in the future.


          • Lewis Sheppard says

            Hi Trevor

            We have tried many times to update your company, we have sent a lot of information and Australian contacts, updated data-sheets, proof of Leapton HQ is in Tokyo Japan etc etc Leapton is a very popular product in the Australian market, after nearly 3 years in Australia 0 Warranty issues or failed panels, they are probably the most installed panel year to date in WA, we have shipped 100MW to Australia this year, we are confused why you are still reluctant to recommend, some of the manufacturers on your list have way less market share than Leapton, plus more than one company on your list has had several issues with hotspots occurred within 3 years after installation, what else do you require from Leapton, a sponsorship perhaps? Have a great day.


            Mr Leapton.

          • Trevor Glen says

            Hi Lewis,

            Thanks for your response.

            We take a variety of factors into consideration when adding someone to that chart and we take our time to do so. Your company has indeed done everything required at this time and so please leave it with us.


  11. Hi Philip

    Thanks for your advice. From the reading I have done I had reservations about the Sofar invertor so it’s good to know you share a similar opinion.
    I will ask about the invertors you have suggested.

    If anyone has a ballpark figure as to how much it should cost to install a Leapton 6.6Kw lp158 with 18 panels that is using a Sofar invertor, please let me know.

    Thanks for the feedback and advice.


    So i have gone LEapton panels im a bit nervous but with the extended warranty i thought they would not do that without good reason, im getting a good inverter (sungrow) so im confident it will be all good, ill update after installation

Speak Your Mind

Please keep the SolarQuotes blog constructive and useful with these 4 rules:

1. Real names are preferred - you should be happy to put your name to your comments.
2. Put down your weapons.
3. Assume positive intention.
4. If you are in the solar industry - try to get to the truth, not the sale.
5. Please stay on topic.

%d bloggers like this: