Leapton Solar Panels: An independent review by Solar Choice

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Note: Solar Choice is not a solar installer and has no financial or other incentives to promote any product brand over another.

Leapton Solar- Company History

Leapton Solar is a solar panel and mounting system manufacturer which was founded in Kobe, Japan. Dating back to 2012, Leapton is a later entrant to the solar panel manufacturing market with many of the bigger names in the industry setting up in the early 2000s.

Leapton have quickly established a tier 1 bankability rating by Bloomberg NEF establishing key trust in the company’s longevity and warranty offer. The company has a published manufacturing capacity of 660MW per year which makes them a boutique manufacturer, however they have plans for a new 2GW manufacturing plant which would make a big increase in volumes. Leapton solar panels are manufactured in Changshu, China and they distributed solar panels across the globe.

In 2018 Leapton commenced efforts to sell their solar panels in the Australian market, received the mandatory Clean Energy Council approval in 2019. They have established an office in Melrose Park, S.A. to provide after-sales service, technical support, and market Leapton Solar panels in Australia.

Key Indicators

 Leapton Solar Panels
Bloomberg Tier 1 RankingYes
PV Evolution Labs Top Performer (2024)Yes (4 out of 7 tests)
Office location in AustraliaYes

What is a Bloomberg Tier 1 Solar Panel?

Bloomberg’s infamous tier 1 ranking is NOT a measure of Solar Panel quality in any way. It is simply an indication of the bankability of the manufacturer based on publicly released information on the financial health of the company. This should give you an idea if the company is a large, well-known manufacturer.

See full list of Bloomberg Tier 1 Solar Panels

 What is PV Evolution Labs Top Performer?

PV Evolution Labs with support from DNV GL independently test solar panel reliability. The tests are voluntary, with solar panel manufacturers paying to participate in the testing. This testing process is internationally renowned and is an accurate reflection of the solar panel’s performance.

Leapton are named as a top performer in the test of 4 performance tests(thermal cycling, mechanical stress sequence, hail stress sequence and LID+LETID) in the latest 2024 report.

See full list of PV Evolution Labs Top Performing Solar Panels

 Why is office location in Australia important?

Most solar panel manufacturers entering the Australian market first set up their distribution channels and worry about customer service later. This has led to many unhappy customers who are left trying to contact Chinese head offices to claim their 15-year product warranty.

Relying on your solar installer is not always an option as we’ve seen many residential solar installers (including the large ones) go out of business well within the lifetime of the systems they are installing.

 How much do Leapton Solar Panels cost?

Based on Solar Choice’s database we have provided the below-average costs as an indicative guide. These prices include:

  • Full turnkey Solar System with Leapton Solar Panels
  • Installation from a pre-vetted reputable installer from Solar Choice’s network
  • The STC rebate and GST
System SizeAverage Fully Installed CostPrice per Watt
6kW$5,02984c per watt
10kW$7,98480c per watt

Important Note: Prices will vary depending on location, inverter brand and which installer is used

Compare solar quotes from up to 7 local installers now.

Leapton Solar Panels – Points of Difference

There are many solar panels out there, what makes Leapton’s solar panels stand out?

Highly accredited solar panels

Along with the mandatory Clean Energy Council accreditation, Leapton solar has passed TUV, PID, Chemitox, SGS, CQC, GAMCORP, and other international authorized certifications meaning their solar panels have passed a variety of different qualification hurdles. This extends significantly beyond the minimum requirements for a solar panel to be sold in Australia or other global markets.

Leapton’s 25 Year Product and Performance Warranty

All solar panels come with a product and performance warranty. The product warranty is designed to cover manufacturing faults in the panel that may lead to damage or malfunction and is typically 10 years for most mainstream solar panel manufacturers. Leapton’s Solar Panels come with an industry leading 25 years reflecting their intent to be a premium option for customers.

The performance warranty guarantees a certain level of output for the lifetime of the panel – typically guaranteeing 80-82% of the nameplate output after 25 years. Leapton offers a 25 year performance warranty with a guaranteed output of 80.68% for monocrystalline modules and a guaranteed output of 80.7% for polycrystalline modules. This is towards the lower end of what is offered on the solar panel market for power degradation.

The Australian warranty document references both the Australian and Chinese contact details for making a warranty claim. Importantly they do have a local phone number (1800 717 636) that can be contacted by customers.

You can access their full warranty document here.

Leapton Solar Panel Technologies

Leapton Solar currently have 76 solar panels approved by the Clean Energy Council in Australia. This is a requirement to be eligible for the federal STC solar rebate.

Leapton currently have 10 solar panel options listed as available on their Australian website which range in size and output. We have listed some of their solar panels aimed at the residential market below:

Leapton solar panel image LP158158-M-60-MH

Solar Panel Model – LP158*158-M-60-MH

The output of this solar panel ranges from 325W to 340W with a solar panel efficiency of up to 20.1%.  The solar panel uses 158mm by 158mm monocrystalline solar cells which have been half cut to increase the efficiency. Whilst holding up fairly well on their technical specs, this solar panel is one of Leapton’s least impressive models that is currently available on the market. Like most of their panels, customers can choose from a silver or black Aluminium frame.

Solar Panel Model – LP166*166-M-66-MH

Leapton solar panel image LP166166-M-66-MH.

Featuring a larger cell size and 6 more monocrystalline solar cells in total, the LP166*166-M-66-MH panel has a rated output of 385W to 415W. The 9 bus bar cell technology and other improvements have enabled the efficiency of the panel to reach up to 20.5% which is edging towards one of the best options on the market.

This solar panel also has a low temperature co-efficient of -0.28%/degC which makes the panel suitable for some of the northern parts of Australia which experience very hot days.

Solar Panel Model – LP166*166-M-60-MH

Leapton solar panel image LP166166-M-60-MH

Very similar to the above model, the LP166*166-M-60-MH utilises 6 less solar cells in its 60 cell design. This means it is 9% smaller in dimensions which can be more flexible to cater to certain residential roof space. The overall output potential of the solar panel is also 9% smaller ranging from 360W to 380W.

These panels come with black frame options and all black cell options which can provide an aesthetically pleasing look to a roof space.

Pros and Cons of Leapton Solar Panels

  • Tier 1 listed manufacturer
  • Industry leading 25-year product warranty
  • Australian office and support staff
  • Shorter company history than most of their competitors
  • Only selling in Australian market since 2019
  • Not many large-scale project examples in Australia

Leapton Solar Panel Specifications (common modules)

Cell Number54*2 pcs72*2 pcs
Cell TypeMonocrystallinePolycrystalline
Power Output390Wp360Wp
Max Power Voltage30.42V39.7V
Panel Efficiency19.95%17.90%
Annual Power Degradation0.7%0.7%
Dimensions1721 x 1134 x 35 mm2008 x 1006 x 35 mm
Weight24.5 kg22.5 kg
Product Warranty15 Years15 Years
Operational Temperature Range-40°C to 85°C-40°C to 85°C

Example of a Leapton Solar Project

Leapton Solar has internationally provided panels to a large number of commercial and industrial scale projects, particularly in China and Japan. The below image shows a 4 MW Leapton solar farm project in Thailand which was installed in 2019.

Leapton project 4 MW

Read more product reviews from Solar Choice

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Jeff Sykes

Reviews from Australians who have installed Leapton Panels

Rated 4.80 from 10 reviews
2nd August 2023
WA - 6211
5kW system


30th March 2023
VIC - 3461
2kW system

24th March 2023
VIC - 3264
5kW system

So far so good

21st March 2023
VIC - 3107
4kW system

Seem to work as advertised, but they cost me more money than quoted on lower efficiency panels

23rd August 2022
WA - 6065
6kW system

Japanese unit now available in Australia. Good warranty. They have an office here.

30th July 2022
WA - 6172
6kW system

Appears to work well.

7th July 2022
WA - 6210
6kW system

So far providing great yield

5th March 2022
SA - 5251
10-15kW system

Seems to be very efficient

10th February 2022
NSW - 2155
6kW system

9th August 2021
WA - 6169
6kW system

Seems like a world wide product