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Leapton vs AEET - solar panel manufacturer comparison

Leapton
Japan Founded 2012 Tier 1
Read the Leapton review
VS
AEET
Headquarters not published
Read the AEET review
At a glance

Leapton has the broader catalog (119 vs 5 models). Leapton leads on peak efficiency at 23.32%. Leapton leans bifacial (49% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
119 5
Highest power
720 Wp 200 Wp
Best efficiency
23.3% 15.7%
Average efficiency
22.2% 14.9%
Bifacial share
49% 0%
Average warranty
29 yrs 25 yrs
01

The two companies

Company facts, not datasheet figures
Leapton

Leapton Energy, headquartered in Japan, is a global leader in the solar PV industry, specializing in Tier-1 solar modules, battery energy storage systems (BESS), and inverters. With over 10 years of experience, Leapton Energy's products are now available in more than 70 countries worldwide.

Founded
2012
Headquarters
Kobe, Japan
Annual capacity
3+ GW/year
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Leapton AEET
Catalog & Power
Panel Models 119+114 5
Max Power 720 W+520 W 200 W
Avg Power 546 W+356 W 190 W
Efficiency
Max Efficiency 23.32%+7.62 pp 15.70%
Avg Efficiency 22.18%+7.28 pp 14.90%
Reliability & Warranty
Avg Temp Coefficient -0.307%/°C -
Bifacial Share 58 (49%)+49 pp 0 (0%)
Avg Warranty 29.5 yrs+4.5 yr 25.0 yrs

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Leapton skews to higher efficiency: 7% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Leapton offers more 600W+ panels (32% of lineup)

Leapton cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (88%)

AEET cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (100%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AEET Energy Group GmbH is a Germany-based photovoltaic wholesaler and full-service partner that has been active in the European solar market for a number of years. Rather than operating its own large-scale cell or wafer production, AEET positions itself as a sourcing and distribution intermediary that works alongside established module manufacturers to supply residential and commercial installers - primarily in the German-speaking European market. No Tier 1 or BloombergNEF bankability listing has been found in publicly available sources, and no independent production capacity figure in gigawatts is confirmed. Leapton Energy, by contrast, is a Japanese-headquartered company with its manufacturing base in Changshu, China. It has held recurring BloombergNEF Tier 1 listings through Q4 2024 and has been named a Top Performer in the Kiwa PVEL PV Module Reliability Scorecard, giving it a notably stronger institutional footprint.

Product offerings reflect this structural difference. AEET's catalog, as found in third-party databases, includes monocrystalline and multicrystalline modules in a wattage range consistent with older PERC-era designs - suited to small residential rooftops and light commercial retrofits in markets where the company has distribution reach. Leapton's current lineup centers on N-type TOPCon bifacial modules with efficiencies confirmed up to roughly 22 percent and power classes reaching into the high hundreds of watts, making the brand competitive for both residential premium installs and mid-scale commercial ground mounts. Leapton is generally positioned as a value-oriented Tier 1 option, priced below better-known Chinese giants while still clearing reliability benchmarks in independent testing.

For a buyer evaluating the two brands in 2025, Leapton is the more documentable choice: its reliability testing results, Tier 1 history, and independently verified product specifications offer a clearer due-diligence trail. AEET may suit buyers within its specific European distribution network who want a single-source partner for modules, inverters, and installation support, but the lack of publicly verifiable bankability data makes it harder to justify for project-financed or larger-scale deployments.

Generated by Claude Sonnet · 2026-05-17

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 8 Leapton offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.