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AE Solar vs Just Solar - solar panel manufacturer comparison

AE Solar
Germany Founded 2003 Tier 1
Read the AE Solar review
VS
Just Solar
Headquarters not published
Read the Just Solar review
At a glance

AE Solar has the broader catalog (646 vs 42 models). AE Solar leads on peak efficiency at 24.43%. AE Solar leans bifacial (63% 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
646 42
Highest power
730 Wp 740 Wp
Best efficiency
24.4% 23.8%
Average efficiency
21.1% 22.1%
Bifacial share
63% 17%
Average warranty
30 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
AE Solar

AE Solar is a German Tier 1 manufacturer of high-efficiency photovoltaic (PV) modules. The company specializes in producing durable and innovative solar panels with German engineering standards, offering solutions for residential, commercial, and utility-scale applications. AE Solar operates in over 100 countries and...

Founded
2003
Headquarters
Gersthofen, Germany
Annual capacity
2+ GW/year
Employees
501-1000
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric AE Solar Just Solar
Catalog & Power
Panel Models 646+604 42
Max Power 730 W 740 W+10 W
Avg Power 489 W 491 W+2 W
Efficiency
Max Efficiency 24.43%+0.61 pp 23.82%
Avg Efficiency 21.11% 22.08%+0.97 pp
Reliability & Warranty
Avg Temp Coefficient -0.312%/°C -0.306%/°C+0.006
Bifacial Share 405 (63%)+46 pp 7 (17%)
Avg Warranty 29.7 yrs+1.2 yr 28.5 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

Just Solar skews to higher efficiency: 33% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Just Solar offers more 600W+ panels (17% of lineup)

AE Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (54%)

Just Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (52%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AE Solar is a German solar manufacturer headquartered in Königsbrunn, Bavaria, founded in 2003 by brothers Alexander, Victor, and Waldemar Maier. Starting as an installation company, it grew into one of Europe's most recognized module producers, with manufacturing plants in China, Georgia, and Turkey contributing to a combined annual production capacity of approximately 2.5 GW. As of February 2025, AE Solar has achieved BloombergNEF Tier 1 status for the sixteenth consecutive time, and in 2024 BloombergNEF identified it as Europe's sole Tier 1 PV module manufacturer with high bankability - a distinction that substantially simplifies project financing with institutional lenders. Just Solar is a Chinese manufacturer established around 2010-2011 and headquartered in Shanghai, operating factories in Zhejiang province, Macedonia, and Vietnam. The company positions itself as a 2 GW producer and holds TUV (IEC61215/IEC61730), CE, Australian CEC, and UK MCS certifications, but does not appear on the BloombergNEF Tier 1 list, limiting its visibility among institutional investors and project financiers. On the basis of market standing and financial credibility, AE Solar holds a clearly stronger institutional footprint.

AE Solar's portfolio spans residential rooftop, commercial and industrial (C&I), and utility-scale ground-mount segments across more than 95 countries. Its Meteor module series earned a five-star rating in PV Magazine's module test and a Kiwa PVEL Top Performer Award in 2025, providing independent evidence of above-average durability under stress conditions. Just Solar addresses a broadly similar range of applications, from small residential systems to larger commercial projects, with its Macedonian production facility offering some European manufacturing exposure that may appeal to buyers navigating import tariff considerations.

For most international buyers - particularly those requiring bank financing or long-term performance assurance - AE Solar is the stronger default, backed by consistent Tier 1 recognition, third-party lab validation, and a mature European corporate structure. Just Solar is a credible option for cost-sensitive residential or commercial deployments where institutional bankability is not a hard requirement, though the absence of Tier 1 status warrants additional due diligence before committing to larger-scale procurement.

Generated by Claude Sonnet · 2026-05-15

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 4 AE Solar offers · See 1 Just Solar offer

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.