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GCL vs AE Solar - solar panel manufacturer comparison

GCL
China Founded 1990 Tier 1
Read the GCL review
VS
AE Solar
Germany Founded 2003 Tier 1
Read the AE Solar review
At a glance

AE Solar has the broader catalog (646 vs 232 models). GCL leads on peak efficiency at 24.50%.

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
232 646
Highest power
740 Wp 730 Wp
Best efficiency
24.5% 24.4%
Average efficiency
22.0% 21.1%
Bifacial share
65% 63%
Average warranty
28 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
GCL

GCL is a global company focusing on green energy and high-efficiency photovoltaic materials. They are known for their innovation in polysilicon and wafer technologies, with a focus on low-carbon solutions. GCL is committed to building a low-carbon PV value chain and advancing global clean energy transformation.

Founded
1990
Headquarters
Suzhou/Hong Kong, China
Annual capacity
30+ GW/year
Employees
6000+
Tier 1 bankable
Yes
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 GCL AE Solar
Catalog & Power
Panel Models 232 646+414
Max Power 740 W+10 W 730 W
Avg Power 558 W+70 W 489 W
Efficiency
Max Efficiency 24.50%+0.07 pp 24.43%
Avg Efficiency 22.03%+0.92 pp 21.11%
Reliability & Warranty
Avg Temp Coefficient -0.320%/°C -0.312%/°C+0.008
Bifacial Share 151 (65%)+2 pp 405 (63%)
Avg Warranty 28.4 yrs 29.7 yrs+1.3 yr

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

GCL skews to higher efficiency: 28% of lineup is 23%+

Power spread
Share of each catalogue in every power band

GCL offers more 600W+ panels (44% of lineup)

GCL cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (47%)

AE Solar cell technology
Share of their models by cell architecture

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

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AE Solar is a German-headquartered manufacturer founded in 2003, recognized by Bloomberg NEF in 2024 as Europe's sole Tier 1 bankable PV module producer. Operating with a production capacity exceeding 2 GW across facilities in China, Georgia, and Turkey, and employing between 501 and 1,000 people, the company has built a quality-focused reputation reinforced by the Kiwa PVEL Top Performer Award in 2025. GCL, by contrast, is a Chinese conglomerate founded in 1990 and listed on both the Hong Kong and Shenzhen stock exchanges. With more than 6,000 employees and a production capacity exceeding 30 GW, GCL ranks among the world's largest solar module manufacturers - its production scale is more than fifteen times that of AE Solar. Both companies carry Tier 1 bankability status, but the gap in industrial footprint is substantial, giving GCL pronounced supply-chain leverage and pricing power across global markets.

AE Solar's portfolio of 442 panels leans strongly toward advanced cell technologies, with TOPCon modules representing nearly 50% of its lineup and bifacial configurations accounting for 63.8% of offerings. Average panel power stands at 496.96 Wp, maximum efficiency reaches 24.43%, and the average product warranty extends to nearly 30 years - a combination that suits residential rooftop installations and small-to-mid commercial projects where long-term performance guarantees and European brand credibility are valued by lenders and end customers alike. GCL's 205-panel catalog is anchored by PERC as its leading cell technology at 36% of the portfolio, but delivers a notably higher average panel power of 551.83 Wp and a slightly higher average efficiency of 21.83%. These characteristics, combined with GCL's massive production volumes, make it well positioned for utility-scale ground-mount projects and large commercial C&I installations where high power-per-panel ratios, competitive cost-per-watt, and reliable bulk availability take precedence. GCL's temperature coefficient of -0.3242%/°C is marginally less favorable than AE Solar's -0.3130%/°C, though the practical difference is small in most operating climates.

For international buyers choosing between the two, the decision hinges largely on project scale and procurement priorities. AE Solar is the stronger fit for European residential and small-to-medium commercial projects where TOPCon technology credentials, warranty depth, and a European-origin brand carry weight with financiers and installers. GCL is better suited for large-scale procurement where the priority is volume availability, competitive pricing, and Tier 1 assurance at industrial capacity.

Generated by Claude Sonnet · 2026-05-09

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 6 GCL offers · See 4 AE Solar 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.