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AE Solar vs Silfab - solar panel manufacturer comparison

AE Solar
Germany Founded 2003 Tier 1
Read the AE Solar review
VS
Silfab
Canada Founded 2010 Tier 1
Read the Silfab review
At a glance

AE Solar has the broader catalog (646 vs 47 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 47
Highest power
730 Wp 640 Wp
Best efficiency
24.4% 22.9%
Average efficiency
21.1% 20.6%
Bifacial share
63% 30%
Average warranty
30 yrs 30 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
Silfab

Silfab Solar is a North American leader in the design, development, and manufacture of high-efficiency, premium-quality solar cells and modules. Leveraging over 40 years of solar experience, they operate fully automated facilities in Washington, South Carolina, and Ontario, Canada. Their products are designed and...

Founded
2010
Headquarters
Mississauga, Canada
Annual capacity
1.6 GW/year
Employees
800+
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric AE Solar Silfab
Catalog & Power
Panel Models 646+599 47
Max Power 730 W+90 W 640 W
Avg Power 489 W+60 W 429 W
Efficiency
Max Efficiency 24.43%+1.51 pp 22.92%
Avg Efficiency 21.11%+0.55 pp 20.56%
Reliability & Warranty
Avg Temp Coefficient -0.312%/°C+0.030 -0.341%/°C
Bifacial Share 405 (63%)+33 pp 14 (30%)
Avg Warranty 29.7 yrs 30.0 yrs+0.3 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

AE Solar skews to higher efficiency: 9% of lineup is 23%+

Power spread
Share of each catalogue in every power band

AE Solar offers more 600W+ panels (13% of lineup)

AE Solar cell technology
Share of their models by cell architecture

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

Silfab cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (45%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AE Solar (AE Alternative Energy GmbH) was founded in 2003 by Alexander Maier and his brothers Victor and Waldemar in Königsbrunn, Germany. The company has built manufacturing facilities in China (since 2009), Georgia (since 2019), and Turkey (since 2021), reaching a combined annual production capacity of 2.5 GW. As of Q1 2025, AE Solar has achieved its 16th consecutive inclusion on the BloombergNEF Tier 1 PV Module Manufacturer list and was identified by BloombergNEF in 2024 as the sole European PV manufacturer with high bankability. Operating in more than 95 countries, AE Solar also became the first DIBt-certified Tier 1 PV module manufacturer and received the Kiwa PVEL Top Performer Award 2025. Silfab Solar was founded in 2010 and is headquartered in Mississauga, Ontario, Canada, with manufacturing plants in Toronto (Canada), Burlington WA, and Fort Mill SC (USA). Silfab is regarded as a Tier 1 bankable manufacturer and has raised over $225 million in funding, but its strategic focus is firmly on the North American market. On institutional footprint and geographic reach, AE Solar holds the stronger position internationally.

AE Solar's product portfolio spans residential rooftop systems, commercial C&I installations, and utility-scale ground-mount projects. The company's bifacial TOPCon modules have received industry recognition through the Kiwa PVEL Top Performer program, and AE Solar backs its products with a 30-year product warranty alongside a 30-year performance guarantee. Silfab's lineup centers on two main families - the Elite series, manufactured exclusively in the United States and targeting the premium residential segment, and the Prime series aimed at residential and light commercial applications. Silfab's warranty terms include a product warranty of up to 25 years and a 30-year linear performance guarantee with a stated retention rate of 87.8% at 30 years. Both companies compete on long-term reliability, but their geographic focus diverges sharply.

For international buyers outside North America - particularly in Europe and the Middle East - AE Solar is the more accessible and practically supported choice, given its European headquarters, confirmed BloombergNEF bankability, and broad distribution network across over 95 countries. Silfab is an excellent option for North American buyers who prioritize domestically manufactured panels and the supply-chain security that comes with US and Canadian production, but it offers limited presence and after-sales infrastructure elsewhere. The two brands are not directly interchangeable: AE Solar suits globally distributed projects, while Silfab is best suited to buyers within its North American home market.

Generated by Claude Sonnet · 2026-05-13

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 2 Silfab 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.