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Fellow Energy vs AE Solar - solar panel manufacturer comparison

Fellow Energy
Türkiye Founded 2020 Tier 1
Read the Fellow Energy 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 13 models). AE Solar leads on peak efficiency at 24.43%.

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
13 646
Highest power
590 Wp 730 Wp
Best efficiency
22.9% 24.4%
Average efficiency
21.6% 21.1%
Bifacial share
54% 63%
Average warranty
27 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
Fellow Energy

Fellow Energy is a solar energy technology manufacturer founded in 2020 in Gaziantep, Türkiye. The company specializes in the research, development, manufacturing, and sales of photovoltaic modules and solar cells, all of which are fully designed and produced domestically. Fellow Energy is recognized as a Tier 1 solar...

Founded
2020
Headquarters
Gaziantep, Türkiye
Employees
350+
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 Fellow Energy AE Solar
Catalog & Power
Panel Models 13 646+633
Max Power 590 W 730 W+140 W
Avg Power 491 W+2 W 489 W
Efficiency
Max Efficiency 22.90% 24.43%+1.53 pp
Avg Efficiency 21.60%+0.49 pp 21.11%
Reliability & Warranty
Avg Temp Coefficient -0.320%/°C -0.312%/°C+0.009
Bifacial Share 7 (54%) 405 (63%)+9 pp
Avg Warranty 27.3 yrs 29.7 yrs+2.4 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)

Fellow Energy cell technology
Share of their models by cell architecture

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

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, incorporated as AESOLAR Energy GmbH, with production facilities in China, Georgia, and Turkey. The company earned its 16th consecutive inclusion on the BloombergNEF Tier 1 PV Module Manufacturer List in February 2025 and was identified in 2024 as Europe's sole solar module producer with high bankability ratings - a distinction that carries significant weight with project lenders and institutional investors. Annual production capacity stands at approximately 2.5 GW. Fellow Energy is a considerably younger company, founded in 2020 in Gaziantep, Turkey, with three domestic factories and a stated combined capacity of around 2.1 GW. Independent review platforms have attributed a Tier 1 bankable status to Fellow Energy as well, though its track record and institutional name recognition in international markets are still developing relative to AE Solar's established position.

AE Solar's flagship offering is the Meteor series - N-type TOPCon modules available in both monofacial and bifacial configurations, spanning a power range from roughly 420 W to over 725 W. The series is suited to residential rooftop systems, commercial and industrial (C&I) projects, utility-scale ground-mount arrays, and emerging applications such as agrivoltaics and vertical solar installations. The Meteor module earned a five-star rating in PV Magazine's independent module test and the Kiwa PVEL Top Performer Award in 2025, and the company backs all panels with a 30-year product warranty - well above the market norm. Fellow Energy produces modules in the 380-460 W range for residential and commercial buyers from its Turkish facilities, using domestically designed and produced cells, though detailed third-party performance assessments are less readily available for this brand.

For most international buyers - particularly those financing larger C&I or utility-scale projects - AE Solar is the more defensible default, supported by verified bankability credentials, independently validated product performance, a broad TOPCon portfolio, and an above-market warranty stance. Fellow Energy is a credible alternative where European or Turkish supply chain origin is a priority, but the two brands should not be treated as interchangeable in contexts where documented bankability and third-party testing data are essential requirements.

Generated by Claude Sonnet · 2026-05-14

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

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.