Skip to main content

AEET vs First Solar - solar panel manufacturer comparison

AEET
Headquarters not published
Read the AEET review
VS
First Solar
USA Founded 1999 Tier 1
Read the First Solar review
At a glance

First Solar has the broader catalog (63 vs 5 models). First Solar leads on peak efficiency at 19.70%. First Solar leans bifacial (19% 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
5 63
Highest power
200 Wp 550 Wp
Best efficiency
15.7% 19.7%
Average efficiency
14.9% 18.6%
Bifacial share
0% 19%
Average warranty
25 yrs 29 yrs
01

The two companies

Company facts, not datasheet figures
First Solar

First Solar is a leading American solar technology company and global provider of responsibly produced eco-efficient solar modules, advancing the fight against climate change. The company manufactures thin-film photovoltaic (PV) modules using cadmium telluride (CdTe) semiconductor technology. First Solar is unique...

Founded
1999
Headquarters
Tempe, AZ, USA
Annual capacity
21+ GW/year
Employees
5500-8100
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric AEET First Solar
Catalog & Power
Panel Models 5 63+58
Max Power 200 W 550 W+350 W
Avg Power 190 W 481 W+291 W
Efficiency
Max Efficiency 15.70% 19.70%+4.00 pp
Avg Efficiency 14.90% 18.56%+3.66 pp
Reliability & Warranty
Avg Temp Coefficient - -0.320%/°C
Bifacial Share 0 (0%) 12 (19%)+19 pp
Avg Warranty 25.0 yrs 29.3 yrs+4.3 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
Power spread
Share of each catalogue in every power band
AEET cell technology
Share of their models by cell architecture

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

First Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>CdTe</strong> (81%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AEET Energy Group GmbH is a German photovoltaic wholesale partner and service company headquartered in Bad Gandersheim, Lower Saxony. Founded as a regional specialist in PV distribution and installation, it operates primarily as a reseller and systems integrator that sources modules from established manufacturers rather than producing its own panels. AEET does not appear on BloombergNEF's Tier 1 bankability list, which tracks module manufacturers with proven non-recourse financing track records, and no independent production capacity figure in GW is publicly attributable to the company. First Solar, by contrast, is a Tempe, Arizona-based manufacturer founded in 1999 and publicly traded on NASDAQ. It is a consistent BloombergNEF Tier 1 name and operates roughly 11 GW of annual nameplate capacity from US-based factories, with a fifth facility under development that is expected to push that figure to approximately 17 GW by 2027. By any institutional measure, First Solar carries the stronger global footprint by a wide margin.

Because AEET sources from third-party manufacturers, its product offering reflects whatever modules it procures at a given time - crystalline silicon panels suitable for residential and small commercial rooftop installations in the European market. First Solar's own manufacturing is concentrated entirely on cadmium telluride (CdTe) thin-film technology through its Series 6 and Series 7 module lines, which are engineered exclusively for utility-scale ground-mount projects. The Series 7 carries a warranted annual degradation rate of 0.3% and a temperature coefficient of approximately -0.28% per degree Celsius, both figures that compare favorably against mainstream crystalline silicon panels in high-temperature climates. First Solar does not serve residential rooftops at all.

For a buyer evaluating these two names directly, the comparison is largely categorical rather than competitive. AEET is a regional European distributor appropriate for installers seeking a full-service procurement and maintenance partner for small to mid-scale projects. First Solar is a large-scale module OEM relevant only to developers, utilities, and investors financing multi-megawatt generation assets. A residential homeowner or a small commercial buyer in Europe would interact with a company like AEET; a developer building a 200 MW solar farm in the US Southwest would source Series 7 modules directly from First Solar or through its project pipeline agreements.

Generated by Claude Sonnet · 2026-05-15

06

Other brand comparisons

Build your own
Manufacturers
AEET A.B. Energy
Manufacturers
AE Solar First Solar
Manufacturers
AEET AIKO
Manufacturers
AKCOME First Solar
Manufacturers
AEET ARTsolar
Manufacturers
ASM First Solar
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.

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.