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AEET vs DualSun - solar panel manufacturer comparison

AEET
Headquarters not published
Read the AEET review
VS
DualSun
France Founded 2010
Read the DualSun review
At a glance

DualSun has the broader catalog (6 vs 5 models). DualSun leads on peak efficiency at 22.00%. DualSun leans bifacial (33% 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 6
Highest power
200 Wp 500 Wp
Best efficiency
15.7% 22.0%
Average efficiency
14.9% 21.7%
Bifacial share
0% 33%
Average warranty
25 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
DualSun

DualSun is a French manufacturer specializing in hybrid solar panels that simultaneously generate electricity (photovoltaic) and hot water (thermal), marketed as PVT panels. The company produces both its flagship SPRING hybrid panel and the FLASH high-performance PV panel, with R&D based in Marseille and module...

Founded
2010
Headquarters
Marseille, France
Employees
50-100
02

Catalogue against catalogue

Averages over every model in the database
Metric AEET DualSun
Catalog & Power
Panel Models 5 6+1
Max Power 200 W 500 W+300 W
Avg Power 190 W 442 W+252 W
Efficiency
Max Efficiency 15.70% 22.00%+6.30 pp
Avg Efficiency 14.90% 21.67%+6.77 pp
Reliability & Warranty
Avg Temp Coefficient - -0.313%/°C
Bifacial Share 0 (0%) 2 (33%)+33 pp
Avg Warranty 25.0 yrs 30.0 yrs+5.0 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%)

DualSun cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (83%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AEET Energy Group GmbH is a Germany-based photovoltaic wholesale partner and full-service integrator headquartered in Bad Gandersheim, Germany. Rather than fabricating its own panels, the company positions itself as a sourcing and distribution hub - procuring modules from a range of established manufacturers, maintaining a well-stocked warehouse, and deploying through a network of more than 500 TUV Rheinland-certified specialist partners. Because AEET does not produce panels under its own brand at scale, it does not appear on the BloombergNEF Tier 1 manufacturers list, which tracks module makers, not distributors. DualSun, by contrast, is an independent French manufacturer founded in Marseille in 2010, producing panels under its own brand. It is a relatively small, innovation-focused company compared with global volume leaders, and it similarly does not carry Tier 1 bankability status, but it has attracted meaningful institutional attention in the European residential and self-consumption market. Between the two, DualSun has the stronger identity as an actual product manufacturer.

DualSun's catalog divides into two families with clearly different use cases. The FLASH line uses TOPCon cell technology with shingle interconnection and reaches confirmed panel efficiencies above 22 percent - targeting premium residential rooftops where aesthetics and long-term yield matter. The SPRING line is a certified hybrid PV-T (photovoltaic-thermal) panel that simultaneously generates electricity and heats water, making it relevant to homes combining solar power with domestic hot water or pool heating. The thermal assembly and final integration of SPRING panels are carried out at DualSun's plant in Jujurieux, France, giving it a "Made in France" label for that product. AEET, as a distributor, can supply mono and polycrystalline modules across a broader efficiency and price range depending on which manufacturing partners it contracts with, but that breadth is a function of its wholesale model rather than proprietary technology development.

For a buyer in 2025 looking for an innovative, premium residential panel - especially one interested in hybrid solar-thermal technology - DualSun is the more distinctive choice. For a buyer in Germany seeking flexible sourcing, competitive bulk pricing, or turnkey project support across a range of module brands, AEET's wholesale-integrator model serves a different and valid purpose. The two brands operate in largely non-overlapping segments, so a direct like-for-like comparison is limited.

Generated by Claude Sonnet · 2026-06-09

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 3 DualSun 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.