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DualSun vs Hyundai - solar panel manufacturer comparison

DualSun
France Founded 2010
Read the DualSun review
VS
Hyundai
South Korea Founded 2004 Tier 1
Read the Hyundai review
At a glance

Hyundai has the broader catalog (65 vs 6 models). Hyundai leads on peak efficiency at 23.40%. Hyundai leans bifacial (66% 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
6 65
Highest power
500 Wp 640 Wp
Best efficiency
22.0% 23.4%
Average efficiency
21.7% 21.5%
Bifacial share
33% 66%
Average warranty
30 yrs 27 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
Hyundai

HD Hyundai Energy Solutions is a global provider of solar cells and modules, offering solutions for residential, commercial, and utility-scale projects. They provide monofacial, bifacial, and shingled PV modules, along with inverters and various PV solutions. The company is committed to developing next-generation...

Founded
2004
Headquarters
Seongnam-si, South Korea
Annual capacity
1.35 GW/year
Employees
206
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric DualSun Hyundai
Catalog & Power
Panel Models 6 65+59
Max Power 500 W 640 W+140 W
Avg Power 442 W 442 W+1 W
Efficiency
Max Efficiency 22.00% 23.40%+1.40 pp
Avg Efficiency 21.67%+0.18 pp 21.49%
Reliability & Warranty
Avg Temp Coefficient -0.313%/°C -0.300%/°C+0.013
Bifacial Share 2 (33%) 43 (66%)+33 pp
Avg Warranty 30.0 yrs+2.6 yr 27.4 yrs

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

Hyundai skews to higher efficiency: 6% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Hyundai offers more 600W+ panels (5% of lineup)

DualSun cell technology
Share of their models by cell architecture

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

Hyundai cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>HJT</strong> (38%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

DualSun is a French manufacturer founded in 2010 and headquartered in Marseille, specializing in premium photovoltaic and hybrid solar panels for the residential market. It is a comparatively small, innovation-focused company - not listed among BloombergNEF Tier 1 manufacturers - with partial French manufacturing at its Jujurieux assembly plant and cell sourcing from China. Hyundai Energy Solutions, operating under the HD Hyundai group, is a South Korean manufacturer with a substantially larger global footprint, serving residential, commercial, and utility-scale markets across multiple continents. Hyundai was previously recognized on the BloombergNEF Tier 1 list, though search results from mid-2025 indicate it was dropped from that list due to non-compliance with updated BNEF bankability criteria. In terms of institutional scale and international supply chain depth, Hyundai carries the broader market presence.

DualSun's product offering centers on two distinct lines: the FLASH range, a pure photovoltaic module using shingle cell technology with confirmed efficiencies between roughly 21.6% and 22.8%, aimed at aesthetically conscious residential rooftops; and the SPRING range, a patented hybrid photovoltaic-thermal panel that simultaneously generates electricity and domestic hot water, making it uniquely suited to homes seeking to offset both electricity and heating costs in a single roof footprint. Hyundai's catalog is broader, spanning older PERC-based residential modules and a growing lineup of N-type TOPCon bifacial panels - including the NF(BK) series and the high-wattage HiN-T commercial modules - covering applications from standard rooftop residential to large commercial ground mounts.

For a typical buyer in 2025, the two brands serve genuinely different needs rather than competing directly. DualSun is the stronger choice for homeowners who want hybrid thermal-electric output or premium all-black aesthetics and are willing to pay a premium for French-assembled innovation. Hyundai suits buyers looking for a well-established, value-positioned brand with a wide product range and reliable N-type TOPCon efficiency across residential and commercial scales - provided the installer can confirm current supply and warranty support given the brand's recent change in BNEF status.

Generated by Claude Sonnet · 2026-06-07

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 · See 41 Hyundai 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.