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Hyundai vs KIOTO Solar - solar panel manufacturer comparison

Hyundai
South Korea Founded 2004 Tier 1
Read the Hyundai review
VS
KIOTO Solar
Austria Founded 1991
Read the KIOTO Solar review
At a glance

Hyundai has the broader catalog (65 vs 7 models). Hyundai leads on peak efficiency at 23.40%.

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
65 7
Highest power
640 Wp 450 Wp
Best efficiency
23.4% 22.8%
Average efficiency
21.5% 22.5%
Bifacial share
66% 57%
Average warranty
27 yrs 27 yrs
01

The two companies

Company facts, not datasheet figures
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
KIOTO Solar

KIOTO Solar (KIOTO Photovoltaics GmbH) is an Austrian manufacturer of photovoltaic modules, producing panels exclusively at its facility in St. Veit an der Glan, Carinthia. The company traces its roots to 1991 as part of the Sonnenkraft group, with PV module production beginning in 2005. It is the market leader for PV...

Founded
1991
Headquarters
St. Veit an der Glan, Austria
Annual capacity
<1 GW/year
Employees
201-500
02

Catalogue against catalogue

Averages over every model in the database
Metric Hyundai KIOTO Solar
Catalog & Power
Panel Models 65+58 7
Max Power 640 W+190 W 450 W
Avg Power 442 W 446 W+3 W
Efficiency
Max Efficiency 23.40%+0.57 pp 22.83%
Avg Efficiency 21.49% 22.53%+1.04 pp
Reliability & Warranty
Avg Temp Coefficient -0.300%/°C+0.008 -0.309%/°C
Bifacial Share 43 (66%)+9 pp 4 (57%)
Avg Warranty 27.4 yrs+0.2 yr 27.1 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)

Hyundai cell technology
Share of their models by cell architecture

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

KIOTO Solar cell technology
Share of their models by cell architecture

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

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

HD Hyundai Energy Solutions is a South Korean manufacturer that organized its solar division in 2004, later spinning it off as an independent business from Hyundai Heavy Industries in 2016. The company operates over 1.4 GW of annual production capacity and maintains a U.S. commercial office in Irvine, California alongside its Korean headquarters, giving it a notably broad international footprint. KIOTO Solar, by contrast, is an Austrian brand produced under Sonnenkraft GmbH, which expanded its Saint Veit an der Glan production site to approximately 340 MW per year after Sonnenkraft and KIOTO merged operations around 2020. KIOTO holds the position of market leader for solar modules in Austria and distributes primarily across Europe. On raw institutional scale - production volume, global distribution reach, and access to project finance - HD Hyundai carries the stronger footprint by a clear margin.

HD Hyundai's current lineup is anchored by n-type TOPCon modules, which entered mass production in April 2025, covering residential 108-cell formats and commercial or utility-scale 144- and 156-cell configurations. The company also fields its premium HeteroMax HJT series for buyers who prioritize the lowest temperature coefficient and maximum watt-per-square-metre density. KIOTO Solar's catalog centers on monocrystalline PERC and bifacial technology, with module power ratings reaching into the 430 Wp range, well suited to residential rooftops and mid-scale commercial installations in the European context. Neither brand has been publicly confirmed as a BloombergNEF Tier 1 solar module manufacturer based on available search results.

For a buyer outside Europe, HD Hyundai is the more accessible and scalable default, backed by a larger manufacturing base and a clear n-type cell development road map. KIOTO Solar is a compelling regional choice for European installers and homeowners who value Austrian provenance and localized warranty support, especially in the DACH market where Sonnenkraft has an established service network. The two brands largely occupy different geographic and capacity tiers rather than being direct global competitors.

Generated by Claude Sonnet · 2026-06-03

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 38 Hyundai offers · See 2 KIOTO 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.