---
title: "ET Solar vs Hyundai - Brand Comparison | ComparePV"
description: "Compare ET Solar vs Hyundai solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/et-solar-vs-hyundai"
---

# ET Solar vs Hyundai

Hyundai has the broader catalog (65 vs 10 models). Hyundai leads on peak efficiency at 23.40%. Hyundai leans bifacial (66% of lineup).


## The two companies


| Attribute | ET Solar | Hyundai |
| --- | --- | --- |
| Country | China | South Korea |
| Headquarters | Nanjing | Seongnam-si |
| Founded | 2005 | 2004 |
| Employees |  | 206 |
| Annual capacity |  | 1.35 GW/year |
| Tier 1 | no | yes |
| Listed |  | Korea Stock Exchange: 322000 |
| Website | [https://www.etsolar.com](https://www.etsolar.com) | [https://www.hd-hyundaies.co.kr](https://www.hd-hyundaies.co.kr) |

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...


## Catalog & Power


| Measure | ET Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Panel Models | 10 | 65 | +55 |
| Max Power | 555 W | 640 W | +85 W |
| Avg Power | 542 W | 442 W | +100 W |


## Efficiency


| Measure | ET Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 21.40% | 23.40% | +2.00 pp |
| Avg Efficiency | 20.99% | 21.49% | +0.50 pp |


## Reliability & Warranty


| Measure | ET Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.340%/°C | -0.300%/°C | +0.040 |
| Bifacial Share | 5 (50%) | 43 (66%) | +16 pp |
| Avg Warranty | 27.5 yrs | 27.4 yrs | +0.1 yr |


## Efficiency distribution

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


| Efficiency band | ET Solar | Hyundai |
| --- | --- | --- |
| 20-21% | 5 (50.0%) | 17 (26.2%) |
| 21-22% | 5 (50.0%) | 12 (18.5%) |
| \<20% | 0 | 7 (10.8%) |
| 22-23% | 0 | 25 (38.5%) |
| 23%+ | 0 | 4 (6.2%) |


## Power distribution

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


| Power band | ET Solar | Hyundai |
| --- | --- | --- |
| 500-599W | 10 (100.0%) | 5 (7.7%) |
| \<400W | 0 | 8 (12.3%) |
| 400-499W | 0 | 49 (75.4%) |
| 600-699W | 0 | 3 (4.6%) |


## Cell technology

Dominant cell tech: **PERC** (100%)

Dominant cell tech: **HJT** (38%)


| Technology | ET Solar | Hyundai |
| --- | --- | --- |
| PERC | 10 (100.0%) | 25 (38.5%) |
| HJT | 0 | 25 (38.5%) |
| Unknown | 0 | 9 (13.8%) |
| TOPCon | 0 | 6 (9.2%) |


## Top panels, ET Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ET-M772BH555WW/WB](https://comparepv.com/panel/et-solar-et-m772bh555ww-wb) | 555 | 21.4 | -0.340 | Monocrystalline |
| 2 | [ET-M772BH550TW/TB](https://comparepv.com/panel/et-solar-et-m772bh550tw-tb) | 550 | 21.3 | -0.340 | Monocrystalline |
| 3 | [ET-M772BH550WW/WB](https://comparepv.com/panel/et-solar-et-m772bh550ww-wb) | 550 | 21.3 | -0.340 | Monocrystalline |
| 4 | [ET-M772BH545TW/TB](https://comparepv.com/panel/et-solar-et-m772bh545tw-tb) | 545 | 21.1 | -0.340 | Monocrystalline |
| 5 | [ET-M772BH545WW/WB](https://comparepv.com/panel/et-solar-et-m772bh545ww-wb) | 545 | 21.1 | -0.340 | Monocrystalline |
| 6 | [ET-M772BH540TW/TB](https://comparepv.com/panel/et-solar-et-m772bh540tw-tb) | 540 | 20.9 | -0.340 | Monocrystalline |
| 7 | [ET-M772BH540WW/WB](https://comparepv.com/panel/et-solar-et-m772bh540ww-wb) | 540 | 20.9 | -0.340 | Monocrystalline |
| 8 | [ET-M772BH535TW/TB](https://comparepv.com/panel/et-solar-et-m772bh535tw-tb) | 535 | 20.7 | -0.340 | Monocrystalline |
| 9 | [ET-M772BH535WW/WB](https://comparepv.com/panel/et-solar-et-m772bh535ww-wb) | 535 | 20.7 | -0.340 | Monocrystalline |
| 10 | [ET-M772BH530TW/TB](https://comparepv.com/panel/et-solar-et-m772bh530tw-tb) | 530 | 20.5 | -0.340 | Monocrystalline |


## Top panels, Hyundai


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [HiS-T640NJ](https://comparepv.com/panel/hd-hyundai-energy-solutions-his-t640nj) | 640 | 22.9 | -0.290 | Monocrystalline |
| 2 | [HiS-T635NJ](https://comparepv.com/panel/hd-hyundai-energy-solutions-his-t635nj) | 635 | 22.7 | -0.290 | Monocrystalline |
| 3 | [HiS-T630NJ](https://comparepv.com/panel/hd-hyundai-energy-solutions-his-t630nj) | 630 | 22.5 | -0.290 | Monocrystalline |
| 4 | [HiT-H520LF-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h520lf-fb-zb) | 520 | 23.4 | -0.240 | Monocrystalline |
| 5 | [HiT-H515LF-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h515lf-fb-zb) | 515 | 23.2 | -0.240 | Monocrystalline |
| 6 | [HiT-H510LF-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h510lf-fb-zb) | 510 | 22.9 | -0.240 | Monocrystalline |
| 7 | [HiT-H505LF-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h505lf-fb-zb) | 505 | 22.7 | -0.240 | Monocrystalline |
| 8 | [HiT-H500LF-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h500lf-fb-zb) | 500 | 22.5 | -0.240 | Monocrystalline |
| 9 | [HiT-H460LE-FB(ZB)](https://comparepv.com/panel/hyundai-hit-h460le-fb-zb) | 460 | 23.0 | -0.240 | Monocrystalline |
| 10 | [HiT-H460CE-BF](https://comparepv.com/panel/hyundai-hit-h460ce-bf) | 460 | 23.0 | -0.240 | Monocrystalline |


## Summary

ET Solar is a Chinese manufacturer headquartered in Nanjing, founded in 2005, that has shipped more than 7.2 GW of modules since inception and holds BloombergNEF Tier 1 bankable status. The company is vertically integrated, handling production from silicon ingots through finished modules, which supports supply consistency across its residential, commercial, and utility-scale segments. Hyundai Energy Solutions - operating under the HD Hyundai group - is a South Korean manufacturer with Tier 1 bankable status and an annual production capacity exceeding 1.4 GW. While ET Solar's cumulative shipped volume gives it broader global reach, HD Hyundai Energy Solutions carries the institutional weight of a major industrial conglomerate behind its brand.

ET Solar's catalog spans residential rooftop and light commercial applications, with product warranties of 10 years and performance guarantees extending to 25 years or longer depending on the series. The company's product mix covers a range of module sizes and power classes that suit both distributed installations and small utility projects. HD Hyundai Energy Solutions, by contrast, has made a clear technology commitment: the company began mass production of N-type TOPCon cells in 2025 and is concurrently scaling up heterojunction (HJT) cell manufacturing, with R&D cells exceeding 24-25% efficiency. This positions Hyundai firmly in the premium-residential and mid-scale commercial segment, appealing to buyers who prioritize next-generation cell technology and long warranty terms of up to 30 years.

For a typical buyer in 2025, HD Hyundai Energy Solutions is the stronger choice if N-type cell technology and a recognized global brand name are priorities, particularly for premium residential rooftop installations in North America or Europe where those attributes command a premium. ET Solar remains a competitive, bankable option for cost-sensitive commercial and light utility projects where cumulative shipment experience and vertical integration offer practical supply advantages. Neither brand is interchangeable with the other in positioning - Hyundai skews premium and technology-forward, while ET Solar occupies a reliable mid-market role.

\---LINKS---

\- https://www.solarreviews.com/manufacturers/et-solar \| ET Solar manufacturer review and ratings - SolarReviews \| review

\- https://www.energysage.com/solar-panels/et-solar-inc/ \| ET Solar Inc. solar panels overview - EnergySage \| review

\- https://www.solarreviews.com/blog/complete-review-hyundai-solar-panels \| Complete review of Hyundai solar panels 2025 - SolarReviews \| review

\- https://news.energysage.com/hyundai-solar-panels-complete-review/ \| Hyundai solar panels complete review - EnergySage \| review

\- https://pv-magazine-usa.com/press-releases/hd-hyundai-energy-solutions-begins-mass-production-of-n-type-topcon-cells/ \| HD Hyundai Energy Solutions begins mass production of N-Type TOPCon cells \| article

Sources:

\- \[ET Solar manufacturer review - SolarReviews\](https://www.solarreviews.com/manufacturers/et-solar)

\- \[ET Solar Inc. solar panels - EnergySage\](https://www.energysage.com/solar-panels/et-solar-inc/)

\- \[Complete review of Hyundai solar panels 2025 - SolarReviews\](https://www.solarreviews.com/blog/complete-review-hyundai-solar-panels)

\- \[Hyundai solar panels complete review - EnergySage\](https://news.energysage.com/hyundai-solar-panels-complete-review/)

\- \[HD Hyundai Energy Solutions begins mass production of N-Type TOPCon cells - PV Magazine USA\](https://pv-magazine-usa.com/press-releases/hd-hyundai-energy-solutions-begins-mass-production-of-n-type-topcon-cells/)

Written by claude-sonnet from the figures above.


## Other comparisons

- [ET Solar vs A.B. Energy](https://comparepv.com/et-solar-vs-a-b-energy)
- [AE Solar vs Hyundai](https://comparepv.com/ae-solar-vs-hyundai)
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- [AIKO vs Hyundai](https://comparepv.com/aiko-vs-hyundai)
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- [ARTsolar vs Hyundai](https://comparepv.com/artsolar-vs-hyundai)


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Source: https://comparepv.com/et-solar-vs-hyundai

Not in this file, on the page: the distributions above drawn as charts.