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

# Hounen Solar vs Hyundai

Hyundai has the broader catalog (65 vs 44 models). Hyundai leads on peak efficiency at 23.40%. Hounen Solar leans bifacial (86% of lineup).


## The two companies


| Attribute | Hounen Solar | Hyundai |
| --- | --- | --- |
| Country | China | South Korea |
| Headquarters | Haining | Seongnam-si |
| Founded | 2010 | 2004 |
| Employees | 200-500 | 206 |
| Annual capacity | 1-2 GW/year | 1.35 GW/year |
| Tier 1 |  | yes |
| Listed |  | Korea Stock Exchange: 322000 |
| Website | [https://www.hounensolar.com](https://www.hounensolar.com) | [https://www.hd-hyundaies.co.kr](https://www.hd-hyundaies.co.kr) |

Hounen Solar (Zhejiang Haoneng Optoelectronics) is a Chinese solar PV module manufacturer with its U.S. operations branded as Hounen Solar America. The company produces solar panels for residential, commercial, and utility-scale applications, and in 2023 established a 1 GW module assembly facility in Orangeburg, South...

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 | Hounen Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Panel Models | 44 | 65 | +21 |
| Max Power | 725 W | 640 W | +85 W |
| Avg Power | 569 W | 442 W | +126 W |


## Efficiency


| Measure | Hounen Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.34% | 23.40% | +0.06 pp |
| Avg Efficiency | 21.75% | 21.49% | +0.25 pp |


## Reliability & Warranty


| Measure | Hounen Solar | Hyundai | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.300%/°C | +0.025 |
| Bifacial Share | 38 (86%) | 43 (66%) | +20 pp |
| Avg Warranty | 28.6 yrs | 27.4 yrs | +1.3 yr |


## Efficiency distribution

Hounen Solar skews to higher efficiency: 7% of lineup is 23%+


| Efficiency band | Hounen Solar | Hyundai |
| --- | --- | --- |
| 20-21% | 7 (15.9%) | 17 (26.2%) |
| 21-22% | 20 (45.5%) | 12 (18.5%) |
| 22-23% | 14 (31.8%) | 25 (38.5%) |
| 23%+ | 3 (6.8%) | 4 (6.2%) |
| \<20% | 0 | 7 (10.8%) |


## Power distribution

Hounen Solar offers more 600W+ panels (43% of lineup)


| Power band | Hounen Solar | Hyundai |
| --- | --- | --- |
| \<400W | 1 (2.3%) | 8 (12.3%) |
| 400-499W | 10 (22.7%) | 49 (75.4%) |
| 500-599W | 14 (31.8%) | 5 (7.7%) |
| 600-699W | 13 (29.5%) | 3 (4.6%) |
| 700W+ | 6 (13.6%) | 0 |


## Cell technology

Dominant cell tech: **N-type** (48%)

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


| Technology | Hounen Solar | Hyundai |
| --- | --- | --- |
| Unknown | 23 (52.3%) | 9 (13.8%) |
| N-type | 21 (47.7%) | 0 |
| HJT | 0 | 25 (38.5%) |
| PERC | 0 | 25 (38.5%) |
| TOPCon | 0 | 6 (9.2%) |


## Top panels, Hounen Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [HNM8-GPLDD132-725/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-725-n) | 725 | 23.3 | -0.300 | Monocrystalline |
| 2 | [HNM8-GPLDD132-720/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-720-n) | 720 | 23.2 | -0.300 | Monocrystalline |
| 3 | [HNM8-GPLDD132-715/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-715-n) | 715 | 23.0 | -0.300 | Monocrystalline |
| 4 | [HNM8-GPLDD132-710/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-710-n) | 710 | 22.9 | -0.300 | Monocrystalline |
| 5 | [HNM8-GPLDD132-705/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-705-n) | 705 | 22.7 | -0.300 | Monocrystalline |
| 6 | [HNM8-GPLDD132-700/N](https://comparepv.com/panel/hounen-solar-hnm8-gpldd132-700-n) | 700 | 22.5 | -0.300 | Monocrystalline |
| 7 | [HNM8-TPLDD132-670/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-670-m) | 670 | 21.6 | -0.340 | Monocrystalline |
| 8 | [HNM8-TPLDD132-665/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-665-m) | 665 | 21.4 | -0.340 | Monocrystalline |
| 9 | [HNM8-TPLDD132-660/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-660-m) | 660 | 21.2 | -0.340 | Monocrystalline |
| 10 | [HNM8-TPLDD132-655/M](https://comparepv.com/panel/hounen-solar-hnm8-tpldd132-655-m) | 655 | 21.1 | -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

Hounen Solar is a US-based manufacturer founded in 2022 and headquartered in Orangeburg, South Carolina, where it operates an assembly facility targeting around 1 GW of annual production capacity, with stated plans to scale to 3 GW. The company is a relatively new entrant and does not appear on current BloombergNEF Tier 1 lists. Hyundai Energy Solutions - now branded HD Hyundai Energy Solutions - is a South Korean manufacturer that launched its solar business in 2004 and became an independent corporation in 2016, with its main module factory in South Korea's North Chungcheong Province and approximately 1.4 GW of annual production capacity. Hyundai carries confirmed Tier 1 bankability status backed by a well-established parent conglomerate, giving it a significantly stronger institutional footprint than Hounen.

Hounen Solar's product range runs from 400W residential panels up to 720W utility-scale modules, with a focus on bifacial designs assembled in the US - a meaningful advantage for buyers seeking domestic content compliance under the Inflation Reduction Act. Cell technology includes PERC configurations, and the company offers a 12-year product warranty alongside a 25-year performance guarantee. Hyundai Energy Solutions offers two main residential lines - the XG Series and the YH Series - using HJT and N-type TOPCon cell technology on premium models, with efficiencies reported up to around 22.28%, and warranties of 25 years on both product and performance, with select models offering up to 30-year coverage and an annual degradation rate of just 0.4%.

For most buyers in 2025, Hyundai Energy Solutions is the safer default - its Tier 1 status, longer track record, superior warranty terms, and advanced cell technology justify confidence for both residential and commercial installations. Hounen Solar is, however, a compelling alternative for US projects requiring domestic content qualification, where its South Carolina assembly can unlock IRA incentives unavailable to most imported panels.

\---LINKS---

\- https://a1solarstore.com/blog/hounen-solar-panels-review-assembled-in-north-america.html \| Hounen Solar Panels Review 2026 - US-Assembled Panels \| review

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

\- https://news.energysage.com/hyundai-solar-panels-complete-review/ \| Hyundai Solar Panels: The Complete Review - EnergySage \| review

\- https://www.pv-magazine.com/2021/03/12/hyundai-builds-1-37-gw-solar-cell-factory-in-south-korea/ \| Hyundai builds 1.37 GW solar cell factory in South Korea - PV Magazine \| article

\- https://www.ecowatch.com/solar/best-companies/hyundai-solar-panels \| Hyundai Solar Panels Review - Cost, Ratings and Reviews - EcoWatch \| review

Sources:

\- \[Hounen Solar Panels Review 2026 - A1 SolarStore\](https://a1solarstore.com/blog/hounen-solar-panels-review-assembled-in-north-america.html)

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

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

\- \[Hyundai builds 1.37 GW solar cell factory in South Korea - PV Magazine\](https://www.pv-magazine.com/2021/03/12/hyundai-builds-1-37-gw-solar-cell-factory-in-south-korea/)

\- \[Hyundai Solar Panels Review - EcoWatch\](https://www.ecowatch.com/solar/best-companies/hyundai-solar-panels)

Written by claude-sonnet from the figures above.


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- [Hounen Solar vs A.B. Energy](https://comparepv.com/hounen-solar-vs-a-b-energy)
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- [Hounen Solar vs AEET](https://comparepv.com/hounen-solar-vs-aeet)
- [AIKO vs Hyundai](https://comparepv.com/aiko-vs-hyundai)
- [Hounen Solar vs AKCOME](https://comparepv.com/hounen-solar-vs-akcome)
- [ARTsolar vs Hyundai](https://comparepv.com/artsolar-vs-hyundai)


---

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

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