---
title: "Q-Cells vs Sirius PV - Brand Comparison | ComparePV"
description: "Compare Q-Cells vs Sirius PV solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/q-cells-vs-sirius-pv"
---

# Q-Cells vs Sirius PV

Q-Cells has the broader catalog (89 vs 0 models). Q-Cells leans bifacial (39% of lineup).


## The two companies


| Attribute | Q-Cells | Sirius PV |
| --- | --- | --- |
| Country | South Korea | Turkey |
| Headquarters | Seoul | Ankara |
| Founded | 1999 | 2021 |
| Employees | 2000+ | 500-1000 |
| Annual capacity | 11.2 GW/year | 3-5 GW/year |
| Tier 1 | yes |  |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.com) | [https://siriuspv.com](https://siriuspv.com) |

Qcells is a renowned global provider of complete energy solutions, specializing in solar cells and modules, energy storage solutions, downstream project business, and energy retail. The company has a strong heritage dating back to its foundation in Germany and has become a leader in technology innovations. As an...

Sirius PV is a solar photovoltaic module manufacturer established in 2021 as a brand and subsidiary of Elin A.Ş., a Turkish industrial group founded in 1981. The company operates multiple automated production facilities across Europe and the United States, with a combined capacity of over 3.5 GW, positioning itself as...


## Catalog & Power


| Measure | Q-Cells | Sirius PV | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 0 | +89 |
| Max Power | 675 W | 0 W | +675 W |
| Avg Power | 468 W | 0 W | +468 W |


## Efficiency


| Measure | Q-Cells | Sirius PV | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | - |  |
| Avg Efficiency | 21.21% | - |  |


## Reliability & Warranty


| Measure | Q-Cells | Sirius PV | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | - |  |
| Bifacial Share | 35 (39%) | 0 (0%) | +39 pp |
| Avg Warranty | 27.0 yrs | - |  |


## Efficiency distribution

Q-Cells skews to higher efficiency: 2% of lineup is 23%+


| Efficiency band | Q-Cells | Sirius PV |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 0 |
| 20-21% | 29 (32.6%) | 0 |
| 21-22% | 30 (33.7%) | 0 |
| 22-23% | 21 (23.6%) | 0 |
| 23%+ | 2 (2.2%) | 0 |


## Power distribution

Q-Cells offers more 600W+ panels (19% of lineup)


| Power band | Q-Cells | Sirius PV |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 0 |
| 400-499W | 41 (46.1%) | 0 |
| 500-599W | 11 (12.4%) | 0 |
| 600-699W | 17 (19.1%) | 0 |


## Cell technology

Dominant cell tech: **PERC** (43%)


| Technology | Q-Cells | Sirius PV |
| --- | --- | --- |
| PERC | 38 (42.7%) | 0 |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 0 |
| TOPCon | 8 (9.0%) | 0 |


## Top panels, Q-Cells


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [Q.PEAK DUO ML-G12S.3 / BFG 675](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-675) | 675 | 21.7 | -0.340 | Monocrystalline |
| 2 | [Q.PEAK DUO ML-G12S.3 / BFG 670](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 3 | [Q.PEAK DUO ML-G12S.3 / BFG 665](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-665) | 665 | 21.4 | -0.340 | Monocrystalline |
| 4 | [Q.PEAK DUO ML-G12S.3 / BFG 660](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-660) | 660 | 21.2 | -0.340 | Monocrystalline |
| 5 | [Q.PEAK DUO ML-G12S.3 / BFG 655](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-655) | 655 | 21.1 | -0.340 | Monocrystalline |
| 6 | [Q.PEAK DUO ML-G12S.3 / BFG 650](https://comparepv.com/panel/q-cells-q-peak-duo-ml-g12s-3-bfg-650) | 650 | 20.9 | -0.340 | Monocrystalline |
| 7 | [Q.TRON XL-G2.3 / BFG 645](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-645) | 645 | 23.1 | -0.290 | Monocrystalline |
| 8 | [Q.TRON XL-G2.3 / BFG 640](https://comparepv.com/panel/q-cells-q-tron-xl-g2-3-bfg-640) | 640 | 22.9 | -0.290 | Monocrystalline |
| 9 | [Q.TRON XL-G2.3 / BFG 635](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-635) | 635 | 22.7 | -0.300 | Monocrystalline |
| 10 | [Q.TRON XL-G2.3 / BFG 630](https://comparepv.com/panel/hanwha-q-cells-america-inc-q-tron-xl-g2-3-bfg-630) | 630 | 22.6 | -0.300 | Monocrystalline |


## Summary

Q-Cells, now operating as Hanwha Q CELLS, traces its roots to Germany, where it was founded in 1999, before being acquired by South Korea's Hanwha Group in 2012. The brand holds Bloomberg NEF Tier 1 bankability status and has built a global module production capacity exceeding 11 GW per year, anchored in part by manufacturing campuses in Dalton and Cartersville, Georgia that together form the largest solar production footprint in the Western Hemisphere. Sirius PV is the panel brand of Elin Energy, a Turkish manufacturer founded in 1981 that launched Sirius PV as a distinct product line in 2021 and opened a Texas assembly plant near Houston in 2024. Elin Energy's Texas facility is ramping toward 2 GW per year of output, and the company claims Tier 1 status, with its manufacturing processes independently reviewed by DNV. Between the two brands, Q-Cells carries the longer institutional track record and a substantially larger global production footprint.

Q-Cells covers both premium residential rooftops and commercial applications. Its QTron line uses monocrystalline half-cut cells and targets residential buyers seeking high efficiency - search-confirmed figures reach roughly 22-23% on the top QTron variants - at pricing below ultra-premium competitors. The company is also actively transitioning toward TOPCon cell technology and is developing perovskite-silicon tandem cells for future generations. Sirius PV currently markets a focused catalog of bifacial all-black monocrystalline modules spanning roughly 400-560 W, with efficiency around 21%, suited to residential and light commercial rooftops. The Texas manufacturing base gives Sirius PV a domestic supply angle that may appeal to US buyers concerned about import tariff exposure.

For most buyers in 2025, Q-Cells is the safer default choice: it has deeper field data, an established warranty service network, and broad installer familiarity across North America and Europe. Sirius PV is a credible emerging option - particularly for buyers prioritizing US-assembled product or competitive pricing - but its track record as an independent brand is still short.

\---LINKS---

\- https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review \| Expert Review of Qcells Solar Panels 2025 - SolarReviews \| review

\- https://pv-magazine-usa.com/2024/04/15/turkish-solar-module-manufacturer-begins-production-in-texas/ \| Turkish solar module manufacturer begins production in Texas - PV Magazine USA \| article

\- https://www.energysage.com/supplier/28518/sirius-pv-by-elin-energy/ \| Sirius PV by Elin Energy - Profile and Reviews - EnergySage \| review

\- https://www.dnv.com/cases/elin-energy-independent-review-helps-elin-energy-open-new-us-pv-factory/ \| DNV independent review helps Elin Energy open new US PV factory \| article

\- https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-new-cartersville-factory-set-for-33-gw-of-solar-module-production-per-year.do \| Hanwha Qcells Cartersville factory set for 3.3 GW solar module production \| article

Sources:

\- \[Expert Review of Qcells Solar Panels 2025\](https://www.solarreviews.com/blog/hanwha-q-cells-solar-panels-complete-review)

\- \[Turkish solar module manufacturer begins production in Texas\](https://pv-magazine-usa.com/2024/04/15/turkish-solar-module-manufacturer-begins-production-in-texas/)

\- \[Sirius PV by Elin Energy - EnergySage\](https://www.energysage.com/supplier/28518/sirius-pv-by-elin-energy/)

\- \[DNV independent review helps Elin Energy open new US PV factory\](https://www.dnv.com/cases/elin-energy-independent-review-helps-elin-energy-open-new-us-pv-factory/)

\- \[Hanwha Qcells Cartersville factory - 3.3 GW production\](https://www.hanwha.com/newsroom/news/press-releases/hanwha-qcells-new-cartersville-factory-set-for-33-gw-of-solar-module-production-per-year.do)

Written by claude-sonnet from the figures above.


## Other comparisons

- [Q-Cells vs A.B. Energy](https://comparepv.com/q-cells-vs-a-b-energy)
- [AE Solar vs Sirius PV](https://comparepv.com/ae-solar-vs-sirius-pv)
- [Q-Cells vs AEET](https://comparepv.com/q-cells-vs-aeet)
- [AIKO vs Sirius PV](https://comparepv.com/aiko-vs-sirius-pv)
- [Q-Cells vs AKCOME](https://comparepv.com/q-cells-vs-akcome)
- [ARTsolar vs Sirius PV](https://comparepv.com/artsolar-vs-sirius-pv)


---

Source: https://comparepv.com/q-cells-vs-sirius-pv

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