---
title: "Q-Cells vs Vespa Solar Enerji - Brand Comparison | ComparePV"
description: "Compare Q-Cells vs Vespa Solar Enerji solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/q-cells-vs-vespa-solar-enerji"
---

# Q-Cells vs Vespa Solar Enerji

Q-Cells has the broader catalog (89 vs 9 models). Vespa Solar Enerji leads on peak efficiency at 23.32%. Vespa Solar Enerji leans bifacial (100% of lineup).


## The two companies


| Attribute | Q-Cells | Vespa Solar Enerji |
| --- | --- | --- |
| Country | South Korea | Turkey |
| Headquarters | Seoul |  |
| Founded | 1999 |  |
| Employees | 2000+ |  |
| Annual capacity | 11.2 GW/year |  |
| Tier 1 | yes | no |
| Listed | NASDAQ: HQCL |  |
| Website | [https://www.qcells.com](https://www.qcells.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...


## Catalog & Power


| Measure | Q-Cells | Vespa Solar Enerji | Margin |
| --- | --- | --- | --- |
| Panel Models | 89 | 9 | +80 |
| Max Power | 675 W | 630 W | +45 W |
| Avg Power | 468 W | 514 W | +46 W |


## Efficiency


| Measure | Q-Cells | Vespa Solar Enerji | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.20% | 23.32% | +0.12 pp |
| Avg Efficiency | 21.21% | 21.31% | +0.10 pp |


## Reliability & Warranty


| Measure | Q-Cells | Vespa Solar Enerji | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.325%/°C | -0.334%/°C | +0.010 |
| Bifacial Share | 35 (39%) | 9 (100%) | +61 pp |
| Avg Warranty | 27.0 yrs | 30.0 yrs | +3.0 yr |


## Efficiency distribution

Vespa Solar Enerji skews to higher efficiency: 11% of lineup is 23%+


| Efficiency band | Q-Cells | Vespa Solar Enerji |
| --- | --- | --- |
| \<20% | 7 (7.9%) | 0 |
| 20-21% | 29 (32.6%) | 3 (33.3%) |
| 21-22% | 30 (33.7%) | 5 (55.6%) |
| 22-23% | 21 (23.6%) | 0 |
| 23%+ | 2 (2.2%) | 1 (11.1%) |


## Power distribution

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


| Power band | Q-Cells | Vespa Solar Enerji |
| --- | --- | --- |
| \<400W | 20 (22.5%) | 0 |
| 400-499W | 41 (46.1%) | 4 (44.4%) |
| 500-599W | 11 (12.4%) | 4 (44.4%) |
| 600-699W | 17 (19.1%) | 1 (11.1%) |


## Cell technology

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

Dominant cell tech: **PERC** (89%)


| Technology | Q-Cells | Vespa Solar Enerji |
| --- | --- | --- |
| PERC | 38 (42.7%) | 8 (88.9%) |
| N-type | 23 (25.8%) | 0 |
| Unknown | 20 (22.5%) | 0 |
| TOPCon | 8 (9.0%) | 1 (11.1%) |


## 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 |


## Top panels, Vespa Solar Enerji


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [VSP630DM-G12RT-132H](https://comparepv.com/panel/vespa-solar-enerji-vsp630dm-g12rt-132h) | 630 | 23.3 | -0.290 | Monocrystalline |
| 2 | [VSP555T-M10-144H](https://comparepv.com/panel/vespa-solar-enerji-vsp555t-m10-144h) | 555 | 21.5 | -0.340 | Monocrystalline |
| 3 | [VSP550T-M10-144H](https://comparepv.com/panel/vespa-solar-enerji-vsp550t-m10-144h) | 550 | 21.3 | -0.340 | Monocrystalline |
| 4 | [VSP545T-M10-144H](https://comparepv.com/panel/vespa-solar-enerji-vsp545t-m10-144h) | 545 | 21.1 | -0.340 | Monocrystalline |
| 5 | [VSP540T-M10-144H](https://comparepv.com/panel/vespa-solar-enerji-vsp540t-m10-144h) | 540 | 20.9 | -0.340 | Monocrystalline |
| 6 | [VSP460T-M10-120H](https://comparepv.com/panel/vespa-solar-enerji-vsp460t-m10-120h) | 460 | 21.2 | -0.340 | Monocrystalline |
| 7 | [VSP455T-M10-120H](https://comparepv.com/panel/vespa-solar-enerji-vsp455t-m10-120h) | 455 | 21.0 | -0.340 | Monocrystalline |
| 8 | [VSP450T-M10-120H](https://comparepv.com/panel/vespa-solar-enerji-vsp450t-m10-120h) | 450 | 20.8 | -0.340 | Monocrystalline |
| 9 | [VSP445T-M10-120H](https://comparepv.com/panel/vespa-solar-enerji-vsp445t-m10-120h) | 445 | 20.6 | -0.340 | Monocrystalline |


## Summary

Q-Cells, originally founded in Germany in 1999 and acquired by South Korean conglomerate Hanwha Group in 2012, operates today as Hanwha Qcells with corporate headquarters in Seoul and a substantial U.S. manufacturing presence in Dalton, Georgia - the largest silicon module production site in the Western Hemisphere, with annual capacity reported at approximately 8.4 GW. The brand holds confirmed Bloomberg NEF Tier 1 status, reflecting strong bankability and the financial depth of the Hanwha parent. Vespa Solar Enerji is a Turkish manufacturer based in Hacılar, Kayseri, operating from within an organized industrial zone; while ENF Solar lists the company with panel datasheets, no independent source confirms Tier 1 bankability or documents the company's aggregate annual production scale. On institutional footprint, Q-Cells holds an unambiguous advantage.

Q-Cells fields two principal panel families for the residential and light-commercial segment: the Q.TRON line, which uses N-type TOPCon cells and reaches efficiencies of up to 22.5%, and the Q.PEAK DUO line, based on PERC technology, which targets budget-conscious residential buyers. Both carry 25-year product warranties and EPEAT sustainability certification. The brand also supplies utility-scale projects. Vespa Solar Enerji's confirmed product range, per ENF Solar datasheets, covers high-wattage crystalline PERC and bifacial modules in the 445-555 Wp band, which suggests a commercial or utility orientation rather than residential rooftop focus, though independent performance reviews in English are essentially absent.

For a typical buyer in 2025 - whether a homeowner, commercial developer, or project financier - Q-Cells is the safer default: it offers documented bankability, a wide product portfolio with confirmed next-generation cell technology, and broad installer network coverage across North America and Europe. Vespa Solar Enerji may be a viable option for regionally sourced projects in Turkey or adjacent markets, but the absence of Tier 1 recognition and third-party reviews makes independent due diligence essential before specifying it on any project with long-term warranty reliance.

\---LINKS---

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

\- https://solartechonline.com/blog/hanwha-q-cells-solar-panels-review-2025/ \| Hanwha Q CELLS Solar Panels Review 2025 - SolarTechOnline \| review

\- https://carboncredits.com/hanwha-qcells-shines-with-record-breaking-solar-cell-efficiency-and-1-45-billion-doe-loan/ \| Hanwha Qcells Record Efficiency and DOE Loan - Carbon Credits \| article

\- https://www.enfsolar.com/vespa-solar-enerji \| Vespa Enerji San.Tic.A.S. - Solar Panels - Turkey - ENF Solar \| article

\- https://www.enfsolar.com/pv/panel-datasheet/crystalline/63256 \| Vespa Solar Enerji VSP-T 545-555W Panel Datasheet - ENF Solar \| review

Sources:

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

\- \[Hanwha Q CELLS Solar Panels Review 2025\](https://solartechonline.com/blog/hanwha-q-cells-solar-panels-review-2025/)

\- \[Hanwha Qcells Record Efficiency and DOE Loan\](https://carboncredits.com/hanwha-qcells-shines-with-record-breaking-solar-cell-efficiency-and-1-45-billion-doe-loan/)

\- \[Vespa Enerji - ENF Solar Directory\](https://www.enfsolar.com/vespa-solar-enerji)

\- \[Vespa Solar Enerji VSP-T 545-555W Datasheet\](https://www.enfsolar.com/pv/panel-datasheet/crystalline/63256)

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 Vespa Solar Enerji](https://comparepv.com/ae-solar-vs-vespa-solar-enerji)
- [Q-Cells vs AEET](https://comparepv.com/q-cells-vs-aeet)
- [AIKO vs Vespa Solar Enerji](https://comparepv.com/aiko-vs-vespa-solar-enerji)
- [Q-Cells vs AKCOME](https://comparepv.com/q-cells-vs-akcome)
- [ARTsolar vs Vespa Solar Enerji](https://comparepv.com/artsolar-vs-vespa-solar-enerji)


---

Source: https://comparepv.com/q-cells-vs-vespa-solar-enerji

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