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

# ECODELTA vs Q-Cells

Q-Cells has the broader catalog (89 vs 13 models). Q-Cells leads on peak efficiency at 23.20%. Q-Cells leans bifacial (39% of lineup).


## The two companies


| Attribute | ECODELTA | Q-Cells |
| --- | --- | --- |
| Country | France | South Korea |
| Headquarters | La Ciotat | Seoul |
| Founded | 2002 | 1999 |
| Employees |  | 2000+ |
| Annual capacity |  | 11.2 GW/year |
| Tier 1 |  | yes |
| Listed |  | NASDAQ: HQCL |
| Website | [http://www.ecodelta.fr](http://www.ecodelta.fr) | [https://www.qcells.com](https://www.qcells.com) |

EcoDelta is a French developer of wind and solar energy projects. They offer expertise in project management and financing to maximize energy output. The company strives to promote, develop, and operate decentralized renewable electricity projects.

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 | ECODELTA | Q-Cells | Margin |
| --- | --- | --- | --- |
| Panel Models | 13 | 89 | +76 |
| Max Power | 550 W | 675 W | +125 W |
| Avg Power | 466 W | 468 W | +2 W |


## Efficiency


| Measure | ECODELTA | Q-Cells | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 22.54% | 23.20% | +0.66 pp |
| Avg Efficiency | 21.14% | 21.21% | +0.07 pp |


## Reliability & Warranty


| Measure | ECODELTA | Q-Cells | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.332%/°C | -0.325%/°C | +0.008 |
| Bifacial Share | 3 (23%) | 35 (39%) | +16 pp |
| Avg Warranty | 26.2 yrs | 27.0 yrs | +0.8 yr |


## Efficiency distribution

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


| Efficiency band | ECODELTA | Q-Cells |
| --- | --- | --- |
| 20-21% | 7 (53.8%) | 29 (32.6%) |
| 21-22% | 3 (23.1%) | 30 (33.7%) |
| 22-23% | 3 (23.1%) | 21 (23.6%) |
| \<20% | 0 | 7 (7.9%) |
| 23%+ | 0 | 2 (2.2%) |


## Power distribution

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


| Power band | ECODELTA | Q-Cells |
| --- | --- | --- |
| \<400W | 1 (7.7%) | 20 (22.5%) |
| 400-499W | 7 (53.8%) | 41 (46.1%) |
| 500-599W | 5 (38.5%) | 11 (12.4%) |
| 600-699W | 0 | 17 (19.1%) |


## Cell technology

Dominant cell tech: **TOPCon** (62%)

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


| Technology | ECODELTA | Q-Cells |
| --- | --- | --- |
| TOPCon | 8 (61.5%) | 8 (9.0%) |
| PERC | 5 (38.5%) | 38 (42.7%) |
| N-type | 0 | 23 (25.8%) |
| Unknown | 0 | 20 (22.5%) |


## Top panels, ECODELTA


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [ECO-550M-72LHC](https://comparepv.com/panel/ecodelta-eco-550m-72lhc) | 550 | 21.3 | -0.350 | Monocrystalline |
| 2 | [ECO-545M-72LHC](https://comparepv.com/panel/ecodelta-eco-545m-72lhc) | 545 | 21.1 | -0.350 | Monocrystalline |
| 3 | [ECO-540M-72LHC](https://comparepv.com/panel/ecodelta-eco-540m-72lhc) | 540 | 20.9 | -0.350 | Monocrystalline |
| 4 | [ECO-535M-72LHC](https://comparepv.com/panel/ecodelta-eco-535m-72lhc) | 535 | 20.7 | -0.350 | Monocrystalline |
| 5 | [ECO-530M-72LHC](https://comparepv.com/panel/ecodelta-eco-530m-72lhc) | 530 | 20.5 | -0.350 | Monocrystalline |
| 6 | [ECO-450M-54LHC-DGBF](https://comparepv.com/panel/ecodelta-eco-450m-54lhc-dgbf) | 450 | 22.5 | -0.290 | Monocrystalline |
| 7 | [ECO-445M-54LHC-DGBF](https://comparepv.com/panel/ecodelta-eco-445m-54lhc-dgbf) | 445 | 22.3 | -0.290 | Monocrystalline |
| 8 | [ECO-440M-54LHC-DGBF](https://comparepv.com/panel/ecodelta-eco-440m-54lhc-dgbf) | 440 | 22.0 | -0.290 | Monocrystalline |
| 9 | [ECO-415M-60SB](https://comparepv.com/panel/ecodelta-eco-415m-60sb) | 415 | 21.2 | -0.340 | Monocrystalline |
| 10 | [ECO-410M-60SB](https://comparepv.com/panel/ecodelta-eco-410m-60sb) | 410 | 20.9 | -0.340 | Monocrystalline |


## 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

ECODELTA, formally Eco Delta Power Co., Ltd., is a Chinese manufacturer headquartered in Changzhou, Jiangsu Province. It is a comparatively young, mid-market brand that does not appear on BloombergNEF's Tier 1 list, and independent trackers put its annual module capacity at roughly 3.2 GW with a commercial presence in around 50 countries. Q-Cells, operating as Hanwha Q CELLS, traces its roots to a company founded in Germany in 1999 and now operates under Hanwha Group with major manufacturing in South Korea and the United States (including a large Georgia facility). Q-Cells holds confirmed Tier 1 bankability status from BloombergNEF and ranked among the top manufacturers in SolarReviews' 2025 rankings, giving it a substantially stronger institutional footprint, longer track record, and greater financial backing than ECODELTA.

In terms of product focus, ECODELTA's catalog centers on residential and smaller commercial rooftop installations, mixing TOPCon and PERC cell technology across a limited lineup (roughly a dozen models) with efficiencies up to about 22.5 percent and warranties around 26 years, positioning it as an accessible, newer-technology option at a lower price point. Q-Cells offers a much broader portfolio of around 90 models spanning residential rooftops, commercial installations, and utility-scale projects, with efficiencies reaching 23.2 percent and strong value positioning among Tier 1 residential panels; EnergySage's 2024 installer survey also places Q-Cells in a lower-failure-rate tier, with reported defect rates under 0.1 percent over five-year windows.

For a typical buyer in 2025, Q-Cells is the safer default choice given its confirmed Tier 1 status, long operating history, broader product range, and documented field reliability data, which collectively reduce long-term warranty and performance risk. ECODELTA may appeal to cost-sensitive buyers seeking newer cell technology at a lower upfront price, but its lack of Tier 1 bankability and limited track record mean it carries more uncertainty, particularly around long-term manufacturer support. The two brands are not interchangeable: Q-Cells is the more established, lower-risk option, while ECODELTA competes primarily on price in the mid-market segment.

\---LINKS---

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

\- https://www.ecowatch.com/solar/reviews/qcells-solar-panels \| QCells Solar Panels Review 2025: Cost, Efficiency and Performance \| review

\- https://comparepv.com/reviews/ecodelta \| ECODELTA Solar Panels Review 2026: Pros, Cons and Specs \| review

\- https://www.solarchoice.net.au/products/panels/Q-CELLS-solar-panels-review/ \| Q Cells Solar Panels: An Independent Review by Solar Choice \| review

\- https://comparepv.com/canadian-solar-vs-ecodelta \| Canadian Solar vs ECODELTA - Brand Comparison \| article

Written by claude-sonnet-5 from the figures above.


## Other comparisons

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


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Source: https://comparepv.com/ecodelta-vs-q-cells

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