---
title: "Suntech vs Talesun - Brand Comparison | ComparePV"
description: "Compare Suntech vs Talesun solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/suntech-vs-talesun"
image: "https://comparepv.com/og/compare/manufacturers/suntech/talesun.png"
---

# Suntech vs Talesun

Suntech has the broader catalog (255 vs 144 models). Talesun leans bifacial (59% of lineup).


## The two companies


| Attribute | Suntech | Talesun |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Wuxi | Suzhou |
| Founded | 2001 | 2010 |
| Employees |  | 501 |
| Annual capacity |  | 5+ GW/year |
| Tier 1 | yes | yes |
| Listed |  |  |
| Website | [https://www.suntech-power.com](https://www.suntech-power.com) | [http://www.talesun.com](http://www.talesun.com) |

Talesun Solar, a subsidiary of Zhongli Group, is a leading global photovoltaic manufacturer specializing in the development, manufacturing, and delivery of high-quality solar modules and integrated PV energy solutions. The company provides clean and affordable PV energy solutions for residential, commercial, and...


## Catalog & Power


| Measure | Suntech | Talesun | Margin |
| --- | --- | --- | --- |
| Panel Models | 255 | 144 | +111 |
| Max Power | 735 W | 710 W | +25 W |
| Avg Power | 505 W | 564 W | +59 W |


## Efficiency


| Measure | Suntech | Talesun | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 24.80% |  |
| Avg Efficiency | 21.76% | 22.14% | +0.38 pp |


## Reliability & Warranty


| Measure | Suntech | Talesun | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.316%/°C | -0.304%/°C | +0.012 |
| Bifacial Share | 114 (45%) | 85 (59%) | +14 pp |
| Avg Warranty | 28.4 yrs | 28.8 yrs | +0.4 yr |


## Efficiency distribution

Talesun skews to higher efficiency: 28% of lineup is 23%+


| Efficiency band | Suntech | Talesun |
| --- | --- | --- |
| \<20% | 11 (4.3%) | 5 (3.5%) |
| 20-21% | 61 (23.9%) | 24 (16.7%) |
| 21-22% | 64 (25.1%) | 32 (22.2%) |
| 22-23% | 70 (27.5%) | 43 (29.9%) |
| 23%+ | 49 (19.2%) | 40 (27.8%) |


## Power distribution

Talesun offers more 600W+ panels (49% of lineup)


| Power band | Suntech | Talesun |
| --- | --- | --- |
| \<400W | 32 (12.5%) | 8 (5.6%) |
| 400-499W | 104 (40.8%) | 32 (22.2%) |
| 500-599W | 69 (27.1%) | 34 (23.6%) |
| 600-699W | 42 (16.5%) | 67 (46.5%) |
| 700W+ | 8 (3.1%) | 3 (2.1%) |


## Cell technology

Dominant cell tech: TOPCon (71%)

Dominant cell tech: TOPCon (44%)


| Technology | Suntech | Talesun |
| --- | --- | --- |
| TOPCon | 180 (70.6%) | 63 (43.8%) |
| Unknown | 65 (25.5%) | 5 (3.5%) |
| PERC | 5 (2.0%) | 51 (35.4%) |
| N-type | 5 (2.0%) | 17 (11.8%) |
| HJT | 0 | 8 (5.6%) |


## Top panels, Suntech


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [STP735S-D66-Nsh+](https://comparepv.com/panel/suntech-stp735s-d66-nsh) | 735 | 23.7 | -0.280 | Monocrystalline |
| 2 | [STP730S-D66-Nsh+](https://comparepv.com/panel/suntech-stp730s-d66-nsh) | 730 | 23.5 | -0.280 | Monocrystalline |
| 3 | [STP725S-D66-Nsh+](https://comparepv.com/panel/suntech-stp725s-d66-nsh) | 725 | 23.3 | -0.280 | Monocrystalline |
| 4 | [STP720S-D66-Nsh+](https://comparepv.com/panel/suntech-stp720s-d66-nsh) | 720 | 23.2 | -0.280 | Monocrystalline |
| 5 | [STP715S-D66-Nsh+](https://comparepv.com/panel/suntech-stp715s-d66-nsh) | 715 | 23.0 | -0.280 | Monocrystalline |
| 6 | [STP710S-D66-Nsh+](https://comparepv.com/panel/suntech-stp710s-d66-nsh) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [STP705S-D66-Nsh+](https://comparepv.com/panel/suntech-stp705s-d66-nsh) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [STP700S-D66-Nsh+](https://comparepv.com/panel/suntech-stp700s-d66-nsh) | 700 | 22.5 | -0.290 | Monocrystalline |
| 9 | [STP675S-D66/Wmh](https://comparepv.com/panel/suntech-stp675s-d66-wmh) | 675 | 21.7 | -0.340 | Monocrystalline |
| 10 | [STP670S-D66/Wmh](https://comparepv.com/panel/suntech-stp670s-d66-wmh) | 670 | 21.6 | -0.340 | Monocrystalline |


## Top panels, Talesun


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [TM8G66M-710](https://comparepv.com/panel/talesun-tm8g66m-710) | 710 | 22.9 | -0.290 | Monocrystalline |
| 2 | [TM8G66M-705](https://comparepv.com/panel/talesun-tm8g66m-705) | 705 | 22.7 | -0.290 | Monocrystalline |
| 3 | [TM8G66M-700](https://comparepv.com/panel/talesun-tm8g66m-700) | 700 | 22.5 | -0.290 | Monocrystalline |
| 4 | [TM8G66M-695](https://comparepv.com/panel/talesun-tm8g66m-695) | 695 | 22.4 | -0.290 | Monocrystalline |
| 5 | [TM8G66M-690](https://comparepv.com/panel/talesun-tm8g66m-690) | 690 | 22.2 | -0.290 | Monocrystalline |
| 6 | [TD8G66M/670W](https://comparepv.com/panel/talesun-td8g66m-670w) | 670 | 21.6 | -0.340 | Monocrystalline |
| 7 | [TP8F66M-670](https://comparepv.com/panel/talesun-tp8f66m-670) | 670 | 21.6 | -0.340 | Monocrystalline |
| 8 | [CIPRO-TN9C72M(H)-670](https://comparepv.com/panel/talesun-cipro-tn9c72m-h-670) | 670 | 24.8 | -0.260 | Monocrystalline |
| 9 | [TD8G66M/665W](https://comparepv.com/panel/talesun-td8g66m-665w) | 665 | 21.4 | -0.340 | Monocrystalline |
| 10 | [TP8F66M-665](https://comparepv.com/panel/talesun-tp8f66m-665) | 665 | 21.4 | -0.340 | Monocrystalline |


## Summary

Suntech is a Chinese solar module manufacturer headquartered in Wuxi, founded in 2001 by Dr. Zhengrong Shi and once the world's largest PV module supplier by shipments. The company went through bankruptcy in 2013 and was acquired by Shunfeng Photovoltaic, and as recently as June 2025 it initiated pre-restructuring creditor proceedings over debt repayment issues, even though it still appears on BloombergNEF's Tier 1 list. Talesun Solar, a subsidiary of the Fortune Global 500 conglomerate Zhongli Group, was established in 2010 and was also confirmed on BloombergNEF's Q1 2025 Tier 1 list, with annual capacity reported in the single-digit to low double-digit GW range and more than 36 GW of modules deployed worldwide. On institutional footing, Talesun currently looks steadier given Suntech's ongoing financial restructuring.

Both brands sell N-type products including TOPCon modules, and Talesun additionally offers an HJT heterojunction line rated around 23.7 percent efficiency, marketed for residential and commercial rooftops in lower-irradiance, higher-latitude regions. Suntech's current lineup centers on bifacial TOPCon modules for rooftop and utility-scale projects, though details are harder to verify amid its recent corporate turbulence. Talesun's catalog is broader, spanning TOPCon modules with SMBB busbar technology rated from 440 to 715 W alongside HJT and PERC options, making it a more versatile pick across residential, commercial and utility-scale segments.

For a typical buyer, particularly on a bank-financed or utility-scale project, Talesun is the safer default right now thanks to its steadier financial standing and an uncomplicated Tier 1 status. Suntech remains a technically capable and recognizable brand, but its active 2025 debt restructuring warrants extra diligence on warranty backing and long-term service support before committing.

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


## Other comparisons

- [Suntech vs A.B. Energy](https://comparepv.com/suntech-vs-a-b-energy)
- [AE Solar vs Talesun](https://comparepv.com/ae-solar-vs-talesun)
- [Suntech vs AEET](https://comparepv.com/suntech-vs-aeet)
- [AIKO vs Talesun](https://comparepv.com/aiko-vs-talesun)
- [Suntech vs AKCOME](https://comparepv.com/suntech-vs-akcome)
- [ARTsolar vs Talesun](https://comparepv.com/artsolar-vs-talesun)


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Source: https://comparepv.com/suntech-vs-talesun

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