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

# MY Solar vs Suntech

Suntech has the broader catalog (255 vs 140 models). Suntech leads on peak efficiency at 24.80%.


## The two companies


| Attribute | MY Solar | Suntech |
| --- | --- | --- |
| Country |  | China |
| Headquarters |  | Wuxi |
| Founded |  | 2001 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | no | yes |
| Listed |  |  |
| Website |  | [https://www.suntech-power.com](https://www.suntech-power.com) |


## Catalog & Power


| Measure | MY Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Panel Models | 140 | 255 | +115 |
| Max Power | 740 W | 735 W | +5 W |
| Avg Power | 418 W | 505 W | +87 W |


## Efficiency


| Measure | MY Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 23.82% | 24.80% | +0.98 pp |
| Avg Efficiency | 19.87% | 21.76% | +1.88 pp |


## Reliability & Warranty


| Measure | MY Solar | Suntech | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.333%/°C | -0.316%/°C | +0.017 |
| Bifacial Share | 54 (39%) | 114 (45%) | +6 pp |
| Avg Warranty | 27.1 yrs | 28.4 yrs | +1.3 yr |


## Efficiency distribution

Suntech skews to higher efficiency: 19% of lineup is 23%+


| Efficiency band | MY Solar | Suntech |
| --- | --- | --- |
| \<20% | 75 (53.6%) | 11 (4.3%) |
| 20-21% | 10 (7.1%) | 61 (23.9%) |
| 21-22% | 19 (13.6%) | 64 (25.1%) |
| 22-23% | 30 (21.4%) | 70 (27.5%) |
| 23%+ | 6 (4.3%) | 49 (19.2%) |


## Power distribution

MY Solar offers more 600W+ panels (21% of lineup)


| Power band | MY Solar | Suntech |
| --- | --- | --- |
| \<400W | 66 (47.1%) | 32 (12.5%) |
| 400-499W | 35 (25.0%) | 104 (40.8%) |
| 500-599W | 10 (7.1%) | 69 (27.1%) |
| 600-699W | 18 (12.9%) | 42 (16.5%) |
| 700W+ | 11 (7.9%) | 8 (3.1%) |


## Cell technology

Dominant cell tech: **PERC** (58%)

Dominant cell tech: **TOPCon** (71%)


| Technology | MY Solar | Suntech |
| --- | --- | --- |
| PERC | 81 (57.9%) | 5 (2.0%) |
| HJT | 29 (20.7%) | 0 |
| TOPCon | 25 (17.9%) | 180 (70.6%) |
| Unknown | 5 (3.6%) | 65 (25.5%) |
| N-type | 0 | 5 (2.0%) |


## Top panels, MY Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [MS740N-HJTGB](https://comparepv.com/panel/my-solar-ms740n-hjtgb) | 740 | 23.8 | -0.240 | Monocrystalline |
| 2 | [MS735N-HJTGB](https://comparepv.com/panel/my-solar-ms735n-hjtgb) | 735 | 23.7 | -0.240 | Monocrystalline |
| 3 | [MS730N-HJTGB](https://comparepv.com/panel/my-solar-ms730n-hjtgb) | 730 | 23.5 | -0.240 | Monocrystalline |
| 4 | [MS725N-HJTGB](https://comparepv.com/panel/my-solar-ms725n-hjtgb) | 725 | 23.3 | -0.240 | Monocrystalline |
| 5 | [MS720N-HJTGB](https://comparepv.com/panel/my-solar-ms720n-hjtgb) | 720 | 23.2 | -0.260 | Monocrystalline |
| 6 | [MS715N-HJTGB](https://comparepv.com/panel/my-solar-ms715n-hjtgb) | 715 | 23.0 | -0.260 | Monocrystalline |
| 7 | [MS710N-HJTGB](https://comparepv.com/panel/my-solar-ms710n-hjtgb) | 710 | 22.9 | -0.260 | Monocrystalline |
| 8 | [MS705N-HJTGB](https://comparepv.com/panel/my-solar-ms705n-hjtgb) | 705 | 22.7 | -0.260 | Monocrystalline |
| 9 | [MY-M12/144-700](https://comparepv.com/panel/my-solar-my-m12-144-700) | 700 | 22.3 | -0.350 | Monocrystalline |
| 10 | [MS700N-DHBG](https://comparepv.com/panel/my-solar-ms700n-dhbg) | 700 | 22.5 | -0.300 | Monocrystalline |


## 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 |


## Summary

Suntech is a Chinese manufacturer headquartered in Wuxi, Jiangsu, founded in 2001 by Shi Zhengrong; it briefly became the world's largest crystalline-silicon module producer around 2009 before its holding company went bankrupt in 2013. The Wuxi manufacturing entity survived under successive owners, first Shunfeng International Clean Energy and more recently Xiamen C&D Group and Hongyuan Green Energy since 2024, with cumulative historical shipments reported above 55 GW. Suntech states it continues to appear on BloombergNEF's Tier 1 bankability list, though the repeated ownership changes since 2024 are worth flagging when assessing long-term financial stability. MY Solar, also based in Wuxi, is a smaller and younger company, founded in 2010 as MY Solar Technology (MYPVTECH), part of the MY Solar Group; it reports around 3 GW of annual module production alongside inverters, batteries and storage systems, but does not appear in BloombergNEF's Tier 1 rankings or in independent coverage from outlets such as PV Magazine or PV Tech. On institutional footprint, Suntech - despite its turbulent ownership history - clearly has the longer track record and deeper third-party visibility.

Suntech's current portfolio centers on n-type TOPCon modules, including its Ultra V Pro and Ultra X Pro series, aimed at both residential rooftop and commercial and industrial (C&I) installations, and the company is building a 10 GW TOPCon cell facility to support this shift. MY Solar's catalog is broader but shallower in specialization: general crystalline modules spanning a wide power range, plus inverters and battery storage, marketed heavily through trade platforms such as Made-in-China rather than through utility-scale project references, which points to a business model built more around OEM and wholesale supply than branded, large-project deployment.

For a typical buyer, particularly one financing a bank-backed residential or C&I project, Suntech is the safer default thanks to its documented Tier 1 history and TOPCon roadmap, though its recent ownership churn warrants extra due diligence on warranty backing. MY Solar may suit smaller, price-sensitive or off-grid projects where formal bankability matters less, but the two brands are not interchangeable: one carries a documented institutional and technological track record, the other does not.

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


## Other comparisons

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


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Source: https://comparepv.com/my-solar-vs-suntech

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