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MY Solar vs Suntech - solar panel manufacturer comparison

MY Solar
Headquarters not published
Read the MY Solar review
VS
Suntech
China Founded 2001 Tier 1
Read the Suntech review
At a glance

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

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
140 255
Highest power
740 Wp 735 Wp
Best efficiency
23.8% 24.8%
Average efficiency
19.9% 21.8%
Bifacial share
39% 45%
Average warranty
27 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
Suntech
Founded
2001
Headquarters
Wuxi, China
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric MY Solar Suntech
Catalog & Power
Panel Models 140 255+115
Max Power 740 W+5 W 735 W
Avg Power 418 W 505 W+87 W
Efficiency
Max Efficiency 23.82% 24.80%+0.98 pp
Avg Efficiency 19.87% 21.76%+1.88 pp
Reliability & Warranty
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

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

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

Power spread
Share of each catalogue in every power band

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

MY Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (58%)

Suntech cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (71%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

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.

Generated by Claude Sonnet 5 · 2026-08-18

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 29 Suntech offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.