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Gamko New Energy vs Suntech - solar panel manufacturer comparison

Gamko New Energy
China Founded 2008
Read the Gamko New Energy review
VS
Suntech
China Founded 2001 Tier 1
Read the Suntech review
At a glance

Suntech leads on peak efficiency at 24.80%. Gamko New Energy leans bifacial (81% of lineup).

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
255 255
Highest power
750 Wp 735 Wp
Best efficiency
24.1% 24.8%
Average efficiency
22.0% 21.8%
Bifacial share
81% 45%
Average warranty
30 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
Gamko New Energy

Gamko New Energy is a professional solar module manufacturer with a 10-year experience in production and quality control since 2008. They also provide technical services for solar power plants, including design, installation, and maintenance. In 2018, their production capacity reached 2GW.

Founded
2008
Headquarters
Nantong, Jiangsu, China
Annual capacity
1.2 GW/year
Employees
201-300
Suntech
Founded
2001
Headquarters
Wuxi, China
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Gamko New Energy Suntech
Catalog & Power
Panel Models 255 255
Max Power 750 W+15 W 735 W
Avg Power 500 W 505 W+5 W
Efficiency
Max Efficiency 24.14% 24.80%+0.66 pp
Avg Efficiency 22.03%+0.27 pp 21.76%
Reliability & Warranty
Avg Temp Coefficient -0.332%/°C -0.316%/°C+0.016
Bifacial Share 207 (81%)+36 pp 114 (45%)
Avg Warranty 30.0 yrs+1.6 yr 28.4 yrs

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

Gamko New Energy skews to higher efficiency: 40% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Gamko New Energy offers more 600W+ panels (23% of lineup)

Gamko New Energy cell technology
Share of their models by cell architecture

Dominant cell tech: TOPCon (57%)

Suntech cell technology
Share of their models by cell architecture

Dominant cell tech: TOPCon (71%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Gamko New Energy is a Chinese manufacturer headquartered in Nantong, Jiangsu province, with roots going back to approximately 2008. By 2023 the company reported an annual production capacity of around 1.2 GW, placing it in the mid-scale tier of an industry dominated by much larger players. Gamko holds standard European market certifications including CE-EMC, CE-LVD, IEC 61215, and IEC 61730, but does not appear on BloombergNEF's Tier 1 bankability list based on available research. Suntech, by contrast, was founded in 2001 by Dr. Zhengrong Shi and has built one of the most recognized names in global solar. Despite a high-profile bankruptcy and subsequent acquisition by Shunfeng International in 2013-2014, the company has since stabilized and now operates a 10 GW TOPCon manufacturing hub. BloombergNEF ranks Suntech as the world's sixth most bankable PV module brand of all time - a distinction that reflects decades of project financing history and institutional trust. On overall institutional footprint, Suntech is significantly stronger.

Gamko's product catalog is broad, spanning output classes from 5 W off-grid modules to bifacial panels exceeding 500 W, drawing on both PERC and TOPCon cell technologies. This range makes Gamko relevant across small off-grid builds, residential rooftop systems, and light commercial applications, particularly where budget is the primary constraint. Suntech focuses its current lineup on n-type TOPCon modules under the Ultra V Pro and Ultra X Pro series, backed by 30-year linear performance warranties. The company competes across the full project spectrum, from residential rooftops to utility-scale ground mounts, and has demonstrated distribution reach in European and MENA markets. Average panel efficiency sits at around 22.0%, with flagship models reaching 23.2% according to independent review aggregators.

For a typical buyer seeking a bankable module with a documented project track record and broad installer support, Suntech is the clearer choice. Its Tier 1 status matters not only to large-scale developers requiring lender acceptance, but also to residential customers who want confidence in long-term warranty coverage from a financially stable entity. Gamko is a legitimate option for cost-sensitive projects where institutional financing is not a requirement, but buyers should factor in the relatively limited independent third-party track record. The two brands are not interchangeable: Suntech carries meaningfully greater institutional weight, while Gamko competes primarily on price and product range breadth.

Generated by Claude Sonnet · 2026-05-14

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 16 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.