Gamko New Energy vs Heckert Solar - solar panel manufacturer comparison
Gamko New Energy has the broader catalog (255 vs 155 models). Heckert Solar leads on peak efficiency at 24.30%. 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.
The two companies
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
Heckert Solar is a German company based in Chemnitz, Saxony, specializing in the development, production and distribution of solar modules. Founded in 1992, the company has become a leading supplier of photovoltaic products, serving customers in over 120 countries. They manufacture high-quality, durable, and efficient...
- Founded
- 1992
- Headquarters
- Chemnitz, Germany
- Annual capacity
- 0.8 GW/year
- Employees
- 201
Catalogue against catalogue
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.
What each of them builds
Gamko New Energy skews to higher efficiency: 40% of lineup is 23%+
Gamko New Energy offers more 600W+ panels (23% of lineup)
Dominant cell tech: <strong>TOPCon</strong> (57%)
Dominant cell tech: <strong>TOPCon</strong> (34%)
The flagships
Written summary
Gamko New Energy is a Chinese manufacturer based in Nantong, Jiangsu province, founded around 2017. The company has built annual production capacity of approximately 1.2 GW and holds a broad set of international certifications including IEC61215, IEC61730, ISO9001, and ISO14001, though it does not appear on BloombergNEF Tier 1 lists. Heckert Solar was founded in 2001 and is headquartered in Chemnitz, Germany, operating at a production capacity of around 800 MWp per year. It is currently the last solar module manufacturer maintaining continuous production on German soil - a distinction that carries real weight in European procurement decisions. Heckert is likewise absent from BloombergNEF Tier 1 rankings but holds a recognized premium position in the German and wider European market alongside names such as Solarwatt. On institutional footprint and brand credibility within Europe, Heckert Solar is the stronger of the two.
Gamko offers a wide output range from 5 W to 800 W, covering monofacial, bifacial, and flexible modules built on confirmed PERC and TOPCon cell technology. Its portfolio addresses residential rooftop, commercial C&I, and export utility segments, making it a broadly targeted supplier. Heckert Solar structures its lineup around three distinct families: the NeMo series (Made in Germany, up to 405 Wp) for standard residential rooftops; the Apollon series (Made in Germany, n-type TOPCon, up to 440 Wp), which delivers strong low-light performance alongside competitive efficiency; and the Zeus series, a glass-glass bifacial TOPCon line peaking at 480 Wp with a bifaciality factor of up to 85%, suited to both residential and commercial C&I projects. The Zeus 3.0 back-contact variant targets premium-aesthetic rooftop installations. In 2025, Stiftung Warentest awarded a "Preistipp" price recommendation to the Zeus SmartSystem configuration - an independent quality endorsement with significant resonance across the German-speaking market.
For international buyers sourcing into European projects, Heckert Solar is the safer default choice. German manufacturing provenance, a well-differentiated product range, strong warranty coverage on flagship lines, and independent third-party validation give it a clearer risk profile for installers and project financiers. Gamko New Energy may suit buyers where lower cost per watt or a wider output range is the overriding factor, but documented field quality incidents and limited visibility in European quality benchmarking reduce its appeal for risk-averse procurement. The two brands are not interchangeable - Heckert Solar commands a meaningful trust premium in the European context.
Generated by Claude Sonnet · 2026-06-08
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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.