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GL Solar vs Jinko Solar - solar panel manufacturer comparison

GL Solar
Italy Founded 2000
Read the GL Solar review
VS
Jinko Solar
China Founded 2006 Tier 1
Read the Jinko Solar review
At a glance

Jinko Solar has the broader catalog (637 vs 13 models). Jinko Solar leads on peak efficiency at 24.80%. GL Solar leans bifacial (100% 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
13 637
Highest power
640 Wp 735 Wp
Best efficiency
23.6% 24.8%
Average efficiency
22.6% 22.2%
Bifacial share
100% 36%
Average warranty
30 yrs 29 yrs
01

The two companies

Company facts, not datasheet figures
GL Solar

GL Solar Energy s.r.l. is a small Italian company based in Marcianise (Caserta) specializing in the design, production, and installation of photovoltaic systems for residential and industrial applications. The company also distributes solar panels and related equipment, working with major international brands such as...

Founded
2000
Headquarters
Marcianise, Italy
Employees
1-10
Jinko Solar

JinkoSolar is a global leader in the solar industry, manufacturing and distributing solar products and solutions to a diversified international customer base. They have a vertically integrated solar product value chain. The company is committed to providing clean, efficient, and sustainable energy solutions worldwide.

Founded
2006
Headquarters
Shanghai, China
Annual capacity
130.0 GW/year
Employees
33,830
Listed
NYSE: JKS
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric GL Solar Jinko Solar
Catalog & Power
Panel Models 13 637+624
Max Power 640 W 735 W+95 W
Avg Power 603 W+81 W 523 W
Efficiency
Max Efficiency 23.60% 24.80%+1.20 pp
Avg Efficiency 22.61%+0.43 pp 22.18%
Reliability & Warranty
Avg Temp Coefficient -0.274%/°C+0.030 -0.304%/°C
Bifacial Share 13 (100%)+64 pp 231 (36%)
Avg Warranty 30.0 yrs+1.3 yr 28.7 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

GL Solar skews to higher efficiency: 38% of lineup is 23%+

Power spread
Share of each catalogue in every power band

GL Solar offers more 600W+ panels (77% of lineup)

GL Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>HJT</strong> (54%)

Jinko Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (41%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

GL Solar is a micro-sized Italian company founded in 2000 with between 1 and 10 employees. It operates exclusively as a distributor of photovoltaic products - not as a manufacturer - and holds no proprietary panel portfolio of its own. The company acts as a reseller of modules from major international brands including Trina Solar, AIKO, and Tongwei, serving installers primarily in Italy and across Europe. Jinko Solar, by contrast, is one of the world's largest solar module manufacturers, founded in China in 2006, employing over 33,800 people, and carrying a stated annual production capacity of 130 GW. It is listed on the NYSE and holds Tier 1 bankable status, with a product catalogue spanning 545 module models, a maximum panel output of 735 Wp, average module efficiency of approximately 22%, and an average product warranty of nearly 28.5 years. The company's leading cell technology is TOPCon, and Jinko has set a world record for n-type TOPCon cell efficiency at 27.79%.

Given that GL Solar produces no modules of its own, it cannot be assessed on technical parameters such as cell technology, temperature coefficients, or efficiency ratings. Its value proposition lies in offering installers convenient access to multiple brands through a single distribution channel - useful for smaller Italian contractors, but providing no manufacturer-backed warranty or independent quality assurance. Jinko Solar, on the other hand, serves a broad range of market segments with credibility: its Tiger Neo TOPCon series is widely deployed in residential rooftop installations, commercial and industrial C&I projects, and large-scale utility ground-mount farms. With roughly 32% of its portfolio consisting of bifacial modules and 11 consecutive years as a PVEL Top Performer backed by over 300 GW of global installations, Jinko offers a well-documented track record of real-world performance.

For international buyers evaluating the two, the comparison is structurally uneven - GL Solar is a trade intermediary, while Jinko Solar is a tier-one global manufacturer. Buyers seeking a bankable, technically verifiable, and warranty-backed module for any serious installation should look to Jinko Solar, whereas GL Solar may only be relevant as a regional logistics or sourcing partner for specific European markets.

Generated by Claude Sonnet · 2026-05-12

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 2 GL Solar offers · See 160 Jinko Solar 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.