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AIKO vs GL Solar - solar panel manufacturer comparison

AIKO
China Founded 2009 Tier 1
Read the AIKO review
VS
GL Solar
Italy Founded 2000
Read the GL Solar review
At a glance

AIKO has the broader catalog (144 vs 13 models). AIKO leads on peak efficiency at 25.20%. 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
144 13
Highest power
805 Wp 640 Wp
Best efficiency
25.2% 23.6%
Average efficiency
23.7% 22.6%
Bifacial share
24% 100%
Average warranty
30 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
AIKO
Founded
2009
Headquarters
Shanghai, China
Tier 1 bankable
Yes
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
02

Catalogue against catalogue

Averages over every model in the database
Metric AIKO GL Solar
Catalog & Power
Panel Models 144+131 13
Max Power 805 W+165 W 640 W
Avg Power 581 W 603 W+22 W
Efficiency
Max Efficiency 25.20%+1.60 pp 23.60%
Avg Efficiency 23.65%+1.04 pp 22.61%
Reliability & Warranty
Avg Temp Coefficient -0.271%/°C+0.003 -0.274%/°C
Bifacial Share 35 (24%) 13 (100%)+76 pp
Avg Warranty 29.5 yrs 30.0 yrs+0.5 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

AIKO skews to higher efficiency: 85% of lineup is 23%+

Power spread
Share of each catalogue in every power band

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

AIKO cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>Back Contact</strong> (83%)

GL Solar cell technology
Share of their models by cell architecture

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

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

GL Solar, operating formally as GL Solar Energy S.R.L., is a small photovoltaic module manufacturer founded around 2000 and based in Marcianise, in the Campania region of southern Italy. The company employs a modest technical and production team and is focused on modules for off-grid and stand-alone applications rather than mainstream grid-tied markets. No BloombergNEF Tier 1 designation for GL Solar has been identified through publicly available sources, and it does not appear on major bankability or module supplier lists. AIKO Energy, by contrast, is a Chinese manufacturer founded in 2009 and headquartered in Yiwu, Zhejiang Province. AIKO achieved BloombergNEF Tier 1 status in Q3 2024 - a ranking attained by roughly 2% of solar companies worldwide - and has confirmed production facilities across Zhuhai, Yiwu, and a new large-scale Jinan site designed for multi-GW output. AIKO holds a substantially larger institutional footprint and global commercial presence than GL Solar.

AIKO has built its identity around all-back-contact (ABC) cell technology, which it is widely credited with bringing to mass production scale ahead of the broader industry. Its Neostar and Comet series target premium residential rooftops and high-efficiency commercial installations, with module efficiencies confirmed at around 25% and mass-produced cell efficiencies reported to have exceeded 27.3% - figures that have ranked at or near the top of Taiyangnews global efficiency tables since 2023. GL Solar's available product range appears oriented toward lower-wattage, off-grid, and standalone configurations, serving a regional southern European market rather than utility or grid-tied residential customers globally.

For most buyers in 2025, AIKO is the stronger default choice. It carries third-party bankability recognition, PVEL Top Performer status, and won the 2025 SolarQuotes Installers' Choice Award, signaling broad installer confidence. GL Solar may be a reasonable consideration for niche off-grid or small stand-alone projects in southern Europe, but it is not a comparable option for grid-tied or institutionally financed installations.

Generated by Claude Sonnet · 2026-06-11

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 174 AIKO offers · See 2 GL 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.