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GL Solar vs A.B. Energy - solar panel manufacturer comparison

GL Solar
Italy Founded 2000
Read the GL Solar review
VS
A.B. Energy
Germany Founded 1996
Read the A.B. Energy review
At a glance

GL Solar has the broader catalog (13 vs 0 models). 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 0
Highest power
640 Wp 0 Wp
Best efficiency
23.6% -
Average efficiency
22.6% -
Bifacial share
100% 0%
Average warranty
30 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
A.B. Energy

ABO Energy is a renewable energy company that develops and constructs renewable energy projects, focusing on wind, solar, and storage facilities. They offer turnkey solutions and have connected several gigawatts of nominal output to the grid. The company is active internationally and is committed to driving the energy...

Founded
1996
Headquarters
Wiesbaden, Germany
Employees
1,400
02

Catalogue against catalogue

Averages over every model in the database
Metric GL Solar A.B. Energy
Catalog & Power
Panel Models 13+13 0
Max Power 640 W+640 W 0 W
Avg Power 603 W+603 W 0 W
Efficiency
Max Efficiency 23.60% -
Avg Efficiency 22.61% -
Reliability & Warranty
Avg Temp Coefficient -0.274%/°C -
Bifacial Share 13 (100%)+100 pp 0 (0%)
Avg Warranty 30.0 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%)

A.B. Energy cell technology
Share of their models by cell architecture
04

The flagships

Highest-power models from each brand
A.B. Energy all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

GL Solar Energy is a small Italian photovoltaic company founded in 2000 and headquartered in Marcianise, in the Campania region. It operates primarily as a regional producer and installer of PV modules for stand-alone applications, certified to ISO 9001:2008 and recognised as a Fronius Service Partner since 2009. With a reported headcount of under twenty employees, its scale is firmly local. A.B. Energy srls is also Italy-based, operating chiefly as a distributor of solar components - sourcing panels from global brands such as JA Solar, Trina Solar, and LONGi, and inverters from SMA, Fronius, and SolarEdge. Neither company appears on BloombergNEF or comparable Tier 1 manufacturer rankings, which reflects their niche positioning. Of the two, A.B. Energy carries a wider portfolio by virtue of its multi-brand distribution model, giving it a marginally broader domestic reach.

GL Solar typically serves residential and light commercial customers in southern Italy, with a focus on off-grid and stand-alone system design. A.B. Energy, in addition to distributing established global brands, appears to offer some house-branded products - ENF Solar's panel directory lists an N-Type TOPCon bifacial module under the A.B. Energy label, alongside inverter offerings in the 3-6 kW residential range. This positions A.B. Energy as a one-stop shop for customers who want panels, inverters, and system components from a single point of contact.

For a typical buyer in 2025 seeking solid bankability and long-term manufacturer support, neither brand competes with the major Tier 1 producers. GL Solar is best suited to buyers who prioritise local Italian expertise and hands-on technical support for off-grid projects. A.B. Energy is the more flexible option for grid-tied residential installations, particularly because it can supply proven panels from the very global manufacturers it distributes alongside its own-label alternatives.

Generated by Claude Sonnet · 2026-06-13

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

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.