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

A.B. Energy
Germany Founded 1996
Read the A.B. Energy review
VS
ET Solar
China Founded 2005
Read the ET Solar review
At a glance

ET Solar has the broader catalog (10 vs 0 models). ET Solar leans bifacial (50% 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
0 10
Highest power
0 Wp 555 Wp
Best efficiency
- 21.4%
Average efficiency
- 21.0%
Bifacial share
0% 50%
Average warranty
- 28 yrs
01

The two companies

Company facts, not datasheet figures
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
ET Solar
Founded
2005
Headquarters
Nanjing, China
02

Catalogue against catalogue

Averages over every model in the database
Metric A.B. Energy ET Solar
Catalog & Power
Panel Models 0 10+10
Max Power 0 W 555 W+555 W
Avg Power 0 W 542 W+542 W
Efficiency
Max Efficiency - 21.40%
Avg Efficiency - 20.99%
Reliability & Warranty
Avg Temp Coefficient - -0.340%/°C
Bifacial Share 0 (0%) 5 (50%)+50 pp
Avg Warranty - 27.5 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
Power spread
Share of each catalogue in every power band
A.B. Energy cell technology
Share of their models by cell architecture
ET Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (100%)

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...

ET Solar is a Chinese solar panel manufacturer founded in 2005 and headquartered in Nanjing, China. The company operates a vertically integrated supply chain covering ingots, wafers, cells, and modules, and has shipped more than 7.2 GW worldwide since its founding. It holds BloombergNEF Tier 1 status, meaning project finance banks have extended non-recourse debt to projects built with its modules - a key benchmark for institutional buyers. Production capacity is estimated at around 1.7 GW per year, placing it in the mid-tier of Chinese manufacturers by volume. Its US operations filed for Chapter 11 bankruptcy in 2017 under pressure from American trade tariffs, but successfully reorganized and relaunched by 2019; in September 2023, Anhui Gourgen acquired a majority stake. On institutional footprint, ET Solar carries measurably more weight than its counterpart here, given its verified bankability and multi-gigawatt global track record.

A.B. Energy srls is an Italian business based in Catanzaro, southern Italy, with roots in the electric and electronic equipment sector. Critically, available sources list it as a solar distributor and seller rather than a panel manufacturer - it resells modules from brands such as REC Solar, JA Solar, Trina Solar, and LONGi Solar, alongside inverters and storage systems. No independent manufacturing review, BNEF Tier 1 listing, or production capacity data exists for A.B. Energy, which is consistent with its role as a regional reseller serving the Italian domestic market rather than a panel fabricator.

A direct product-to-product comparison is therefore difficult to make fairly. ET Solar is a bankable panel manufacturer with its own cell-to-module production line and a global distribution footprint. A.B. Energy is better understood as a procurement channel that supplies panels made by third-party brands. For a buyer seeking manufacturer-backed warranties, bankability certification, and production-level quality controls, ET Solar is the clearer default. Buyers in Italy already working with A.B. Energy as a local supplier should be aware they are effectively buying whichever brand that distributor sources, not an A.B. Energy-fabricated panel.

Generated by Claude Sonnet · 2026-06-23

06

Other brand comparisons

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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.

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.