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Tongwei vs A.B. Energy - solar panel manufacturer comparison

Tongwei
China Founded 2013 Tier 1
Read the Tongwei review
VS
A.B. Energy
Germany Founded 1996
Read the A.B. Energy review
At a glance

Tongwei has the broader catalog (122 vs 0 models). Tongwei leans bifacial (69% 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
122 0
Highest power
750 Wp 0 Wp
Best efficiency
24.2% -
Average efficiency
22.6% -
Bifacial share
69% 0%
Average warranty
30 yrs -
01

The two companies

Company facts, not datasheet figures
Tongwei
Founded
2013
Headquarters
Chengdu, China
Tier 1 bankable
Yes
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 Tongwei A.B. Energy
Catalog & Power
Panel Models 122+122 0
Max Power 750 W+750 W 0 W
Avg Power 584 W+584 W 0 W
Efficiency
Max Efficiency 24.20% -
Avg Efficiency 22.59% -
Reliability & Warranty
Avg Temp Coefficient -0.284%/°C -
Bifacial Share 84 (69%)+69 pp 0 (0%)
Avg Warranty 29.5 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

Tongwei skews to higher efficiency: 41% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Tongwei offers more 600W+ panels (53% of lineup)

Tongwei cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>TOPCon</strong> (47%)

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...

Tongwei is a Chinese manufacturer headquartered in Chengdu, Sichuan, founded in 1984 as a fish-feed and aquaculture business before pivoting aggressively into solar over the past decade. It holds BloombergNEF Tier 1 status and by 2025 had built one of the largest cell and module production bases in the world, with reported module capacity in the range of 60-90 GW per year and cumulative shipments that crossed the 100 GW milestone. A.B. Energy, by contrast, is a small Italian company - listed on ENF Solar as a seller and distributor rather than a panel manufacturer - with roots in electrical and electronic equipment distribution and a stated mission around energy efficiency consultancy and resale. No credible industry source places A.B. Energy on any Tier 1 or bankability list. Tongwei has an incomparably stronger institutional footprint.

On the product side, Tongwei's commercial catalog centers on its TNC series of n-type TOPCon modules, available in large-format G12 wafers, with bifaciality factors and efficiency ratings verified by third-party labs and reported in publications such as pv-magazine. The company also runs pilot HJT lines under its THC branding and is actively developing xBC and perovskite-tandem roadmaps, positioning it for utility-scale ground mounts and increasingly for premium commercial rooftops where high-watt modules reduce balance-of-system costs. A.B. Energy's product offering, based on available information, consists of sourced or resold panels from third-party manufacturers rather than any proprietary module family, making a technology-level comparison impossible without knowing which brands it distributes at any given time.

For any buyer operating at scale in 2025 - whether a utility developer, a commercial EPC, or an installer seeking bankable equipment - Tongwei is the clear default choice, backed by documented production capacity, third-party efficiency data, and Tier 1 status. A.B. Energy may serve a role as a local Italian distributor for smaller projects, but it cannot be evaluated or compared as a manufacturer in the same frame.

Generated by Claude Sonnet · 2026-06-21

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 72 Tongwei 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.