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ET Solar vs ARTsolar - solar panel manufacturer comparison

ET Solar
China Founded 2005
Read the ET Solar review
VS
ARTsolar
South Africa Founded 2010
Read the ARTsolar 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
10 0
Highest power
555 Wp 0 Wp
Best efficiency
21.4% -
Average efficiency
21.0% -
Bifacial share
50% 0%
Average warranty
28 yrs -
01

The two companies

Company facts, not datasheet figures
ET Solar
Founded
2005
Headquarters
Nanjing, China
ARTsolar
Founded
2010
Headquarters
Durban, South Africa
02

Catalogue against catalogue

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

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

ARTsolar cell technology
Share of their models by cell architecture
04

The flagships

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

Written summary

Checking cache...

ET Solar is a Chinese module manufacturer founded in 2005 and headquartered in Nanjing. The company has shipped more than 7.2 GW of modules globally and has held a BloombergNEF Tier 1 bankability rating since 2012 - a distinction it has maintained continuously even through a difficult financial period in which its U.S. distribution subsidiary filed for Chapter 11 protection in 2017 (later settled in 2018) and, separately, a key shareholder entered bankruptcy proceedings in 2020. Its manufacturing base is anchored in Vietnam and Cambodia. ARTsolar, by contrast, is a regional player founded in 2010 in Durban, South Africa, and bills itself as the country's only 100% locally owned solar panel manufacturer. Through a 2025 partnership with Chinese Tier 1 manufacturer JA Solar, it has upgraded its Durban facility to a 340 MW annual assembly line, a meaningful step up but still far below ET Solar's reported multi-gigawatt global throughput. ARTsolar does not appear on publicly cited BloombergNEF Tier 1 lists. ET Solar carries the stronger institutional footprint for international project finance.

On the product side, ET Solar offers modules suited to utility-scale ground mounts and commercial rooftop systems, with its catalog having evolved beyond legacy PERC toward higher-efficiency technologies as its Southeast Asian manufacturing base has modernized. ARTsolar's recent tie-up with JA Solar has refocused its output on large-format, high-efficiency modules - specifically the JA Solar DeepBlue 4.0 Pro series - assembled locally with Swiss and German equipment. This targets South African residential and commercial segments, and carries particular weight for projects seeking qualification under the Renewable Energy Independent Power Producer Procurement Programme, where local content criteria give ARTsolar a structural advantage no import-reliant competitor can match.

For a buyer outside South Africa, ET Solar is the more natural choice given its long Tier 1 track record and global delivery history, though its past financial turbulence is worth noting in due-diligence conversations with lenders. For a South African buyer - particularly one pursuing REIPPPP eligibility - ARTsolar's locally assembled, JA Solar-backed line is a well-positioned and strategically rational option that should not be dismissed on scale alone.

Generated by Claude Sonnet · 2026-05-16

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.

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.