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Epax Solar vs AIKO - solar panel manufacturer comparison

Epax Solar
Germany Founded 2019
Read the Epax Solar review
VS
AIKO
China Founded 2009 Tier 1
Read the AIKO review
At a glance

AIKO has the broader catalog (144 vs 0 models). AIKO leans bifacial (24% 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
0 144
Highest power
0 Wp 805 Wp
Best efficiency
- 25.2%
Average efficiency
- 23.7%
Bifacial share
0% 24%
Average warranty
- 30 yrs
01

The two companies

Company facts, not datasheet figures
Epax Solar

Epax Solar is an owner-managed wholesaler for photovoltaic components. They reliably supply solar installers across Germany and Europe with a wide product portfolio, thanks to direct manufacturer partnerships and efficient logistics. Epax Solar is committed to clean energy generation and sustainability.

Founded
2019
Headquarters
Deggendorf, Germany
Employees
1-10
AIKO
Founded
2009
Headquarters
Shanghai, China
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Epax Solar AIKO
Catalog & Power
Panel Models 0 144+144
Max Power 0 W 805 W+805 W
Avg Power 0 W 581 W+581 W
Efficiency
Max Efficiency - 25.20%
Avg Efficiency - 23.65%
Reliability & Warranty
Avg Temp Coefficient - -0.271%/°C
Bifacial Share 0 (0%) 35 (24%)+24 pp
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

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

Power spread
Share of each catalogue in every power band

AIKO offers more 600W+ panels (60% of lineup)

Epax Solar cell technology
Share of their models by cell architecture
AIKO cell technology
Share of their models by cell architecture

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

04

The flagships

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

Written summary

Checking cache...

Epax Solar is a German company headquartered in Deggendorf, Bavaria, operating as an owner-managed, family-run photovoltaic wholesale distributor rather than a primary panel manufacturer. The company supplies solar installers and contractors across Germany and the wider European market with a broad range of PV components - modules, inverters, storage systems, and mounting hardware - sourced from partner manufacturers. No BloombergNEF Tier 1 bankability designation has been documented for Epax Solar, and no independently verified annual production capacity in gigawatts applies, as the firm does not operate its own large-scale cell or module fabrication. AIKO Solar, by contrast, is a Chinese manufacturer founded to develop and commercialize its proprietary all-back-contact cell technology, and by Q1 2025 the company reported approximately 20 GW of annual module production capacity. AIKO achieved BloombergNEF Tier 1 status in Q3 2024, confirming that its modules have been used in bankable, non-recourse financed projects worldwide. On institutional footprint, AIKO holds a substantially stronger position.

AIKO's product families center on N-type ABC (all-back-contact) modules, with lines such as Neostar targeting premium residential rooftops and the Infinite and Navigator series addressing commercial and industrial ground-mount applications. A March 2025 pv-magazine report noted a 500 W C&I back-contact module rated at 25% efficiency, and a February 2025 report documented a 480 W residential panel at 24.3% module efficiency - figures independently verified by industry press. Epax Solar, as a distributor, does offer panels under its own brand label, with ENF Solar listing models in roughly the 375-460 W range, but cell technology, efficiency ratings, and underlying manufacturer details are not transparently published, making direct technical comparison difficult.

For a typical buyer in 2025 looking for a bankable, high-efficiency panel with documented warranties and third-party validation, AIKO is the clearer choice. Epax Solar serves a different function - it is primarily a B2B distribution channel for the German and European installer trade, not a competing panel brand in the same sense. The two are not directly interchangeable: one is a vertically integrated module manufacturer with a global footprint, the other is a regional wholesaler.

Generated by Claude Sonnet · 2026-05-14

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 170 AIKO 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.