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AIKO vs Selfa - solar panel manufacturer comparison

AIKO
China Founded 2009 Tier 1
Read the AIKO review
VS
Selfa
Poland Founded 1992
Read the Selfa review
At a glance

AIKO has the broader catalog (144 vs 34 models). AIKO leads on peak efficiency at 25.20%. 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
144 34
Highest power
805 Wp 550 Wp
Best efficiency
25.2% 22.6%
Average efficiency
23.7% 20.5%
Bifacial share
24% 9%
Average warranty
30 yrs 28 yrs
01

The two companies

Company facts, not datasheet figures
AIKO
Founded
2009
Headquarters
Shanghai, China
Tier 1 bankable
Yes
Selfa
Founded
1992
Headquarters
Bydgoszcz, Poland
02

Catalogue against catalogue

Averages over every model in the database
Metric AIKO Selfa
Catalog & Power
Panel Models 144+110 34
Max Power 805 W+255 W 550 W
Avg Power 581 W+178 W 404 W
Efficiency
Max Efficiency 25.20%+2.60 pp 22.60%
Avg Efficiency 23.65%+3.17 pp 20.48%
Reliability & Warranty
Avg Temp Coefficient -0.271%/°C+0.078 -0.348%/°C
Bifacial Share 35 (24%)+15 pp 3 (9%)
Avg Warranty 29.5 yrs+1.7 yr 27.8 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)

AIKO cell technology
Share of their models by cell architecture

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

Selfa cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (74%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Selfa is a Polish manufacturer with roots going back to 1932, when it was established as a producer of electric heating elements near Torun. It entered photovoltaics in 2004 and launched an automated module production line in 2012, remaining a fully Polish-owned company. No BloombergNEF Tier 1 listing for Selfa appears in publicly available sources, and annual production volume is not disclosed at scale, suggesting a regional rather than global industrial footprint. AIKO, founded in 2009 and headquartered in Shanghai, reports roughly 20 GW of production capacity as of early 2025, operates six manufacturing plants and three R&D centers across China and Europe, and employs more than 15,000 people. AIKO achieved BloombergNEF Tier 1 status in Q3 2024, confirming bankability for internationally financed projects. By institutional scale and market reach, AIKO holds the decisively stronger footprint.

Selfa's product line centers on monocrystalline modules using PERC and TOPCon cell technologies, covering power classes from roughly 410 Wp to 550 Wp. The brand is oriented toward residential and small commercial rooftops in Central and Eastern Europe, backed by European certifications from VDE and KIWA Cermet Italia. AIKO has built its identity around a proprietary N-type ABC (All Back Contact) architecture. Its Comet series posted a verified mass-production module efficiency of 25.2% at Intersolar Munich 2024, and the newer INFINITE bifacial line exceeds 25% - figures that represent the leading edge of commercially available panels. AIKO targets premium residential rooftops where space efficiency is at a premium, as well as competitive commercial installations; it won the 2025 SolarQuotes Installers' Choice Awards ahead of REC and JinkoSolar.

For most buyers outside Central and Eastern Europe, AIKO is the stronger default in 2025: Tier 1 bankability, an industry-leading efficiency record, and a 30-year performance warranty make it a credible premium option. Selfa is a reasonable choice for Polish or regional buyers who value locally manufactured modules and nearby after-sales support, but it cannot match AIKO's technological depth or global track record. These are not interchangeable brands - they serve distinct buyer profiles.

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 179 AIKO offers · See 7 Selfa 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.