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AIKO vs VNS Bulgaria - solar panel manufacturer comparison

AIKO
China Founded 2009 Tier 1
Read the AIKO review
VS
VNS Bulgaria
Bulgaria Founded 2009
Read the VNS Bulgaria 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
144 0
Highest power
805 Wp 0 Wp
Best efficiency
25.2% -
Average efficiency
23.7% -
Bifacial share
24% 0%
Average warranty
30 yrs -
01

The two companies

Company facts, not datasheet figures
AIKO
Founded
2009
Headquarters
Shanghai, China
Tier 1 bankable
Yes
VNS Bulgaria

VNS Bulgaria Ltd. was established in 2009 and focuses on manufacturing and construction of solar street lighting, solar park lighting, LED street lamps, photovoltaic systems, and various other solar systems. The company utilizes innovative technologies in its designs and constructions and has completed over 1000...

Founded
2009
Headquarters
Kurdjali, Bulgaria
Annual capacity
null GW/year
Employees
null
02

Catalogue against catalogue

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

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%)

VNS Bulgaria cell technology
Share of their models by cell architecture
04

The flagships

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

Written summary

Checking cache...

AIKO is a Chinese solar manufacturer headquartered in Guangzhou, founded in 2009, that has grown into one of the most prominently positioned producers of premium modules globally. The company achieved BloombergNEF Tier 1 status - a bankability benchmark confirming non-recourse financing by at least six commercial banks across multiple projects - and was reporting an annual production capacity in the range of 20 to 35 GW as of early 2026, placing it firmly among the leading Chinese module makers. VNS Bulgaria Ltd., by contrast, is a Bulgarian distributor and wholesaler of solar equipment rather than a manufacturer in its own right. The company resells modules from established Chinese brands including LONGi, Jinko Solar, JA Solar, Trina Solar, Canadian Solar, and Risen Energy, and also stocks inverters and storage products. VNS Bulgaria holds no independent Tier 1 or bankability designation; its market role is that of a regional procurement intermediary. In terms of institutional footprint and manufacturing credibility, AIKO holds a substantially stronger position.

AIKO's product line centers on its proprietary ABC (All-Back-Contact) technology, which moves all electrical contacts to the rear of the cell, eliminating front-surface shading and enabling certified panel efficiencies above 24% - with its Neostar 3P line reaching 25.0% in independent tests. The technology also delivers a notably low temperature coefficient and reduced first-year degradation, making AIKO panels most competitive for premium residential rooftops and space-constrained commercial installations where output per square meter is critical. VNS Bulgaria, operating as a distributor, carries a broader technology mix that reflects whatever its upstream suppliers manufacture - PERC, TOPCon, and HJT modules are all potentially available depending on which brand is sourced. Its "product range" is therefore derivative of the manufacturers it represents rather than a reflection of any in-house R&D.

For a buyer seeking high-efficiency panels backed by a direct manufacturer warranty and bankable Tier 1 credentials, AIKO is the clear choice. VNS Bulgaria serves a different function - it is a regional procurement channel useful for projects that prioritize supply-chain flexibility, multi-brand sourcing, or local logistics support in the Balkans and Central Europe, not a competing manufacturer.

Generated by Claude Sonnet · 2026-06-22

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 171 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.