Skip to main content

AIKO vs Vespa Solar Enerji - solar panel manufacturer comparison

AIKO
China Founded 2009 Tier 1
Read the AIKO review
VS
Vespa Solar Enerji
Turkey
Read the Vespa Solar Enerji review
At a glance

AIKO has the broader catalog (144 vs 9 models). AIKO leads on peak efficiency at 25.20%. Vespa Solar Enerji leans bifacial (100% 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 9
Highest power
805 Wp 630 Wp
Best efficiency
25.2% 23.3%
Average efficiency
23.7% 21.3%
Bifacial share
24% 100%
Average warranty
30 yrs 30 yrs
01

The two companies

Company facts, not datasheet figures
AIKO
Founded
2009
Headquarters
Shanghai, China
Tier 1 bankable
Yes
Vespa Solar Enerji
Headquarters
Turkey
02

Catalogue against catalogue

Averages over every model in the database
Metric AIKO Vespa Solar Enerji
Catalog & Power
Panel Models 144+135 9
Max Power 805 W+175 W 630 W
Avg Power 581 W+67 W 514 W
Efficiency
Max Efficiency 25.20%+1.88 pp 23.32%
Avg Efficiency 23.65%+2.34 pp 21.31%
Reliability & Warranty
Avg Temp Coefficient -0.271%/°C+0.064 -0.334%/°C
Bifacial Share 35 (24%) 9 (100%)+76 pp
Avg Warranty 29.5 yrs 30.0 yrs+0.5 yr

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%)

Vespa Solar Enerji cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (89%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

AIKO is a Chinese solar manufacturer headquartered in Guangzhou, founded in 2009 with a focus on advanced cell research before scaling into module production. The company achieved BloombergNEF Tier 1 bankability status in Q3 2024 and had an annual production capacity of approximately 20 GW by early 2025, reportedly expanding toward 35 GW by mid-2026. Vespa Solar Enerji is a Turkish manufacturer based in Kayseri, established in 2022 and shipping its first panels in March 2023. No BloombergNEF Tier 1 designation was found for Vespa as of mid-2026, and the company's stated capacity sits around 300 MW per year, with infrastructure in place to scale toward 660 MW. By every institutional metric, AIKO carries the stronger global footprint.

AIKO's signature product line is built around its proprietary ABC (All Back Contact) cell architecture, a technology distinct from mainstream TOPCon and HJT approaches. Its Neostar series panels have reached module efficiencies above 24% under independent testing, combined with a notably low temperature coefficient and a 30-year product warranty. These characteristics make AIKO panels a competitive choice for premium residential rooftops and space-constrained commercial installations where every watt per square meter counts. Vespa Solar Enerji's catalog centers on MonoPERC crystalline modules in the 445 W to 555 W range, which are well-suited for standard commercial and small utility-scale ground mounts. The company reported supplying around 108 projects by early 2024, suggesting a regionally focused go-to-market approach rather than international scale.

For most buyers outside Turkey seeking bankable, high-efficiency modules in 2025-2026, AIKO is the clearer default choice, given its Tier 1 status, proven technology differentiation, and multi-GW supply reliability. Vespa Solar Enerji represents a credible domestic option for Turkish project developers who value local sourcing and supply-chain proximity, but its limited track record and sub-1 GW capacity make direct comparison with AIKO difficult at the global level.

Generated by Claude Sonnet · 2026-06-21

06

Other brand comparisons

Build your own
Manufacturers
AIKO A.B. Energy
Manufacturers
AE Solar Vespa Solar Enerji
Manufacturers
AIKO AEET
Manufacturers
AKCOME Vespa Solar Enerji
Manufacturers
AIKO ARTsolar
Manufacturers
ASM Vespa Solar Enerji
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 174 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.