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AIKO vs First Solar - solar panel manufacturer comparison

AIKO
China Founded 2009 Tier 1
Read the AIKO review
VS
First Solar
USA Founded 1999 Tier 1
Read the First Solar review
At a glance

AIKO has the broader catalog (144 vs 63 models). AIKO leads on peak efficiency at 25.20%.

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 63
Highest power
805 Wp 550 Wp
Best efficiency
25.2% 19.7%
Average efficiency
23.7% 18.6%
Bifacial share
24% 19%
Average warranty
30 yrs 29 yrs
01

The two companies

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

First Solar is a leading American solar technology company and global provider of responsibly produced eco-efficient solar modules, advancing the fight against climate change. The company manufactures thin-film photovoltaic (PV) modules using cadmium telluride (CdTe) semiconductor technology. First Solar is unique...

Founded
1999
Headquarters
Tempe, AZ, USA
Annual capacity
21+ GW/year
Employees
5500-8100
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric AIKO First Solar
Catalog & Power
Panel Models 144+81 63
Max Power 805 W+255 W 550 W
Avg Power 581 W+101 W 481 W
Efficiency
Max Efficiency 25.20%+5.50 pp 19.70%
Avg Efficiency 23.65%+5.10 pp 18.56%
Reliability & Warranty
Avg Temp Coefficient -0.271%/°C+0.049 -0.320%/°C
Bifacial Share 35 (24%)+5 pp 12 (19%)
Avg Warranty 29.5 yrs+0.2 yr 29.3 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%)

First Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>CdTe</strong> (81%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

First Solar is an American manufacturer headquartered in Tempe, Arizona, founded in 1999 and traded on the NASDAQ. It is the only large-scale module producer based in the Western hemisphere and has consistently held a strong bankability position with institutional financiers. The company operates factories across the United States, India, Malaysia, and Vietnam, and by 2025 its combined nameplate capacity had grown well beyond 14 GW annually, with further expansion underway toward a stated target approaching 20 GW. AIKO is a Chinese manufacturer founded in 2009 and headquartered in Guangzhou, China. It holds Bloomberg NEF Tier 1 bankability status and has reported annual production capacity exceeding 5 GW, a figure that has grown rapidly alongside its technology push. Between the two, First Solar carries the stronger institutional footprint in Western markets, particularly in the United States where domestic manufacturing grants it significant advantages under the Inflation Reduction Act.

The two companies serve almost entirely different market segments, which makes a head-to-head comparison somewhat unusual. First Solar produces its Series 6 and Series 7 modules, both built on its proprietary cadmium telluride (CdTe) thin-film technology. These large-format modules are engineered almost exclusively for utility-scale ground-mount projects, and the company does not meaningfully compete in the residential or small commercial rooftop segment. AIKO, by contrast, has staked its identity on N-type all back contact (ABC) cell technology, which eliminates front-side shading losses by moving all electrical contacts to the rear of the cell. Its Neostar series targets residential rooftops with compact high-efficiency panels, the Comet series serves commercial and industrial rooftops at higher wattages, and the company has also introduced bifacial ABC modules aimed at utility applications.

For a residential or commercial rooftop buyer in 2025, First Solar is simply not a realistic option - its products and sales model are oriented toward large project developers. AIKO, with its ABC technology and strong installer reception, is a credible premium choice for those segments. For utility-scale developers, particularly in North America, First Solar's domestic supply chain, thin-film performance advantages in high-temperature environments, and deep project-finance track record make it the default institutional pick. The two brands are not interchangeable - the right choice depends almost entirely on project scale and geography.

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

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.