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Astronergy vs Seraphim - solar panel manufacturer comparison

Astronergy
China Founded 2006 Tier 1
Read the Astronergy review
VS
Seraphim
China Founded 2011 Tier 1
Read the Seraphim review
At a glance

Seraphim has the broader catalog (160 vs 150 models). Astronergy leads on peak efficiency at 24.80%.

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
150 160
Highest power
735 Wp 730 Wp
Best efficiency
24.8% 23.5%
Average efficiency
22.7% 21.8%
Bifacial share
69% 69%
Average warranty
30 yrs 29 yrs
01

The two companies

Company facts, not datasheet figures
Astronergy

Astronergy is a global manufacturer and supplier of solar modules, and a subsidiary of Chint Group, one of the world's leading providers of smart energy solutions. The company focuses on the R&D, production, and sales of high-efficiency crystalline silicon PV cells and PV modules. Astronergy has established...

Founded
2006
Headquarters
Hangzhou, China
Annual capacity
76+ GW/year
Employees
12000+
Tier 1 bankable
Yes
Seraphim

Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...

Founded
2011
Headquarters
Changzhou, China
Annual capacity
13 GW/year
Employees
1001-5000
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Astronergy Seraphim
Catalog & Power
Panel Models 150 160+10
Max Power 735 W+5 W 730 W
Avg Power 540 W 549 W+10 W
Efficiency
Max Efficiency 24.80%+1.30 pp 23.50%
Avg Efficiency 22.71%+0.88 pp 21.82%
Reliability & Warranty
Avg Temp Coefficient -0.293%/°C+0.023 -0.316%/°C
Bifacial Share 104 (69%) 111 (69%)+0 pp
Avg Warranty 29.6 yrs+0.9 yr 28.8 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

Astronergy skews to higher efficiency: 39% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Astronergy offers more 600W+ panels (40% of lineup)

Astronergy cell technology
Share of their models by cell architecture

Dominant cell tech: TOPCon (89%)

Seraphim cell technology
Share of their models by cell architecture

Dominant cell tech: PERC (52%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Astronergy is a Chinese module manufacturer founded in 2006 and headquartered in Zhejiang province, operating under the large CHINT Group industrial conglomerate. The company holds BloombergNEF Tier 1 status, ranking among the top six manufacturers in BNEF's bankability rankings, and was named a Tier 1 Cleantech Company by S&P Global Commodity Insights in 2025. Cumulative shipments have surpassed 150 GW, with roughly 35 GW of module capacity spread across manufacturing bases in China, Thailand, and Turkey. Seraphim, founded in 2011 in Changzhou, Jiangsu, is a smaller player but has maintained BNEF Tier 1 status continuously since 2015. Its production capacity sits around 13 GW across six factories, five in China and one in South Africa. On institutional footing, Astronergy clearly has the edge, backed by CHINT's scale and a broader global manufacturing footprint.

Both brands center their lineups on n-type TOPCon cell technology, with Astronergy also carrying some PERC-based products. Astronergy modules serve residential rooftops, commercial and industrial (C&I) installations, and utility-scale ground-mount projects, with average efficiencies around 22.7 percent and top-tier models reaching approximately 24.8 percent. Seraphim's TOPCon-based Nebula series reaches efficiencies of roughly 22.5 percent, and the brand positions itself as a value option offering an estimated 15 to 20 percent cost savings versus premium manufacturers, appealing mainly to price-sensitive residential and smaller commercial buyers.

For a typical international buyer prioritizing predictability, Astronergy is the safer default given its larger scale, deeper corporate backing, and strong independent test results such as PV Evolution Labs reports. Seraphim can be a reasonable budget alternative, but its warranty support has drawn documented complaints in markets like Australia, including unreliable contact channels and slow claims processing, so buyers should verify local after-sales support before committing to the brand.

Generated by Claude Sonnet 5 · 2026-09-27

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 36 Astronergy offers · See 5 Seraphim 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.