List of products by brand Seraphim

Seraphim (officially Jiangsu Seraphim Solar System Co., Ltd) was founded in 2011 in Changzhou, Jiangsu province, China. . Since its inception, the company showed a clear orientation towards vertically integrated development: it not only manufactures finished solar modules, but also the photovoltaic cells used in them . .

Initial

• 2011: Foundation of the company. ISO 9001, ISO 14001, OHSAS 18001 certifications, as well as significant approvals from agencies such as MCS (United Kingdom), CEC (Australia) and CSA (Canada) 

• 2012: Development of the DuraflexTM module, certified against saline and ammonia fog, and PolarisTM and SolarisTM AC series release 

• 2013: First company to approve the demanding “Thresher Test” of TÜV SÜD; launch PolarisTM and SolarisTM AC modules

• 2015: The first “Smart Manufacturing” plant is established in Jiangsu, and Seraphim is qualified Tier 1 bNEF Manufacturers Index 

Expansion and industrial development

In the next decade, Seraphim has opened several manufacturing plants, in countries like Australia, , South Africa, , Vietnam and Vietnam again, progressively increasing its productive capacity:

• 2016Global capacity reached 2.1 GW 

• 2017: He arrived at 3 GW, with certifications like that of the CNAS laboratory 

• 2018: Capacity 4 GW; plant in South Africa; launch of PERC-type bifacial modules 

• 2019–2020: Continue expansion; 5 GW capacity in 2019, 5.5 GW in 2020; first series of S2, S3, S4 modules released between 2019 and 2020 . .

• 2021–2023: New plants in Anhui; capacity 7.5 GW in 2022 and 12 GW in 2023; in 2024 they reach 13 GW globally . .

These achievements not only reflect sustained growth, but also recognition by certifying entities as TÜV SÜD, , CSA, , DEKRA, , CNAS, , CTC and CGC, which have certified their internal laboratories for quality and reliability testing 

Classification Tier 1

The term Tier 1, as defined by Bloomberg New Energy Finance (BNEF), is based on “bankability” criteria: capacity to support projects with non-recourse funding by banks, historical delivery and financial stability

Seraphim has maintained this distinction since its first inclusion in 2015, , being recognized as manufacturer Tier 1 by BNEF at least 11 consecutive years until 2025. . This recognition ensures that its modules are considered by banking as reliable and suitable for large-scale projects.

In addition, Seraphim has been evaluated Top Performer on multiple occasions (5 times) per PVEL/DNV GL, a rigorous testing program on ageing, attenuation and field performance

Reddit also confirms its listing in lists such as 1TQ in 2019, along with other major manufacturers: “Seraphim” appears among names such as Canadian Solar, LONGi or Jinko Solar 

Main technological features

Seraphim offers a variety of module technologies, highlighting in efficiency, durability, aesthetics and adaptability to different environments.

Cell and efficiency

• Monocrystalline PERC: technology core in almost all series from S2 to S5. PERC adds a reflective layer that improves light capture 

• Half-cut cells (half-cut cells): lower internal resistance and better shade behavior; used in S2-S5 modules . .

• Multi Busbar (MBB): multiple collector bars to reduce electrical losses 

• Bifacial " dual-glass: absorb light on both sides, ideal for ground installations or reflective surfaces; very present in S4 (up to 540 W bifacial) and S5 (up to 600 W+) 

Materials and construction

• Tempered glass AR low iron for better luminous transmission 

• High gelatin EVA + UV protection to seal and protect against vibrations . .

• Backsheet fluoridated + PET intermediate: climate resistance and solar reflection 

• Anodized framework: designed to withstand wind loads (2 400 Pa) and snow (5 400 Pa) for 25 years Junction Box IP68 with anti-hot spot diodes

Quality and reliability

• Triple inspection (electroluminescence) to detect microgritures 

• Anti-PID certified by TÜV SÜD 

• Triple IEC approvals (Thresher) for extreme heat-humidity tests, cycles, UV and hot-spot

• Excellent results in field tests such as Photon outdoor test: leader for several years . .

• Internal laboratories accredited by CSA, TUV, DEKRA, CNAS, CTC, CGC, etc.

• In 2023, his series S4 received the “Low‐Carbon” certificate CERTISOLIS, reporting a CO2 footprint of 417 kg Eq CO2/kWp ( 15% less than competitors in France) 

• Premied as Jiangsu Provincial Green Factory in 2024 

• More than 100 patents technology that support its innovative approach

Guarantees

• Warranty product of 15 years (more than the 12-year standard) for the S2 series

• 25-year linear power guarantee with rate of degradation between 0.25% and 0.55% per year, depending on the series

Perception in the market

Technical assessment

• The Pass of the Thresher Test in 2013 demonstrated its technical capacity since the beginning 

• Several Reddit installers and users have reported good experience with their panels, although there is some debate about the degradation rate (0.5–0.7 %) compared to premium competitors that guarantee 0.25–0.5 %

• An Australian opinion of a professional installer highlighted:

  “it hit me... second best performance ratio, only surpassed by Sunpower... plus, cheaper” 

Comparison with other brands

• In forums like r/solar, Seraphim is recognized as a reliable brand Tier 1, although it does not reach the premium level of brands like REC, Q‐Cells or SunPower

• Competitive advantages:

  • Better value for money.

  • Continuous innovation (more than 100 patents).

  • Solid efficiency and certified reliability.

• Considerations:

  • Increased rate of comparative degradation.

  • Perception of coexistence between cost and reliability.