Seraphim launches high-efficiency S5 module series with a conversion efficiency of 21.57%

Facebook
Twitter
LinkedIn
Reddit
Email

Solar module manufacturer Seraphim has launched its new S5 series of high-efficiency PV modules with a maximum power output of up to 670W and an efficiency of 21.57%.

The S5 series integrates 210mm silicon wafers with multi-busbar, half-cell, dual-glass technologies and can achieve stronger performance and reliability by increasing the light-receiving area, while ensuring the cell efficiency, Seraphim said.

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

The new product also adopts 0.8mm high-density encapsulation technology to “significantly enhance power density of the modules” compared with 2mm cell spacing, Seraphim said.

Changzhou, China-headquartered Seraphim, which BNEF rates as a Tier-1 module maker, has rolled out two versions in its launch – 132 cells and 120 cells – and has paired them with choices of single-glass and bifacial dual-glass configurations, with a power output ranging from 595W to 670W.

Products in the S5 series have been subjected to multiple tests – PID, hail, sand-dust and ammonia – and demonstrated “high reliability”, with Seraphim expecting them to be “powerful contenders in the field of highly-efficient PV module products”. Seraphim has been named as a top PV module manufacturer by PV Evolution Labs, which tests module performance.

Seraphim “has invested a great amount of effort in R&D and has accumulated a rich and unique experience in the research and development of the expertise and technology of highly-efficient modules,” said Polaris Li, chairman and president of Seraphim, who recently spoke with PV Tech Premium about how his company was planning for a ‘post-PERC’ era of solar PV.

And, in September last year, Seraphim started construction on new phases of its 10GW module manufacturing facility in Jinzhai, China. The first phase of the project was put into operation in June last year, with second and third phases expected to enter commercial operations in 2022 and 2023, respectively.

10 March 2026
Frankfurt, Germany
The conference will gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing out to 2030 and beyond.

Read Next

September 17, 2025
Chinese module producer DAS Solar is planning a 5GW manufacturing facility focused on producing high-efficiency back contact cells.
September 16, 2025
Chinese polysilicon producer GCL-Tech has entered into a strategic financing agreement with Infini Capital, a globally renowned investment institution backed by a Middle Eastern sovereign wealth fund.
September 11, 2025
US cell manufacturer ES Foundry is proceeding with expansion plans despite a six-month delay due to recent trade and tax credit policy uncertainties.
Premium
September 11, 2025
PV CellTech USA: US cell manufacturer ES Foundry’s CEO Alex Zhu discusses his company's rapid ascent, strategic technology choices and the challenges of operating in a shifting policy environment.
September 9, 2025
The average price of solar modules sold in Europe fell marginally between July and August, while buyers’ confidence remained steady.
September 9, 2025
China has advanced in the integration of AI and new energy, covering areas such as power forecasting, electricity markets, and O&M.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA