Jolywood’s testing lab awarded CTF status by TÜV Nord as it pushes n-type PV module development

June 28, 2020
Facebook
Twitter
LinkedIn
Reddit
Email
Liu Zhifeng, vice general manager of Jolywood’s Taizhou facility said, “Jolywood Solar has always focused on research & development of n-type solar technology, and this CTF award by TÜV Nord means a great deal in establishing a uniform industry standard and enabling further research into n-type bifacial products. Image: Jolywood

China-based PV backsheet and high-efficiency PV manufacturer Jolywood (Suzhou) Sunwatt Co has been awarded Customer Testing Facility (CTF) status by TÜV Nord Group.

Jolywood has been heavily focused on developing and ramping its n-type TOPCon (Tunnel Oxide Passivated Contact) cell-based PV modules over the last 18 months and made a conversion efficiency breakthrough of 23.5% in April 2020. As a production ready process, Jolywood used n-type 158.75mm x 158.75 (G1) silicon wafers to achieve the record conversion efficiency.

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

Liu Zhifeng, vice general manager of Jolywood’s Taizhou facility said, “Jolywood Solar has always focused on research & development of n-type solar technology, and this CTF award by TÜV Nord means a great deal in establishing a uniform industry standard and enabling further research into n-type bifacial products. Also, the lab’s acceptance as a third party testing facility will provide more professional data support on the degradation and temperature co-efficiency advantages of Jolywood n-type modules.”

Xu Tingting, vice president of TUV Nord renewable energy added, “The CTF award means Jolywood’s laboratory has been audited and fully recognized by TUV NORD; it also means the Jolywood lab has excellent management and professional testing ability. We believe Jolywood will, through its continuous efforts, bring more creative products and advanced technology to the market.” 

Jolywood's R&D expenditure in 2019 was around US$17.2 million, an increase of 9.56%, year-on-year, and accounted for 3.5% of total revenue, according to PV Tech’s analysis.  

13 October 2026
San Francisco Bay Area, USA
PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 13-14 October 2026 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023, 2024 and 2025 were a sell out success and 2026 will once again 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 in the U.S. out to 2030 and beyond.

Read Next

January 21, 2026
LONGi Green, Tongwei, JA Solar, TCL Zhonghuan and Aiko Solar are projecting a combined 2025 deficit of RMB28.9-32.8 billion (US$4.1-4.7 billion).
January 20, 2026
INDIA ROUND-UP: Hartek Power, Waaree Energies, Kosol Energie and IREDA secured major solar and renewable energy deals, including EPC contracts, multi-gigawatt module orders, multi-billion-dollar investments, and international project financing.
January 19, 2026
Egyptian manufacturing firm Kemet has signed a deal with Chinese solar manufacturer GCL Technologies to build a 5GW solar cell and module manufacturing hub in the country.
January 19, 2026
Chinese polysilicon producer Daqo New Energy recorded over RMB1 billion in losses in 2025, roughly halving its losses compared with 2024.
January 19, 2026
Last week, the Chinese Ministry of Commerce (MoC) issued its final review ruling regarding anti-dumping measures on solar-grade polysilicon originating in the US and South Korea.
January 19, 2026
Chinese wafer producer TCL Zhonghuan is planning to take a controlling stake in cell and module manufacturer DAS Solar to strengthen its vertical integration.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA