LONGi toasts new p-type TOPCon and commercial heterojunction cell efficiency records

Facebook
Twitter
LinkedIn
Reddit
Email
Cell production at a LONGi facility. Image: LONGi.

Solar cell efficiency records have continued to fall after LONGi toasted breakthroughs in both high-efficiency p-type solar cells and commercial heterojunction (HJ) cells.

LONGi revealed today that its Cell R&D Center had achieved a new record cell efficiency of a p-type monocrystalline bifacial TOPCon solar cell of 25.02%, the first time a p-type cell had recorded a conversion efficiency in excess of 25%.

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 record was validated by the Institute for Solar Energy Research (ISFH) in Hamelin, Germany, which also confirmed LONGi’s record for its commercial-sized monocrystalline HJ solar cell produced by LONGi’s New Technology R&D Center.

The HJ solar cell reached a conversion efficiency of 25.26% during testing, a performance which LONGi said placed it “at the forefront of HJT-related technology”.

Meanwhile the solar cell and module manufacturer also celebrated sizeable gains in the conversion efficiency of its n-type TOPCon solar cell, which rose from the 25.09% recorded in April to 25.21%. It does, however, fall just short of the 25.25% conversion efficiency recorded by JinkoSolar and revealed yesterday.

“With the ambitious goals we have set for ourselves, our approach is to stay close to the essence of technology by selecting the best technical route, maximizing product performance potential and proactively ushering in the changes needed to achieve the technical transformation,” Li Hua, vice president and head of LONGi’s Cell R&D Center, said.

Read Next

Premium
October 6, 2025
Talon PV aims to be the first US company to safely manufacture TOPCon cells at scale, backed by European technology and a crucial First Solar licensing deal.
September 29, 2025
Fortescue has established a strategic partnership with Chinese solar manufacturing giant LONGi to supply solar PV modules as part of its ‘Real Zero’ emissions by 2030 strategy.
Premium
September 25, 2025
An anticipated uptick in US cell manufacturing presents opportunities for European PV tool producers, says RENA Technologies’ Michael Vees.
September 25, 2025
Inox Solar has started the first phase of commercial operations at a module manufacturing plant in Bavla, India.
September 23, 2025
JinkoSolar and LONGi Green Energy have agreed to terminate ongoing patent lawsuits, and enter into a 'cross-licensing agreement'/
September 22, 2025
Kiwa PI Berlin examines the importance of doing cell-level diligence to manage quality of n-type modules such as TOPCon and HJT.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
October 7, 2025
Manila, Philippines
Solar Media Events
October 7, 2025
San Francisco Bay Area, USA
Solar Media Events
October 21, 2025
New York, USA
Solar Media Events
November 25, 2025
Warsaw, Poland