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

September 16, 2025
IB Solar is investing INR30 billion (US$340 million) in a 4GW TOPCon solar cell and module manufacturing plant in Jewar, Uttar Pradesh.
September 15, 2025
Vikram Solar has secured a contract to supply 200MW of modules to AB Energia, a domestic solar engineering, procurement, and construction (EPC) solutions provider. 
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.
Premium
September 4, 2025
PV Talk: Highland Materials' CEO Richard Rast explains how the company aims to compete in the polysilicon landscape through US innovation.
September 3, 2025
Chinese solar manufacturer Trinasolar has signed a patent licence agreement with French module manufacturing startup Holosolis to use its TOPCon solar cell technology.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 16, 2025
Athens, Greece
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