---
title: "02:30 ET35.5%! LONGi Once Again Breaks World Record for Crystalline Silicon-Perovskite Tandem Solar Cell Efficiency"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/292862570.md"
description: "LONGi announced that its independently developed crystalline silicon-perovskite tandem solar cell achieved a certified conversion efficiency of 35.5%, setting a new world record. This milestone, verified by ESTI, follows previous records and demonstrates significant R&D progress. The company also reported high efficiencies for larger-area cells and modules, highlighting the technology's industrialization potential and LONGi's commitment to leading clean energy innovation."
datetime: "2026-07-16T06:31:55.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/292862570.md)
  - [en](https://longbridge.com/en/news/292862570.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/292862570.md)
generator: "portal-rs"
---

# 02:30 ET35.5%! LONGi Once Again Breaks World Record for Crystalline Silicon-Perovskite Tandem Solar Cell Efficiency

, /PRNewswire/ -- At the 2026 Solar and Energy Storage Innovation Conference, LONGi officially announced that its independently developed crystalline silicon-perovskite tandem solar cell has achieved a conversion efficiency of 35.5%, certified by the European Solar Test Installation (ESTI), once again setting a new world record.

 Continue Reading  

LONGi officially announced that its independently developed crystalline silicon-perovskite tandem solar cell has achieved a conversion efficiency of 35.5%, certified by the European Solar Test Installation (ESTI) 

Crystalline silicon-perovskite tandem solar cells represent the mainstream technology route for next-generation ultra-high-efficiency solar cells, with a theoretical efficiency limit of up to 43% – far exceeding the Shockley–Queisser limit of 33.7% for single-junction cells. Through sustained technological breakthroughs, LONGi's tandem cell team lifted the efficiency to 33.9% in November 2023 and further to 34.6% in June 2024. In less than a year since then, the team has achieved a series of successive advances, moving from 34.85% to 35.2%, and now to 35.5%, clearly demonstrating the R&D strength and spirit of exploration at LONGi's Central Research Institute.

In May this year, LONGi's independently developed two-terminal crystalline silicon-perovskite tandem cell efficiency (35.2%) was included in the 68th edition of the Solar Cell Efficiency Tables published by the team led by Professor Martin Green at the University of New South Wales, Australia, marking a representative high-level achievement for this technology route at the time. Meanwhile, under conditions closer to industrial-scale dimensions, LONGi achieved conversion efficiencies of 34.3% (261 cm²) and 32.2% (274 cm²), highlighting the promising industrialization prospects of tandem technology. Furthermore, LONGi's tandem modules delivered conversion efficiencies of 31.4% and 29.4%, both independently certified by authoritative international institutions and included in the efficiency tables, further strengthening the foundation for moving crystalline silicon-perovskite tandem technology from the lab to industrial application.

Driven by its leading technological innovation capabilities, LONGi has established a tiered R&D system of "one generation in mass production, one in development, and one in reserve," continuously advancing technological breakthroughs and high-quality development in clean energy. Looking ahead, LONGi will remain focused on technological leadership, delivering iterative breakthroughs to contribute the innovative strength of a Chinese enterprise to the global energy transition.

SOURCE LONGi Green Energy Technology Co., Ltd.

### Related Stocks

- [601012.CN](https://longbridge.com/en/quote/601012.CN.md)

## Related News & Research

- [01:39 ETLONGi Achieves Ninth Consecutive BloombergNEF Tier 1 Recognition, Reinforcing Long-Term Reliability in Energy Storage](https://longbridge.com/en/news/294915295.md)
- [00:10 ETLONGi BC Technology Powers Two World-Leading Solar Racing Teams at the 2026 Elektrek American Solar Challenge](https://longbridge.com/en/news/294149908.md)
- [Fuyao lists a solar sunroof capable of producing 150 watts per square meter](https://longbridge.com/en/news/296744078.md)
- [05:42 ETLONGi: Annual solar plant revenue boosted 67,000 EUR per 10 hectares with new high-efficiency solar panel designed for utility segment](https://longbridge.com/en/news/290542292.md)
- [20:39 ETLONGi Makes S&P Global Energy Premier List of Tier 1 Cleantech Companies 2026](https://longbridge.com/en/news/292689003.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**