Wednesday, November 4, 2026Updated every morning at 5:30 AM ET
NanotechProgress

LONGi Green Energy

A Chinese solar panel maker; reported a 35.5% efficient silicon-perovskite tandem cell in July 2026.

PV Tech, 16 July 2026

Prices by TradingView, about 15 minutes delayed. Not investment advice.

Ticker
601012 · SSE
Based in
China
Website
longi.com ↗

How nano is it?

No filing of theirs says yet

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On the record

Latest steps

The newest dated events on the technologies above.

  1. Working prototype

    Tandem solar

    A LONGi tandem cell reached 35.5% efficiency, a world record, certified by the European Solar Test Installation.

    PV Tech, 16 July 2026
  2. On saleCompany-reported

    Tandem solar

    Oxford PV shipped its first commercial tandem panels, with 24.5% module efficiency, to a customer in the US.

    Oxford PV, 5 Sept 2024

Not investment advice. We describe what companies do and what their own filings say; we never say whether to buy or sell.