Chinas nächste Solar-Revolution? DAS hab ich nicht kommen sehen!

In China, kesterite solar cells are setting one efficiency record after another – but is this truly the beginning of a new solar technology? We examine why this thin-film cell was considered a failure for so long, what progress is now being made, and why China is becoming strategically important in this area. Not a miracle cell, not hype – but an open bet on the next generation of photovoltaics. If you find my analyses helpful and would like to support the channel, here are the options: YouTube channel membership:    / @_ingenieurskunst   One-time donation via PayPal: https://paypal.me/SauterPatrick Patreon (Become a member):   / ingenieurskunst   More background information, figures & sources, plus context for energy policy – ​​free in the Ingenieurskunst newsletter: https://ingenieurskunst.tv/ Sources: [1] https://www.helmholtz-berlin.de/pubbi... [2] https://www.sciencedirect.com/science... [3] https://research.ibm.com/publications... [3b] https://advanced.onlinelibrary.wiley.... [4] https://ideas.repec.org/a/nat/natene/... [5] https://www.nature.com/articles/s4156... [5b] https://www.nature.com/articles/s4156... [6] https://english.iop.cas.cn/rh/rp/2026... [7] https://www.nlr.gov/pv/cell-efficiency [8] https://www.iea.org/reports/solar-pv-... [9] https://www.pv-magazine.com/2025/09/1... [10] https://www.uu.se/en/press/press-rele... [11] https://www.longi.com/us/news/longi-w... [12] https://www.longi.com/en/news/silicon... [13] https://www.nature.com/articles/s4152... Image and video sources: [B1] https://de.wikipedia.org/wiki/Datei:K... [B2] https://de.wikipedia.org/wiki/Datei:K...