Sure, sorry for my late reply. I stumbled across the second article published by the “Independent” but I also found an older “Guardian” article about it which I’d like to put first for timeline reasons.

https://www.theguardian.com/environment/2018/mar/13/rain-or-shine-new-solar-cell-captures-energy-from-raindrops

https://www.independent.co.uk/tech/solar-panel-electricity-rain-china-b2379404.html

(I really hope my sources are good, bc whilst I have an overview about high and low quality newspaper in German, I’m lacking that overview in English)