Emanuel Boeminghaus wrote that the German battery storage manufacturer Sonnen filed for bankruptcy on October 22, 2026. He pointed to a decline in revenue from 443 million euros in 2023 to 198.9 million euros in 2024, as well as a negative EBITDA of 188.7 million euros. For 2025, he estimated the operating loss at 52.2 million euros. Around 400 employees at the Wildpoldsried site were informed about the bankruptcy application; at the beginning of 2026, Sonnen still employed a total of 800 employees, down from 1,318 previously. Boeminghaus noted that Shell acquired Sonnen in 2019 for just under 500 million euros and then invested more than half a billion euros. In August 2026, Shell sold the company to Tiven. Two months later, the bankruptcy followed, according to Boeminghaus. He also mentioned that Chinese competitors were gaining market share while the US business was to remain largely intact. Boeminghaus described Sonnen as a German technology pioneer and viewed the case as a failure of the energy transition. He cited Handelsblatt from October 22, 2026, as the source. https://t.co/c1iEyGLijQ #Insolvenz #Energiewende #Batteriespeicher (translated)