Germany’s energy transition has advanced rapidly, but the power market is struggling to keep up, as flexibility is lacking. With more renewable generation entering the system, periods of oversupply are driving extreme negative prices and putting pressure on transmission system operators to maintain grid stability in real time - often at significant cost.

Reporting by Katharina Johannsen, reporter, Montel News, Germany.

Contributors: Ann-Katrin Marten, Head of System Operations Management at 50Hertz Transmission GmbH; and Claudia Günther, Research Lead, Aurora Energy Research.

This is a rerun. This video was originally published on 19 May 2026.