The energy revolution is one of the biggest challenges of our time. What does the new federal government urgently need to do to ensure a secure and affordable power supply?

Germany is stumbling towards a collapse of the power grid. Large memories would help to avert it. Many could be built a long time ago. But there is a problem.

Battery storage systems are an important component of the energy revolution. So far, their expansion has lagged behind — but the crisis in e-cars of all things could now prove to be a blessing.