The contribution of fluctuating wind and solar energy sources to the German electrical energy demand has increased from 12% up to 40% within the last 10 years and leads to higher infrastructure requirements due to the different spatiotemporal characteristics of wind and solar energy generation....

As Russia’s invasion of Ukraine continues, more and more people are calling for a ban on Russian energy imports. The proponents argue that abstaining from importing billions worth of coal, oil and gas will further increase the pressure on the Kremlin. Critics, however, including German...