Sorry, for an obvious question to those who will answer, but does Germany not have energy interconnects with neighboring countries or do all those countries face the same issue of excess capacity?
Currently, Germany is averaging around 6.4 GW of imports and 3.2 GW of exports. During production spikes caused by e.g. wind or solar power, the price quickly drops in the whole region, sometimes into the negative in order to help stabilize the grid frequency.