In 2021, the Grohnde nuclear power plant in Lower Saxony on the Weser River was shut down. Now, immediately next to it, the Emmerthal energy cluster is growing with three very large battery storage systems, ground-mounted photovoltaic systems, and a new substation for several 380-kilovolt high-voltage lines.
What would also be great: Solar power produces a surplus of energy on summer days, and summers are becoming hotter. One can use seasonal heat storage and bidirectinal heat pumps to cool buildings and store that heat, and use it to heat homes in the winter. Seasonal storage turned out to work well.