This “red-green” coalition banned new reactors, announced a shutdown of existing ones by 2022
The red-green coalition did not announce the 2022 date. They (Greens/SPD) announced a soft phase-out between 2015-2020 in conjunction with building renewables. This planned shift from nuclear to renewables was reverted by Merkel (CDU = conservatives) in 2010. They (CDU) changed their mind one year later in 2011 and announced the 2022 date; but without the emphasis on replacing it with renewables. This back and forth was also quite the expensive mistake by the CDU on multiple levels, because energy corporations were now entitled financial compensation for their old reactors.