These five years of back-and-forth cost German taxpayers a lot of money and should have been used to accompany companies in their ecological transition.
There is a common perception in France that the nuclear phase-out led to a hike in CO2 emissions due to an increased use of coal. It is true that CO2 emissions have increased in Germany. However, this is mostly due to industry and transport - not to an increased use of coal. Germany started to develop its renewable energy industry as early as 1999. Unfortunately, these efforts have been undermined and slowed down by governments since 2005. I think Germany could have gone much further in the development of renewables had there been more political will. That being said,Germany is far ahead in terms of investment in renewable energies compared to France.