It’ll move energy use from highly inefficient personal vehicles burning gasoline to highly efficient trains using mostly renewable electricity, during the summer where more than enough electricity is available.
As is common in coalition governments, the 9-Euro-Ticket is a pet project of the greens to save energy and save people money, while the gas taxes are a pet project of the neoliberals to save people money :)
In both of these cases, the energy per person-kilometer of transportation is orders of magnitudes lower than with an ICE car. So the energy usage would still go down
40% ~ 400MW of this coal plant go directly to DB. They argue that it’s only used for freight and not for public transport but meh - a useless differentiation IMO.