Maybe not with the integration with public transit, but in Germany we definitely see that wind is intermittent, and the intermittency is a big strain on the medium-level voltage grid, the 110-kilowatt grid. Often wind turbines have to be shut down because the grid is overloaded. However, there are definitely big research and pilot projects that look into whether there is an opportunity to store that surplus electricity on site, either in terms of batteries or as electricity, or chemically, or in terms of hydrogen, and then link this with the mobility sector. So all the big utilities in Germany are now doing projects together with the big car companies in Germany in order to investigate these opportunities. As well, some smaller companies and experts are trying to integrate locally.
A good option for this is car fleets of companies, such as delivery companies, but I don't know of any experiment in Germany where they try to combine this with public transit. Electrification in Germany is basically...I don't think they electrify any more of the tracks, but of course Germany is much more densely settled, so a lot of that has already been done in the past.