Hamburg the city is currently funding a fairly interesting research project. The problem here is that solar + wind at times overproduces, and we have no grid sc

Hamburg the city is currently funding a fairly interesting research project. The problem here is that solar + wind at times overproduces, and we have no grid scale energy storage to keep that power. So, a short-term idea is to equip most larger garages with EV chargers and to include a central control unit for these chargers. This way, the grid can bring the EVs to 40% - 60% charge slowly during off-hours, or dump as much power into the EVs as possible if the alternative was to shut down solar plants or wind turbines. And additionally, centralizing the power usage simplifies transmission issues for now. It's much easier to have a few big cables to a few big buildings, than having every single home pulling a lot of power all of a sudden.