Answering my own question from two months ago (and addressing the part I found missing at the time): ADAC and Tibber are starting to offer a dynamic price contract and selling EV home charging points that can automatically optimise for the dynamic prices - and solar PV. #SmartCharging is an electric car’s best friend.
https://www.heise.de/news/ADAC-vermarktet-dynamischen-Stromtarif-mit-Tibber-9329520.html
🚙 A car is parked 92% of the time.
🚗 A car spends 20% of its driving time looking for parking.
🚙 Its 5 seats only move ø 1.5 people.
🚗 86% of its fuel never reaches the wheels.
🚙 A road at peak throughput is only 10% covered with cars.
Sounds efficient ?