I accept that but for the moment there is no centrally organised way to do this, car charges have timers and the like built in for sure, but that is asking a lot to expect everyone to set it. The majority of people will come home and plug in. This should be easy to fix but it is another thing which needs to be rolled out and working in the next 10 years.

Flat rate electricity prices over the day aren't sustainable anyway with the transition to renewables, price signaling is coming.

In Germany, if you have a heat pump you can get special discounted rates if you let the utilities company switch off the pump for some time during peak demand. The same scheme could immediately be used for electric car charging. Actually I expect the utilities to be a big pusher for charging infrastructure, which is then controlled to even stabilize the grid.

I think you missed this:

> This should be easy to fix but it is another thing which needs to be rolled out and working in the next 10 years.

This isn't exactly a new idea though. This has been done in the past in the UK (https://en.wikipedia.org/wiki/Storage_heater). And rollout of smart meters is already in progress.