Future this future that. The batteries are still expensive now.
expensive bidirectional chargers, software and hardware support in the vehicle
In comparison all those things are negligible in terms of cost. Its already completely standard equipment thats being mass produced.
tens or hundreds of kilowatts of feed-in power
No. This is not required. You can just feed into the grid through a standard wall plug or whatever is used in the US.
This is a well proven method and works exactly like with solar power feed in. The current can be limited to whatever the hardware supports. However if you build charging stations, then these will already be capable of the power levels that you are talking about, so it wouldnt even be an issue.
Future this future that. The batteries are still expensive now.
In comparison all those things are negligible in terms of cost. Its already completely standard equipment thats being mass produced.
No. This is not required. You can just feed into the grid through a standard wall plug or whatever is used in the US. This is a well proven method and works exactly like with solar power feed in. The current can be limited to whatever the hardware supports. However if you build charging stations, then these will already be capable of the power levels that you are talking about, so it wouldnt even be an issue.