johnlocke said:
EV manufacturers are not going to support use of vehicle to grid for home grids. There's no way to control cycling and it would make warranties difficult to manage. How do you tell whether battery degradation was caused by driving or battery cycling in support of your house? how do you administer an 100,000 mi/8 year warranty if the car spends most of it's time charging and discharging on your home grid. It's much simpler to have a dedicated battery on the home grid. The only company that has tried it is Nissan and they have never gotten beyond a pilot project in Japan.
Pilot program? In 2017, it was stated at https://mynissanleaf.com/viewtopic.php?p=504949#p504949 there were 7000 customers w/the Nissan/Nichicon V2H system in Japan.
I'd found a PDF earlier from years before that with numbers in the thousands. Found it at https://www.mynissanleaf.com/viewtopic.php?p=507888#p507888.
I posted about Mitsubishi's Dendo Drive House at https://www.mynissanleaf.com/viewtopic.php?p=571131#p571131 that I saw on display at Tokyo Motor Show 2019. It involved the Mitsubishi Outlander PHEV which has CHAdeMO. And, yes, Nissan owns a controlling stake of Mitsubishi Motors.
On the note of degradation, years back, I saw on one of the Leaf FB groups someone in Japan who had lost 4 bars within their capacity warranty and they mentioned they were using the aforementioned V2H system.
As for the bolded part, there was a side conversation with a Nissan corporate marketing guy I posted about at https://www.mynissanleaf.com/viewtopic.php?p=508329#p508329 in 2017.