Ann: High Efficiency Bi-Directional Platform, page-24

“The bi-directional charger can effectively turn the family electric vehicle into a giant battery for the home during peak times for electricity usage.
“In many cases, having an electric vehicle could make having a home battery unit redundant.”
The executive said a typical household consumes 10-30kWh a day, while an electric vehicle such as the Tesla Model S has a 100kWh battery.
“This means the family vehicle can power the home for a whole day and still have as much as 70 per cent of its battery capacity left, and that’s usually more than enough for travelling to work and picking the kids,” he said.
“We believe bi-directional chargers will be ubiquitous with the electric vehicle industry over the coming years, and we are pleased to be among the first to be developing rectifiers to meet this emerging need.”

this is the quandary : will Tesla only allow Tesla control of battery? Will Nissan Leaf only allow Nissan system? Does using a Rectifier battery management system to use the battery without voiding the warranty? Currently, no vehicle manufacturer allows this. Will RFT get access in this:?

https://electrek.co/2018/11/28/nissan-energy-leaf-vehicle-to-home-building/