As I've said before there are many studies and trials ongoing in the area of V2G Charging, and its impact on battery life degradation.  This is a very credible trial that shows a very promising outcome, that batteries can be used to 'run' buildings and feed back to the grid, whilst not impacting negatively on car range or battery life.  If we keep getting these validations it makes for a very exciting option in the emobility and decentralised energy revolutions.