Vehicle-to-Home (V2H)

A bidirectional charging mode where the EV battery powers the household, useful for backup during a power cut or for self-consumption optimisation.

V2H (Vehicle-to-Home) uses your EV as a wall-of-house battery. During a power cut, a V2H-capable charger isolates from the grid and feeds your essential loads from the car battery — a 70kWh EV at 60% charge can run a typical Cornwall home for 5-7 days.

Day-to-day, V2H lets you charge the car overnight at cheap rates and discharge it back into the home during peak hours, much like a regular battery but with 5-10x the storage capacity. You do trade some battery cycle life and warranty implications, so always check your car manufacturer's position before signing up.

V2H requires three things: a compatible car (CCS V2L/V2H or CHAdeMO), a bidirectional charger, and an electrical install with proper grid isolation (typically a small consumer unit subpanel for "essential loads"). See our EV charging page or call 01209 596 002 for a V2H survey.