What is V1G (unidirectional smart, managed, or controlled charging) and how does this differ from V2X / V2G?

V1G, also known as “managed” or “smart” charging, uses unidirectional charging, which only goes one way – from grid to vehicle.

V1G ensures that EVs are charged when they need to be driven while avoiding excessive charging when electricity rates are high. V1G functions to avoid charging at potentially costly times (as much as possible), but never reverses the flow of energy back from the vehicle’s battery. This means that EVs are always a grid load and do not act as energy storage assets.

Fermata Energy’s V2X system is bidirectional and can do everything that single directional V1G does to manage and optimize charging of an EV battery, with one huge difference: EV fleet owners/operators with V2X bidirectional charging systems can earn revenue from their local utility or actively reduce their electricity bill by sending some of the energy stored in an EV battery back into the grid or building.