Vehicle-to-Grid

What V2G actually means

Vehicle-to-Grid takes the bidirectional concept further than V2H. Instead of discharging the EV battery into your own home only, V2G exports power to the electricity grid - flowing back through the meter in the same way a solar or home battery system can export.

The promise is that millions of EV batteries sitting idle for 20+ hours a day become a distributed energy resource: charging when power is cheap or solar is abundant, discharging when grid demand is high and prices spike.

The current state in Australia (2026)

V2G is real but small-scale in Australia. ARENA (Australian Renewable Energy Agency) has funded multiple V2G trials - the largest involved Nissan Leafs managed by a fleet operator, discharging during peak periods under a virtual power plant arrangement.

Commercial V2G for individual homeowners is emerging through partnerships between energy retailers and EV owners, primarily in South Australia and Victoria where grid services markets are more developed. The economics are improving but still require a compatible vehicle, a certified bidirectional charger, a compatible energy retailer, and network approval in your distribution zone.

How you’d earn from V2G

The mechanism is similar to a home battery VPP (Virtual Power Plant) agreement:

• You agree to make a portion of your EV battery available for export when called upon
• The energy retailer or aggregator dispatches the battery remotely during peak demand events or frequency response services
• You receive payment either per kWh exported, per event, or as a flat annual fee

Typical estimates from Australian trials suggest annual earnings of $500–$1,500 depending on battery size, availability, and the frequency of dispatch events. That’s meaningful but not transformational, and it comes with the trade-off of additional battery cycling.

Connector standards for V2G

Most V2G capability in Australia to date has been through CHAdeMO bidirectional charging (Nissan Leaf). AC bidirectional V2G via Type 2 is the industry’s target direction - it would allow V2G without dedicated DC infrastructure and is supported by standards being developed under IEC 61851-24 and the emerging V2G standard for CCS2.

Several vehicles due for Australia in 2026–2027 claim V2G readiness, including the Nissan Ariya and upcoming Kia models, but commercial V2G deployments at residential scale remain ahead of the curve for most owners.

V2G vs V2H vs V2L - the short version

• V2L: Powers appliances directly. No infrastructure needed beyond an adaptor. Works now, on many current EVs.
• V2H: Powers your whole home during outages. Requires a certified V2H inverter. Limited to CHAdeMO vehicles in Australia right now.
• V2G: Exports to the grid for payment. Requires certified bidirectional charger, compatible vehicle, network approval, and retailer agreement. Commercially available in limited markets; watch this space.