September was a big month for EVs and V2G in Australia. Demand for EVs kept breaking records, the BYD Sealion 7 joined our V2G program, and the fleet put its parked batteries to work.
The EV momentum in Australia has been hard to miss. The Electric Vehicle Council's latest State of Electric Vehicles report found a record 157,957 EVs (battery electric and plug-in hybrid) were sold between January and June, up 117% on the same period last year. The Guardian reported that one EV is sold every 100 seconds, with EVs making up one in four new vehicles sold.
There were 612,000 EVs on the road as of June, and the EV Council says Australia is on track to reach 1 million by next year. Every one of those EVs is a battery, and an opportunity on wheels, and this month more of them became eligible to be one. We recently announced that the BYD Sealion 7 has joined our V2G program. It's BYD's top-selling EV in Australia, with more than 30,000 customers since launching in February last year.
What happened across the fleet this month
Across September, the fleet discharged 8,780 kWh from EV batteries, generating $1,605 in value. V2H (vehicle-to-home) supplied 5,096 kWh, powering homes instead of drawing from the grid. V2G (vehicle-to-grid) supplied 3,684 kWh, sending energy back to the grid. The fleet also covered 55,370 km of driving, displacing $10,825 of petrol (at $2.30/L).
The numbers
Fleet
- Fleet size: 64 connected chargers
- Period: September 2026
Energy in, energy out
- Total charged into vehicles: 21,441 kWh. 9,970 kWh came from the grid and 11,471 kWh from home solar and batteries
- Total discharged from vehicles: 8,780 kWh. 5,096 kWh powered homes via V2H and 3,684 kWh was sent back to the grid via V2G
What it means in dollars
- Value returned via V2H and V2G: $1,605. $1,116 came from avoiding grid electricity purchases through V2H (mean 21.9 c/kWh avoided import), and $489 was earned from grid exports via V2G (mean 13.3 c/kWh export credit).
- Cost of charging: $1,552
- Equivalent petrol displaced by driving at $2.30/L: $10,825
Our learnings
V2H and V2G worked side by side
The split was close to even on energy this month. V2H carried 58% of discharged energy and 70% of value, while V2G supplied 42% of energy and 30% of value. Running the house and exporting to the grid each earned their place, and the fleet did plenty of both.
Charging was cheap and mostly solar
September was the first month of spring, and the sun came out to play. 54% of the energy that went into vehicles came from home solar and batteries, so more of the fleet's driving and discharging ran on rooftop solar.
What this means for the average V2X home
Spread across the 64 connected sites, the average home benefited $25 in September from vehicle-based flows alone, with 865 km left over for transport. Putting the picture together for a typical home in September:
- V2H value: ~$17
- V2G value: ~$8
- Total from vehicle-based flows: ~$25
- Driving left over for transport: ~865 km
On the horizon: summer
Spring has only just started, and volatility typically builds from late spring into summer. A wider gap between cheap and expensive periods gives V2X more room to work. Charging gets cheaper, sometimes free, in the middle of the day, and discharging is worth more in the evening, when demand is high and solar has dropped off. With more EVs on the road and more drivers able to join the program, we're looking forward to seeing what the warmer months bring.
Got an eligible EV sitting in your driveway doing nothing but holding charge? With the Sealion 7 now in the program, more drivers can join. Eligible Sealion 7 owners get their battery covered under BYD's warranty support, and Amber V2G participants can get 6% off the base RRP on an eligible Atto 3 or Sealion 7.
Join our waitlist to find out when V2X may be available for your home, or learn more about our V2X offering.
