Wholesale prices were relatively calm in August, and the fleet's numbers show what V2X looks like on a quiet month. There were no big price spikes to chase, and most of the value came from something less dramatic: customers running their homes on stored EV energy instead of drawing from the grid.
Value from discharge grew across the board, with V2G up 14% on July. This month we're also adding a new piece to the picture - the value of the driving itself, alongside the usual V2H and V2G numbers.
Today, 9 September, is also World EV Day, the global campaign that started in 2020 to promote the switch to electric transport, and it lands on the back of a record month for EVs. Battery electric vehicles outsold petrol-only cars in Australia for the first time in August, 27,078 to 25,824, and also outsold diesel-only cars, according to FCAI and Electric Vehicle Council data reported this month. Electrified vehicles, including hybrids and plug-ins, made up 51.8% of the new-car market for the month.
Every one of those new EVs is a battery on wheels. Parked and plugged in on a standard setup, that battery just sits there holding charge until the next trip. The fleet's numbers this month show what happens instead when it's connected to V2X: charging cheap, powering the house, exporting when prices spike. As more EVs land on driveways, the pool of batteries that could be doing that only gets bigger.
What happened across the fleet this month
Across August, the fleet discharged 8,526 kWh from EV batteries, generating $2,158 in value. Most of that came from vehicle-to-home (V2H), where stored EV energy powers the house instead of drawing from the grid. The rest came from vehicle-to-grid (V2G), exporting energy back to the grid at wholesale prices.
The numbers
- Fleet size: 64 connected chargers
- Period: August 2026
Energy in, energy out
- Total charged into vehicles: 20,284 kWh. Of that, 11,669 kWh came from the grid and 8,615 kWh from home solar and batteries.
- Total discharged from vehicles: 8,526 kWh. This is the energy that flowed back out of EV batteries for useful purposes. 6,382 kWh powered homes via V2H, and 2,144 kWh was sent back to the grid via V2G.
What it means in dollars
- Value returned via V2H and V2G: $2,158. $1,855 came from avoiding grid electricity purchases through V2H (29.1 c/kWh avoided import), and $303 was earned from grid exports via V2G (14.2 c/kWh export credit).
Our learnings
V2H did even more of the heavy lifting
V2H carried 75% of discharged energy but 86% of total value this month, up from 68% and 77% in July. Powering the house directly is worth more per kWh than exporting it at the moment, and that gap widened in August.
Cheap charging is half the equation
The fleet charged 20,284 kWh in August at an average cost of just 10.5 c/kWh, with 42% of that energy coming from home solar and batteries rather than the grid. Charging at 10.5c and discharging at an average value of 25.3c is what drives every other number in this update. Fill the battery when energy is cheap or free, then run the house or export when it's expensive.
A quieter month for exports
V2G earned $303 in August against $430 in July, with no single event on the scale of the 30 July spike. Export value is lumpy. It concentrates into a handful of evenings each season, and the fleet's job is to be plugged in and ready when they land.
What this means for the average V2X home
Spread across the 64 connected sites, the average home benefited $34 in August from vehicle-based flows alone, roughly $29 from V2H and $5 from V2G, all from energy that would otherwise have sat unused.
The discharge numbers only tell part of the story, though, because most of the energy going into these batteries isn't discharged at all. It's driven. If we assume the energy that didn't flow back to homes or the grid went into transport, the fleet covered roughly 51,100 km in August, about 800 km per home, displacing around $8,470 of petrol across the fleet.
Putting the whole picture together for a typical home in August:
- Petrol avoided*: ~$132
- V2H and V2G value: ~$34
- Less charging costs, battery wear and conversion losses: ~$50
- Net benefit: ~$116 for the month
*Based on an EV using 18.5 kWh/100km, compared against a petrol car at 8.5 L/100km with petrol at $1.95/L.
On the horizon: spring
Spring historically brings higher levels of negative daytime prices as rooftop solar floods a low-demand grid, alongside tighter evening periods as large generators come offline for shoulder-season maintenance. Genuine volatility typically builds from late spring into summer. That wider gap between cheap and expensive periods means more room for V2X to work. Charging is cheaper, sometimes free, in the middle of the day. Discharging is more valuable when the evening gets tight. August's 86/14 split between V2H and V2G is probably the high-water mark for V2H's share this year. We expect exports to claw back ground as spring volatility arrives.
Got an EV sitting on your driveway doing nothing but holding charge? Join our waitlist to find out when V2X may be available for your home.
