“We would have been able to distribute 35,000 litres per hour of water around the vineyard,” he said.
Using an EV in this way — as a mini, mobile power source — relies on a feature known as vehicle-to-load (V2L), which is built into several of the current generation of EVs.
But advocates have more ambitious aims in mind, including using car batteries to power homes.
What’s the cost and what’s the gain?
In the two-and-a-half years since fire destroyed Mr Tilbrook’s vineyard, his Tilbrook Estate winery has rebuilt and rebounded, and heavily relies on solar panels to power its cellar-door facility.
“At the moment, we’re sort of tossing up whether we get a battery,” Mr Tilbrook said.
“In an emergency, you could use it to power the cellar door so it could keep functioning during a power outage.”
‘Bi-directional charging’ is a concept that comes with its own vocabulary: V2G, or vehicle-to-grid, refers to an EV that can export energy to the grid.
V2H, or vehicle-to-home, refers to EVs that can be used to supply homes.
“We’re starting to see some trials now where the car powers [a] house,” RAA automotive policy senior manager Mark Borlace said.
“The battery in an EV is between three and five times the size of a general house battery, so the house and the car will be — from a power point of view — a combined unit.”
ABC Radio Adelaide’s Sonya Feldhoff chats with automotive experts about the state of EV technology.
Australia is currently in the grip of high fuel and energy prices, so it might come as little surprise that a recent survey of South Australian drivers recently found growing levels of enthusiasm for EVs.
“The major things motivating them are the increasing cost of fuel and greater awareness of the environment.”
Notwithstanding this, the up-front cost remains a deterrent.
“There are more electric vehicles coming onto the market and more choice, and with that choice there are lower-priced vehicles being introduced,” motoring journalist Toby Hagon told ABC Radio Adelaide’s Sonya Feldhoff.
“But they’re typically still 20 to 25 per cent more [in cost] than their comparable internal combustion engine vehicles.”
‘Starting to become a no-brainer’
If cost is an obstacle, so is obsolescence.
Technology is evolving at such a pace that some prospective buyers might be put off by the thought that the EVs of tomorrow will be significantly better than those of today.
“There are things like electric utes [that are] available globally that aren’t available here yet, so there’s a bit of work for Australia to do in the catching-up space,” Electric Vehicle Council chief executive Behyad Jafari said.
“You’ll certainly see more models coming at cheaper prices.
“Just a few years ago, electric vehicles would come to our market and they’d be priced at over $100,000. Now the newest ones … are around $40,000.”
Techno-scepticism has also perhaps acted as a roadblock of sorts.
The present doesn’t always live up to the past’s expectations of it, and history is littered with the debris of discarded futures — flying cars were once thought to be something that humans could look forward to.
But, unlike flying cars, EVs don’t belong to the world of The Jetsons.
Mr Tilbrook might still be working through his options, but he is convinced widespread EV uptake is an inevitability.
“It’s starting to become a no-brainer,” he said.
“With this fuel or energy crisis at the moment, it’s going to make people sit up and think. It’s making me sit up and think.”
Extracted in full form: Electric vehicle batteries have applications beyond the cars that carry them, advocates say – ABC News