An aircraft weighing more than 11 tonnes has flown entirely on batteries. On the ground, Australian transport fleets are showing why electrification is also becoming a supply-chain security issue.
Heart Aerospace’s X1 demonstrator has completed its first flight, providing a striking measure of how far battery-electric propulsion technology has advanced.
The aircraft flew for 27 minutes from Plattsburgh International Airport in upstate New York on August 12, reaching 1,100 feet while its all-electric propulsion system delivered more than one megawatt of power.
With a wingspan of 32 metres and a take-off weight exceeding 11 tonnes, the X1 is described by Heart as the largest battery-electric aircraft yet flown.
Heart says the electricity consumed during the flight cost approximately US$5—equivalent to roughly A$7 at the time of publication.
That is the company’s estimate of the electricity used, not the total cost of completing the flight. It excludes the aircraft and batteries, charging infrastructure, maintenance, crew, airport operations and other expenses.
The X1 is also a technology demonstrator rather than an aircraft about to begin carrying paying passengers. It was built to test technology, aerodynamics and flight performance for Heart’s planned 30-seat ES-30 hybrid-electric regional aircraft.
Nevertheless, its first flight illustrates the growing scale at which battery-electric systems can operate.
From postie rounds to prime movers
On the ground, electric transport has already moved beyond prototypes in suitable freight applications.
The remaining questions increasingly involve purchase price, battery weight, charging infrastructure and matching each vehicle to the right route and workload—not whether an electric motor can move a commercial vehicle.
Australia Post provides one of the clearest demonstrations of fleet scale.
The organisation operates more than 5,100 electric vehicles, including delivery vehicles, bikes and trucks. Together, they travel more than 29 million kilometres each year.
Australia Post is now preparing to extend electrification beyond last-mile delivery into the heavier vans and trucks that move parcels and freight between facilities. It specifically identifies reducing its reliance on diesel as one of the benefits.
Team Global Express shows how the technology can be applied across a sizeable metropolitan truck fleet.
Its Bungarribee operation in Western Sydney uses 60 battery-electric trucks—36 Volvo FLs and 24 Fuso eCanters—to move parcels between its distribution centre and residential and commercial customers.
The vehicles are classified as light and medium rigids and operate on a back-to-base model, allowing them to return to the depot for scheduled charging. The facility combines charging infrastructure with onsite solar generation and battery storage.
While Team Global Express has more electric trucks, Toll Group is taking battery power into heavier freight tasks.
Toll’s program comprises 28 battery-electric trucks and 31 charging points across 10 sites.
The vehicles include 18 Volvo FE electric rigids rated at 23 tonnes GVM and 10 Volvo FM electric prime movers rated at 44 tonnes GVM. They are being integrated into customer supply chains involving beverages, steel, groceries and energy rather than confined to closed demonstration routes.
Together, the two programs demonstrate different kinds of scale: Team Global Express across a metropolitan parcel fleet and Toll in heavier contracted freight.
Centurion Transport provides an additional glimpse of what greater transport-energy independence could look like.
Its Hazelmere operation in Western Australia uses 30 Mercedes-Benz eActros electric trucks supported by an off-grid energy system incorporating approximately 4.3 megawatts of rooftop solar generation and 10.3 megawatt-hours of battery storage.
The microgrid includes backup generation capable of using hydrotreated vegetable oil, while the project reports that the trucks are charged using onsite renewable energy.
This allows most of the energy needed to operate the fleet to be generated and stored at the depot rather than arriving through an international fossil-fuel supply chain.
More than an emissions question
This matters because Australia remains heavily dependent on liquid fuels to keep essential supply chains moving.
The Australian Government says the country uses more energy from diesel alone than from electricity. Diesel supports transport, agriculture, mining, emergency services, hospitals and electricity generation in remote communities.
That does not mean Australia is about to run out of diesel. It means reducing dependence on one internationally traded energy source can make the freight system more resilient to global price shocks and supply disruptions.
Electric vehicles do not remove every vulnerability. Trucks, batteries, replacement parts, charging equipment and electricity networks all have their own supply chains.
Battery-electric trucks will also not replace every diesel vehicle or long-distance combination in the immediate future. Australia’s distances, payload requirements and limited heavy-vehicle charging network remain substantial barriers.
But every suitable delivery, metropolitan or depot-based freight task shifted onto locally generated electricity reduces demand for fossil diesel. It also helps preserve liquid fuel for remote, long-distance and emergency operations where alternatives remain limited.
The electric aircraft provides the spectacle. Australia’s road fleets may deliver the practical energy-security benefit first.