EVs are dirtier than petrol cars over their lifetime
The reality
EVs produce roughly 50% less CO₂ over their lifetime than petrol cars, even when charged on Australia's coal-heavy grid. The 2024 ICCT lifecycle study — which accounts for battery manufacturing, electricity generation, vehicle production and end-of-life recycling — found that a medium EV in a high-fossil-grid country produces about half the lifetime CO₂ of an equivalent petrol car. In Australia specifically, with the grid currently at around 40% renewables and rising, the gap is even larger.
The "battery factory CO₂" argument is real but limited: yes, building an EV produces more emissions than building a petrol car, mostly from battery cell production. But that one-off "carbon debt" is repaid in the EV's first 1.5–2 years of driving, after which the EV is cleaner every additional kilometre. Over a 250,000 km lifetime, the total saving is enormous.
Australia's grid is also rapidly decarbonising — the AEMO 2024 ISP forecasts 82% renewable electricity by 2030 under the central scenario. Every year an EV is on the road, its lifetime emissions number gets better. A petrol car's gets worse as the car ages and loses efficiency.
Recycling is also no longer hypothetical: companies like Renewable Metals (Perth) and Envirostream (Victoria) are now recycling 95%+ of EV battery materials commercially in Australia.