Energy Tips, Solar & Renewables
So You’ve Just Bought an EV… Here’s the Truth About Its Environmental Impact
Electric vehicles are globally known for their profound impact on the environment. But, how clean are they?
Important Points
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Transport accounts for over 20% of Australia’s greenhouse gas emissions, and EV adoption is helping to cut this figure.
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As Australia’s grid becomes cleaner with more renewables, the environmental benefits of EVs grow stronger each year.
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EVs emit 40-50% fewer greenhouse gases across their lifecycle compared to petrol and diesel vehicles.
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The average Aussie driver can save around $1,000 per year in fuel and maintenance costs by switching to an EV.
At first glance, electric vehicles (EVs) look like a no-brainer for cleaner air. That’s because they produce zero tailpipe emissions, unlike petrol or diesel cars that release pollutants directly into the atmosphere.¹ In turn, this reduces local air pollution and its harmful health effects in towns and cities.
Yet to get the full picture, we need to zoom out and look at the life cycle environmental impact of an EV – from manufacturing to the future outlook.
Breathing Easier: Why EVs Mean Cleaner Air
One of the most immediate, and arguably most obvious, benefits of switching to an EV is the improvement to local air quality. Traditional petrol and diesel vehicles release harmful pollutants such as nitrogen oxides (NOx) and particulate matter.
These pollutants linger in the air we breathe, worsening conditions like asthma and increasing risks of heart and lung disease. By contrast, EVs produce zero tailpipe emissions, which means every kilometre you drive is one less adding to the pollution burden in your neighbourhood.
This is especially meaningful in cities and densely populated suburbs where traffic congestion is high. Children, the elderly, and those with preexisting health conditions are particularly vulnerable to air pollution. Unlike fuel efficiency improvements in petrol cars, which still release pollutants, EVs cut these emissions completely at the point of use.
Did You Know?
Transport currently accounts for around 21% of Australia’s greenhouse gas emissions, and it’s one of the fastest-growing sources.³
On a national scale, the change is also significant. Each EV that replaces a petrol or diesel car chips away at this figure, helping Australia move closer to its emissions reduction goals. While one vehicle won’t solve the problem, the collective shift is already visible. EVs made up nearly 10% of new car sales in 2024, a sharp rise from just 2% in 2021.²
A Car That Gets Cleaner Over Time
Buying an EV isn’t just an immediate environmental choice, but one that improves over time. That’s because while your car remains the same, the national grid powering it is becoming greener. Right now, fossil fuels still supply a large portion of the country’s electricity. But with government policies targeting 82% renewable generation by 2030, the share of clean energy is growing fast.⁴
What this means for you is pretty straightforward: every year you own your EV, the emissions associated with charging it will drop. When you compare this to petrol and diesel cars, which only get dirtier as they get older, your EV becomes cleaner in practice the longer you drive it. So in essence, this makes owning an EV feel less like a compromise and more like a future-proof investment in environmental sustainability.
The impact isn’t abstract either. In states like South Australia for example, where renewable penetration is already high, EV drivers are charging with some of the cleanest electricity in the world.
Critics often argue that EVs aren’t truly green because of the emissions tied to manufacturing, particularly battery production. But when you look at the full lifecycle – from production, to use, to disposal – EVs still come out ahead. Studies show that EVs emit 40 to 50% fewer greenhouse gases across their lifespan compared to equivalent petrol or diesel models.² The numbers aren’t a fluke either.
The reason is simple: once an EV is on the road, its ongoing emissions are dramatically lower. And as the grid gets cleaner, the gap will essentially widen further. This means that within just a few years of owning an EV, it has already offset the extra emissions from battery manufacturing.
Efficiency That Pays Back to Drivers
Beyond emissions, EVs are simply a more efficient way to travel. Internal combustion engines waste a huge amount of energy, only around 25-30% of the fuel’s energy is converted into movement, with the rest lost as heat. In contrast, electric motors convert more than 75% of the electricity they draw into actual motion.⁵ That’s more than double the efficiency.
This efficiency translates into meaningful cost savings. On average, Aussies can save around $1,000 per year in fuel costs by driving an EV, compared with petrol or diesel cars.⁵ Add in reduced maintenance and the financial case strengthens even further.
For many households, this combination of environmental impact and potential savings is the driving factor behind the decision to purchase.
The Truth About EV Batteries: Long Life and Second Chances
One of the biggest misconceptions about EVs is that their batteries degrade quickly and need costly replacements. In reality, most EV batteries retain 70-80% of their original capacity after 10-15 years of use.⁶ And depending on the owner, they might already be moving on to the dealership for a new car within that timeframe.
Even when an EV battery is no longer ideal for powering a car, it doesn’t have to go to waste. Many can be repurposed for stationary energy storage, helping households and businesses capture renewable energy from solar panels or balance supply during peak demand. This “second life” adds another layer of sustainability to EV adoption.
Read more about Australia’s solar panel recycling.
Author
Benjamin TomBenjamin is a utility specialist passionate about creating informative content about the energy, internet, and solar markets. With extensive experience in the telecommunications industry, Benjamin drives our unique blog posts, articles, and reviews. He is focused on breaking down the technical jargon so our readers can better understand the telco market and industry. Whether he is comparing the latest internet deals or creating unique guides, Benjamin takes great pride in creating helpful, easy-to-read content.
Sources:
Infrastructure.gov.au, Towards Net Zero for Transport and Infrastructure – transport emissions now 21% and rising.
Electric Vehicle Council, 2024 sets new record for EV sales in Australia – EVs reached 9.65% of new car sales.
Climate Action Tracker, Transport emissions represent 19% of total national emissions in 2024.
Australian Government projection—renewables at 82% by 2030.
Energy.gov.au, Electric vehicle facts – EVs are up to 70% cheaper to fuel and 40% cheaper to service.
Green Vehicle Guide, Lifecycle Emissions Explained.
