How to “reimburse” your experience

It actually takes a while before reaching this “equivalence point”, as it is called. Similarly, And according to the criterion chosen, it can even never happen, as we will see.

It is that the machining of an electric car is more polluting than that of a petrol vehicle. Moreover. However, mainly because of the huge battery of the vés and large amounts of minerals that must be extracted to make them. In addition, According to figures from the International Energy Agency (AIE). Consequently, assembling a petrol car emits the equivalent of around 6 tonnes of CO2. In addition, In the case of Vés. However, the manufacture of the battery brings these emissions up to 8, or even almost 10 tonnes in how “reimburse” your experience new some cases.

However. Nevertheless. However, as this initial surplus is an “expenditure” of energy which occurs only once how “reimburse” your experience – unlike gasoline, which must be burned continuously with a “conventional” vehicle -, the lives eventually end up catching up. Similarly, At the end of the track. Moreover. Therefore, the same AIE document cited above indicates that at the end of the useful life of a car, total emissions (manufacturing and combined use) of greenhouse gases of those which are mue by electricity are lower by around 65 to 70 % on average.

This varies a lot according to the way of producing electricity. but. even in a scenario of the worst where the current comes from coal -fired power plants, the experiences remain preferable because they are much more effective.

In an explosion engine. only 12 to 30 % of fuel energy is transformed into movement. the rest being lost in vibrations, friction and heat, while electric cars convert around 75 % of their movement in motion.

And of course. in a case like that of Quebec. where almost all electricity comes from renewable sources, the balance sheet is even more how “reimburse” your experience new favorable. So how far should we travel before an electric car becomes “profitable” from the point of view how “reimburse”. your experience of GHGs?

How "reimburse" your experience new – How "reimburse" your experience new

How &quot. reimburse&quot. your experience – How "reimburse" your experience – How "reimburse" your experience new

Rapid improvement

In 2016, the International Reference Center for Life Cycle Analysis (Ciraig, affiliated to the École Polytechnique) published an analysis funded by Hydro-Québec which concluded that the “equivalence point” was 29,000 km in a place like Quebec, where almost all electricity comes from dams. But it is certain that it is much less than that in 2025. because the types of batteries used and the manufacturing processes have evolved a lot since.

For example. one of the studies on which Ciraig was based. dating from 2013, indicated that the manufacture of the battery of Vé caused the equivalent of 173 kg of GHG per kilowatt (kg/kWh) how “reimburse” your experience new of capacity. However. a European study later estimated that. from 2020, this “environmental cost” had already descended between 41 and 89 kg/kWh, and that it should be in the range how “reimburse” your experience of 10-45 kg/kWh in 2030.

In short. the figure of 29. 000 km before having “reimbursed” GHG emissions from the manufacture of the battery is no longer up to date – which is quite normal for a report which dates from almost 10 years and which focused on a technology that changes very quickly.

To know very exactly the distance to be traveled before reaching the equivalence point in the specific context of Quebec. a new life cycle analysis should be started again, which is completely out of reach for a chronicle like this. But let’s just say that it must revolve around 20,000 km these days.

Other pollution

That said. however. it should be added here that GHGs are not the only pollution measure used-producing cars has consequences on the environment that go beyond CO2.

Most of these other how “reimburse” your experience indicators are leaning on the side of electric vehicles. but. from the point of view of the exhaustion of resources, the imprint of experiences is greater than those of petrol cars, even after 200,000 or 300,000 km of driving, because of the large amounts of minerals that enter their batteries.

There is also a vagueness around the impacts on human health. Ciraig’s life cycle analysis concluded that experiences have a positive effect on health because. roughly speaking, if you burn less petrol, air will be less polluted, particularly in town. But two literature journals on the issue have concluded that experiences have greater “toxicity” because of the metals of. the how “reimburse” your experience new battery (several of which are. in theory at least, actually toxic).

* * * * *

Are you asking yourself questions about the world around you? Whether they concern physics. biology or any other how “reimburse” your experience discipline, our journalist will be happy to answer them. In our eyes, there is no “silly question”, no “too small” question to be interesting! So write to us at: [email protected].