Electrical cars: less dissipation, more sustainability
Everything changes with electric cars. A thermal motor wastes most of the heat it generates. As we’ve seen, this wasted part is what provides the heat in a petrol car.
However, an electric car strives not to waste anything. For that reason, if you turn on the heat, (in the case of electric cars) the consumption of energy will go up considerably.
Thus, we're talking about a paradigm shift. By driving a petrol car, you are wasting every metre you travel... and a side effect of this is that you can obtain heating based on that waste. But it is false to say that heating is free. It comes from the petrol that you're wasting.
By commuting in an electric car, everything is more controlled. When the car stops, energy consumption stops as well. Unless you need to use the lights, radio, or heating and air conditioning. The idea here is to always consume as little as possible, striving for zero waste.
If you drive an electric car and you need air conditioning or heat, the energy necessary will be extracted directly from the traction battery. You’ll have your cold/heat, but in turn, the autonomy of the vehicle will be reduced. How much? In normal conditions, it is around 10% or 20%.
To solve it, manufacturers are already implementing in their electric models, a small heat pump. This invention that is so common in homes and offices is thus carving out its niche in the future of driving by guaranteeing the maximum performance in any weather condition.