Electric Cars: Does it worth to have one?wagnerraugust
To someone who loves cars plus technology, it is interesting to know more about the revolutionary electric cars.
Check below the advantages and disadvantages of having an electric car.
THE MAIN ADVANTAGES OF THE ELECTRIC VEHICLE
Drastic reduction of polluting waste: Even if all the energy used to charge the battery comes from a thermoelectric power plant, less pollutant waste is still generated than if the fossil fuel was burned to move the car. And, if the electricity is from a renewable source (such as hydroelectric and wind), then the advantage is great for the electric car.
Better energy efficiency: the efficiency of combustion engines is only 40%. With the need of the exchange, the energy delivered the wheels is even smaller. Electric motors have more than 90% efficiency. In conjunction with a good inverter (also 90% efficiency), the total efficiency of the set can be 81%.
More pleasant driving: for being quite quiet, the driving of the electric car is quite pleasant. If all the cars of a city were electric, the noise pollution would be much smaller.
Lower cost of maintenance and operation: The current cost of electricity compared to the price of fuel makes the cost of km driven much cheaper with an electric vehicle. The smaller number of moving parts and filtering results in less mechanical wear, making maintenance simpler. The battery is, of course, the weak point of this question. However, in a case of leasing instead of purchase, the cost of operation may increase significantly. But would still be advantageous.
THE MAIN DISADVANTAGES OF THE ELECTRIC VEHICLE
The main disadvantages of electric car are related to the use of a battery, which are:
Low autonomy: it does not store as much energy as a fuel tank. In other words, the battery has lower energy density than the fuel tank. This means that for the same autonomy, the battery volume would be much higher than the tank, greatly increasing the weight of the vehicle and consequently increasing the consumption.
Battery Durability: The best technologies in terms of carrying capacity (lithium batteries) have durability problems. They reduce their carrying capacity over time (at least 10% per year), making it infeasible in 4 or 5 years.
Safety of use: you can not ignore the safety problem brought by batteries. Just search on Youtube for explosion of lithium batteries. You’ll notice how it can be dangerous in case of a strong crash. It is clear that manufacturers have worked on this issue to bring reliability and safety to an acceptable level. But whichever solution, it will inevitably bring more complexity to the system and more weight to the vehicle.
Recharging time: Current battery technologies invariably require slow charging to optimize battery life. In this way, the only way to quickly “refuel” the car would be to change the entire battery. This is a technique used in some European countries. However, more weight will be added to the vehicle to accommodate the battery locking mechanism and furthermore, this mechanism would never be as good as the battery itself being integrated into the vehicle. Moreover, in the case of the integrated battery, it could be used as a structural or vehicle closing element, thus reducing the final weight of the vehicle.
In the end, you are the person who defines whether or not it is worth buying an electric car. If you travel a lot, maybe it’s better to have a gas-powered car. If you drive more through the city and short distances, consider an electric car.
But one thing is certain. With the advancement of technology, soon we will have electric cars of great autonomy that will easily replace the gas-powered cars. It’s only a matter of time!
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