Tuesday, January 14, 2020
Pro and Cons for Electric Car Essay
The most obvious advantage of electric car batteries is that they donÃ¢â¬â¢t produce the pollution associated with internal combustion engines. According to the Electric Vehicle Association of Canada, or EVAC, even EVs recharged from coal-powered electric generators cut carbon emission roughly in half. EVs recharged from cleaner forms of electrical power generation, such as hydropower and nuclear plants, can reduce carbon emissions to less than one percent of those currently produced by internal combustion engines. So, even in the worst case scenario, cars operated by EV batteries are cleaner than gas-powered cars. Another important advantage of battery-powered motors over gas-powered engines is the lower cost of the fuel Ã¢â¬â that is, electricity for EVs and gas for the internal combustion engines. The United States Department of Energy has calculated that a typical EV can run for 43 miles on a dollarÃ¢â¬â¢s worth of electricity. Only a substantial drop in the cost of gasoline could give gas-powered cars anywhere near such a low cost per mile. Yet another advantage of these rechargeable batteries is that they recycle well. Almost 100 percent of these batteries can be recycled, which keeps old batteries from becoming a disposal problem. Electric motors have very few moving parts and donÃ¢â¬â¢t need fluids such as engine oil, anti-freeze or transmission fluid, so they require relatively little maintenance and are far less likely to leak. Excellent reliability means down time is less likely, too. EVs also run far more quietly than their combustion-powered counterparts which enhances worker health and comfort Ã¢â¬â a smart move in an era of rising medical costs. The major disadvantage of battery-powered cars is the time required to recharge the batteries. With lithium-ion battery technology, a fully charged EV can travel a distance comparable to an internal combustion engine vehicle with a full tank of gas, but it still needs to be placed on a recharger at the end of that time. At present, this means a drained EV will be out of service for several hours before itÃ¢â¬â¢s fully recharged. In the future, faster recharging technology may become available, but in the near term, electric cars wonÃ¢â¬â¢t be the vehicles of choice for long trips. Another disadvantage of electric car batteries is their weight. Because they need to do more than traditional car batteries, electric car batteries need to be linked together into arrays, or battery packs, to provide additional power. These collections of batteries are heavy. The lithium-ion battery pack in a Tesla Roadster weighs about 1,000 pounds (453. 6 kg). ThatÃ¢â¬â¢s a lot of weight to carry and it can greatly reduce the carÃ¢â¬â¢s range. However, the designers of the Roadster have offset this battery weight with a light frame and body panels. The entire car only weighs 2,690 pounds (1220. 2 kg) Ã¢â¬â not terribly heavy when you consider that more than a third of that weight is battery. Electric cars are a lot more costly than gasoline powered cars within the same range. The Nissan Leaf clocks in at up to $33,000 and the Volt is estimated at $40,000. Both are outrageous priced for hatchbacks with limited room. What? s more, insurance rates will be estimated to be higher for electric cars than gas powered cars due to the danger of running out of power in a bad spot, its higher cost, and the dangers associated with electricity. Lastly, maintenance costs as a result of new technology and developing skills between mechanics makes electric cars even more of a costly proposition. Electric engines will be forever the gas engine? s ugly cousin, with top speeds maxing out at 70 mph (even less for smaller electric vehicles) which make them a poor bet with highway driving. Out running a car to make a quick lane change is going to be a hard bet. Adding to the aggravation of running out of power on the road, it is very difficult to find plug-in stations when driving an all-electric vehicle. Some parks, stores and rest stops have these charging stations, but the driver must do extensive research to find them. Some stations charge you to use the power source.