best electric mileage cars image
Cody
How much better are electric cars For the environment? What advantages do they do for it?
Answer
If the entire US fleet of vehicles were electric they would require at most 30% of the electricity we presently use. However about 86% of those vehicles could be charged at night (off peak) with no additional generating equipment because we have at least that much excess capacity at night.
At the same time we would be saving about 6 kWh to 8kWh of energy (electricity and some other fuel sources) used to refine oil into each gallon of gasoline. The average electric car can go further on this much energy than the average petrol vehicle can go using the refined product.
We could easily run US vehicles on existing energy sources without the pollution of Oil.
And it is not just air pollution. Many will recall the months that it took to cap the BP oil well in the Gulf. Slightly more than 200 million gallons spilled in the worst ever ecological disaster? No Every year more than 200 million gallons of lubricating oil is drained from cars and improperly disposed of in the environment. Every Year. Petrol cars pollute more than just the air. Electric cars don't use lubricating fluids that need to be drained. http://www.epa.gov/osw/conserve/materials/usedoil/oil.htm
Are you worried about US economic health? The trade deficit attributed to imported oil was 327 billion dollars in 2011. This is approximately equal to the trade deficit with China. To balance the books we need to stop importing oil. Electricity is primarily a domestic product.
The EPA has this to say about a petrol powered car: "Only about 14%â26% of the energy from the fuel you put in your tank gets used to move your car down the road." http://www.fueleconomy.gov/feg/atv.shtml Tesla measured their roadster at approximately 92% efficiency from battery to wheels. http://www.efficient-mileage.com/tesla-roadster.html
When we look at a petrol vehicle we necessarily must look at the vehicle plus pollution from transporting the fuel and refining it (although few do) because where else are you going to get gasoline. It doesn't fall from the sky. Those who attribute power plant pollution to electric vehicles assume that there are no other options than the electric grid to power the vehicle. They assume it is not possible to get electricity from your roof, or the wind. The electric car will never be as closely tied to a specific source of its fuel like the petrol vehicle.
Over time electric vehicles will change. Someday power may be transmitted to them leaving no battery pack to charge. At that time the vehicles will have unlimited range with no recharging times: http://spectrum.ieee.org/green-tech/advanced-cars/the-allelectric-car-you-never-plug-in
If the entire US fleet of vehicles were electric they would require at most 30% of the electricity we presently use. However about 86% of those vehicles could be charged at night (off peak) with no additional generating equipment because we have at least that much excess capacity at night.
At the same time we would be saving about 6 kWh to 8kWh of energy (electricity and some other fuel sources) used to refine oil into each gallon of gasoline. The average electric car can go further on this much energy than the average petrol vehicle can go using the refined product.
We could easily run US vehicles on existing energy sources without the pollution of Oil.
And it is not just air pollution. Many will recall the months that it took to cap the BP oil well in the Gulf. Slightly more than 200 million gallons spilled in the worst ever ecological disaster? No Every year more than 200 million gallons of lubricating oil is drained from cars and improperly disposed of in the environment. Every Year. Petrol cars pollute more than just the air. Electric cars don't use lubricating fluids that need to be drained. http://www.epa.gov/osw/conserve/materials/usedoil/oil.htm
Are you worried about US economic health? The trade deficit attributed to imported oil was 327 billion dollars in 2011. This is approximately equal to the trade deficit with China. To balance the books we need to stop importing oil. Electricity is primarily a domestic product.
The EPA has this to say about a petrol powered car: "Only about 14%â26% of the energy from the fuel you put in your tank gets used to move your car down the road." http://www.fueleconomy.gov/feg/atv.shtml Tesla measured their roadster at approximately 92% efficiency from battery to wheels. http://www.efficient-mileage.com/tesla-roadster.html
When we look at a petrol vehicle we necessarily must look at the vehicle plus pollution from transporting the fuel and refining it (although few do) because where else are you going to get gasoline. It doesn't fall from the sky. Those who attribute power plant pollution to electric vehicles assume that there are no other options than the electric grid to power the vehicle. They assume it is not possible to get electricity from your roof, or the wind. The electric car will never be as closely tied to a specific source of its fuel like the petrol vehicle.
Over time electric vehicles will change. Someday power may be transmitted to them leaving no battery pack to charge. At that time the vehicles will have unlimited range with no recharging times: http://spectrum.ieee.org/green-tech/advanced-cars/the-allelectric-car-you-never-plug-in
How environmentally friendly is an electric car?
Dazed and
We are constantly told that the mass produced electric car will soon be with us and many people argue that this means zero pollution.
Clearly these people overlook the fact that as most of our electricity comes from burning fossil fuel we are merely moving the pollution from the actual vehicle to the power station.
Has anybody actually carried out any research into how environmentally friendly electric cars are when all factors are taken into consideration? I do not know the answer but my instant gut reaction is that electric cars are probably worse polluters that petrol or diesel cars; it must be less efficient to convert oil into electricity and send it round the country to charge batteries for cars than simply burning it within the vehicle.
Answer
The answer really only depends on the GGE mileage of a given electric vehicle. On average electric plants emit 1.341 lbm CO2/kWh. Since the GGE is 36.3kWh, a GGE of electricity would emit 40.66 lbm CO2. This is in comparison to 19.6 lbm CO2/gal for gasoline. Divide this by the average mileage of the gasoline cars (20.8) and you get 0.94 lbm CO2/mile. Now to do better than this an electric car would need to go more than 43.4 miles on a GGE. Some quick research turned up that most vehicles did do better than this, except the Ford Ranger EV at 39 MPGGE.
The answer really only depends on the GGE mileage of a given electric vehicle. On average electric plants emit 1.341 lbm CO2/kWh. Since the GGE is 36.3kWh, a GGE of electricity would emit 40.66 lbm CO2. This is in comparison to 19.6 lbm CO2/gal for gasoline. Divide this by the average mileage of the gasoline cars (20.8) and you get 0.94 lbm CO2/mile. Now to do better than this an electric car would need to go more than 43.4 miles on a GGE. Some quick research turned up that most vehicles did do better than this, except the Ford Ranger EV at 39 MPGGE.
Powered by Yahoo! Answers
Title Post: How much better are electric cars?
Rating: 92% based on 925 ratings. 4 user reviews.
Author: Unknown
Thanks For Coming To My Blog
Rating: 92% based on 925 ratings. 4 user reviews.
Author: Unknown
Thanks For Coming To My Blog
No comments:
Post a Comment