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alwaysyode
for electric cars? The current heat wave is stressing the grid that has had blackouts in the past. I am trying to understand how it would be able to service all the electric cars the industry and government are moving towards.
Answer
It depends upon how it is done and who you ask. Our electric grid is not like a fuel pump. Fuel is produced according to demand. It can be produced 24/7 as it is in many refineries and the capacity of the refineries only have to match the total consumption.
It has not been economical to store our grid electricity. Consumption varies throughout the day. The peak consumption is typically from around 10 am up to around 9 pm. We have to have enough power to supply this peak demand and the number of power plants and their capacity is then sized to the peak load. This leaves a lot of unused capacity in the off peak hours.
If we were to charge electric vehicles in the off peak times estimates of our capacity to power a percentage of our present fleet with our existing power plants range from:
73% http://www.groovygreen.com/groove/?p=1782
to
84% http://www.greenbiz.com/news/2006/12/11/mileage-megawatts-enough-grid-capacity-charge-plug-vehicles
Plug in electric vehicles also have the capacity to make the entire grid more efficient by providing energy storage and "peak shaving:" http://www.govtech.com/gt/articles/766804
http://www.udel.edu/V2G/ Owners of electric vehicles could conceivably use them as an income by having the vehicles charge with cheap off peak electricity and then sell the power back to the grid at peak rates. Electric cars then can effectively increase our peak power capacity without adding any new power plants.
It depends upon how it is done and who you ask. Our electric grid is not like a fuel pump. Fuel is produced according to demand. It can be produced 24/7 as it is in many refineries and the capacity of the refineries only have to match the total consumption.
It has not been economical to store our grid electricity. Consumption varies throughout the day. The peak consumption is typically from around 10 am up to around 9 pm. We have to have enough power to supply this peak demand and the number of power plants and their capacity is then sized to the peak load. This leaves a lot of unused capacity in the off peak hours.
If we were to charge electric vehicles in the off peak times estimates of our capacity to power a percentage of our present fleet with our existing power plants range from:
73% http://www.groovygreen.com/groove/?p=1782
to
84% http://www.greenbiz.com/news/2006/12/11/mileage-megawatts-enough-grid-capacity-charge-plug-vehicles
Plug in electric vehicles also have the capacity to make the entire grid more efficient by providing energy storage and "peak shaving:" http://www.govtech.com/gt/articles/766804
http://www.udel.edu/V2G/ Owners of electric vehicles could conceivably use them as an income by having the vehicles charge with cheap off peak electricity and then sell the power back to the grid at peak rates. Electric cars then can effectively increase our peak power capacity without adding any new power plants.
Would you trade your car for an electric one?
rambling v
If someone offered to exchange your car for an electric car of comparable value, would you make the trade?
(I beg your pardon, afratta437. Before asking questions in the future, I should consult with the republican cyberbully.)
Answer
Yes, I would make the trade! There is technology available NOW to make an electric car run up to 300+ miles on one charge. Why is it that an oil company owns the company that makes the batteries? Afraid of the competition?
We are talking about breaking our dependency on foreign oil, yet every year fuel milage on new vehicles BS. How is it that back in the late 70s, early 80s fuel efficiency increased by leaps and bounds, but now, it jumps by 2 mpg, and auto makers expect a technological award.
Auto makers and oil companies CRUSHED the first electric car since the beginning of the LAST century. There were electric cars and trucks in large numbers running on 19th century technology, yet here we are in the 21st century dealing with global warming, high butt gas prices, SMOG, etc, but we can't make a totally electric vehicle to satisfy US consumers? I don't think so!!!
The hydrogen car is not a future dream, it's a nightmare. Nothing about it is economical. If you think the electric car is bad, the hydrogen car is multiple times worse.
There is a company in Australia and one in France working on a car that runs off compressed air. If you haven't heard of either of them, here is a link to help you out.
http://www.youtube.com/watch?v=QmqpGZv0YT4
As much as it costs these days to own and operate a vehicle, anything other than gas powered will cost more to purchase, but in the long run will cost less to operate.
It's sad, I guess the US will have to wait for a foreign auto maker to come in and put that last nail in the coffin before they create a vehicle that the people want. Oh, people DO want an electric car, air car.....anything that will run on something other than gas, but won't do as much harm to the environment. Not that many people want Hummers, but GM produced them. I wil bet my dollar to anyone's penny that more people would be interested in a vehicle that runs off of the means mentioned than the number of Hummers H1 sold. US automakers are getting beat as though they stole something by Toyota. When will they wake up? I guess with 'oil men' in the white house, it will have to be under another president to encourage and FUND research for alternative fuels.....other than hydrogen.
Yes, I would make the trade! There is technology available NOW to make an electric car run up to 300+ miles on one charge. Why is it that an oil company owns the company that makes the batteries? Afraid of the competition?
We are talking about breaking our dependency on foreign oil, yet every year fuel milage on new vehicles BS. How is it that back in the late 70s, early 80s fuel efficiency increased by leaps and bounds, but now, it jumps by 2 mpg, and auto makers expect a technological award.
Auto makers and oil companies CRUSHED the first electric car since the beginning of the LAST century. There were electric cars and trucks in large numbers running on 19th century technology, yet here we are in the 21st century dealing with global warming, high butt gas prices, SMOG, etc, but we can't make a totally electric vehicle to satisfy US consumers? I don't think so!!!
The hydrogen car is not a future dream, it's a nightmare. Nothing about it is economical. If you think the electric car is bad, the hydrogen car is multiple times worse.
There is a company in Australia and one in France working on a car that runs off compressed air. If you haven't heard of either of them, here is a link to help you out.
http://www.youtube.com/watch?v=QmqpGZv0YT4
As much as it costs these days to own and operate a vehicle, anything other than gas powered will cost more to purchase, but in the long run will cost less to operate.
It's sad, I guess the US will have to wait for a foreign auto maker to come in and put that last nail in the coffin before they create a vehicle that the people want. Oh, people DO want an electric car, air car.....anything that will run on something other than gas, but won't do as much harm to the environment. Not that many people want Hummers, but GM produced them. I wil bet my dollar to anyone's penny that more people would be interested in a vehicle that runs off of the means mentioned than the number of Hummers H1 sold. US automakers are getting beat as though they stole something by Toyota. When will they wake up? I guess with 'oil men' in the white house, it will have to be under another president to encourage and FUND research for alternative fuels.....other than hydrogen.
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Title Post: Can our electric power grid really provide all the electric power needed?
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Author: Unknown
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