Forum Replies Created
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ucodegen
Participantucodegen, you said “There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline.”
I agree that today’s batteries can’t, but why do you say that there is no way?
Because the nature of the chemistry involved. Batteries are capturing the charge that moves in a reaction. The reaction involves few bonds. In the case of gasoline, the reaction involves several bonds and several exothermic reactions. If you notice, the higher capacity batteries are almost (but not quite) like explosive (ie: Lithium Ion batteries) The chemistry in these batteries have to be very reactive to produce the electrical energy. But these batteries end up producing even more energy if they burn (but then they can’t be recharged).
Also, I’ve heard of ultra capacitors possibly being used in electric cars, which could be a significant break through.
Not really. Ultra capacitors will never be able to store the amount of energy in a battery. That is because capacitors (even ultra caps) store energy at a physical structural level(several atoms in size) while a battery stores energy at an atomic level. Ultra caps are useful for storing moderate amounts of energy over a short time (they leak energy) and being able to dump that energy incredibly rapidly. They can be used to flatten peaks in the demand and fill up the valleys.. ie: discharge an ultra cap when acceleration and recharge when de-accelerating. You need very high currents during both of these, but between.. the demand is low.I’ve read that that the “well-to-wheel” efficiency is better using an electric car than a gasoline car. In other words, generating electricity at a remotely located power plant using a gallon of gas… This is because the power plant is much more efficient and clean in the power conversion process.
Are you taking into account transmission losses (radiated, resistive and inductive coupling)? Step down transformer losses? These loses are quite considerable, and are part of the reason why several companies have resorted to generating their electricity on site (UCSD is an example). If you look at the cost of generating electricity with an engine vs what it costs to produce with your own generator, it can come quite close. This ignores that the electrical generating stations get a break on the cost of fuel (buy in bulk – Costco model, don’t have consumption taxes – no gasoline tax, can sell their waste heat to factories near by). I have read the same.. but using my EE-CE background and running the numbers, it just ain’t so. In fact these losses are so great that power companies try to get the generating station as close to the point of consumption as possible.
Once the price of solar panels comes down, people can install panels on their roof and possibly drive with only the cost of vehicle maintenance.
There are people already doing this. The problem is that you need over 2000sq ft with full sun visibility to have it effective. Using solar panels at the site of consumption(house) is more effective than off in the desert somewhere. You have eliminated the electrical transmission losses. The one problem in “price of solar panels comes down” is that they are already subsidized (through tax offsets). You need large amounts of very pure silicon (same type you make computer chips from) to make solar cells (99+% pure is very expensive) Even then, you are looking at a conversion efficiency under 10% except for expensive exotics. The reason why it is hard to get any higher than this has to do with quantum physics; energy of a photon and electrical breakdown voltage threshold in a semiconductor junction. Each wavelength of light has a different energy in Volts, though each contributes 1 electron of charge at that potential.I admit we likely do not have the power generation facilities to accommodate a large number of electric cars today, but it is certainly a feasible alternative in the near future.
This will only be feasible of you tax the crap out of gasoline and subsidize electricity. Electrical companies are all for this.@kewp
There are much more efficient engine designs available, its just no one has brought them to market yet. I guess the invisible hand is going to change that shortly.Yep there are. It is interesting how it takes only one auto company to prod things into motion. Example: the direct injection gasoline(not diesel) engine that Audi and Mazda are coming out with/using was first being designed back around 1982 (or before. ’82 was when I first heard about it).
@arraya
We don’t panic very easily around here… so don’t bother. There is still an incredible amount of energy around (in one form or another)… so the population will continue to grow…ucodegen
Participantucodegen, you said “There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline.”
I agree that today’s batteries can’t, but why do you say that there is no way?
Because the nature of the chemistry involved. Batteries are capturing the charge that moves in a reaction. The reaction involves few bonds. In the case of gasoline, the reaction involves several bonds and several exothermic reactions. If you notice, the higher capacity batteries are almost (but not quite) like explosive (ie: Lithium Ion batteries) The chemistry in these batteries have to be very reactive to produce the electrical energy. But these batteries end up producing even more energy if they burn (but then they can’t be recharged).
Also, I’ve heard of ultra capacitors possibly being used in electric cars, which could be a significant break through.
Not really. Ultra capacitors will never be able to store the amount of energy in a battery. That is because capacitors (even ultra caps) store energy at a physical structural level(several atoms in size) while a battery stores energy at an atomic level. Ultra caps are useful for storing moderate amounts of energy over a short time (they leak energy) and being able to dump that energy incredibly rapidly. They can be used to flatten peaks in the demand and fill up the valleys.. ie: discharge an ultra cap when acceleration and recharge when de-accelerating. You need very high currents during both of these, but between.. the demand is low.I’ve read that that the “well-to-wheel” efficiency is better using an electric car than a gasoline car. In other words, generating electricity at a remotely located power plant using a gallon of gas… This is because the power plant is much more efficient and clean in the power conversion process.
Are you taking into account transmission losses (radiated, resistive and inductive coupling)? Step down transformer losses? These loses are quite considerable, and are part of the reason why several companies have resorted to generating their electricity on site (UCSD is an example). If you look at the cost of generating electricity with an engine vs what it costs to produce with your own generator, it can come quite close. This ignores that the electrical generating stations get a break on the cost of fuel (buy in bulk – Costco model, don’t have consumption taxes – no gasoline tax, can sell their waste heat to factories near by). I have read the same.. but using my EE-CE background and running the numbers, it just ain’t so. In fact these losses are so great that power companies try to get the generating station as close to the point of consumption as possible.
Once the price of solar panels comes down, people can install panels on their roof and possibly drive with only the cost of vehicle maintenance.
There are people already doing this. The problem is that you need over 2000sq ft with full sun visibility to have it effective. Using solar panels at the site of consumption(house) is more effective than off in the desert somewhere. You have eliminated the electrical transmission losses. The one problem in “price of solar panels comes down” is that they are already subsidized (through tax offsets). You need large amounts of very pure silicon (same type you make computer chips from) to make solar cells (99+% pure is very expensive) Even then, you are looking at a conversion efficiency under 10% except for expensive exotics. The reason why it is hard to get any higher than this has to do with quantum physics; energy of a photon and electrical breakdown voltage threshold in a semiconductor junction. Each wavelength of light has a different energy in Volts, though each contributes 1 electron of charge at that potential.I admit we likely do not have the power generation facilities to accommodate a large number of electric cars today, but it is certainly a feasible alternative in the near future.
This will only be feasible of you tax the crap out of gasoline and subsidize electricity. Electrical companies are all for this.@kewp
There are much more efficient engine designs available, its just no one has brought them to market yet. I guess the invisible hand is going to change that shortly.Yep there are. It is interesting how it takes only one auto company to prod things into motion. Example: the direct injection gasoline(not diesel) engine that Audi and Mazda are coming out with/using was first being designed back around 1982 (or before. ’82 was when I first heard about it).
@arraya
We don’t panic very easily around here… so don’t bother. There is still an incredible amount of energy around (in one form or another)… so the population will continue to grow…ucodegen
Participantucodegen, you said “There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline.”
I agree that today’s batteries can’t, but why do you say that there is no way?
Because the nature of the chemistry involved. Batteries are capturing the charge that moves in a reaction. The reaction involves few bonds. In the case of gasoline, the reaction involves several bonds and several exothermic reactions. If you notice, the higher capacity batteries are almost (but not quite) like explosive (ie: Lithium Ion batteries) The chemistry in these batteries have to be very reactive to produce the electrical energy. But these batteries end up producing even more energy if they burn (but then they can’t be recharged).
Also, I’ve heard of ultra capacitors possibly being used in electric cars, which could be a significant break through.
Not really. Ultra capacitors will never be able to store the amount of energy in a battery. That is because capacitors (even ultra caps) store energy at a physical structural level(several atoms in size) while a battery stores energy at an atomic level. Ultra caps are useful for storing moderate amounts of energy over a short time (they leak energy) and being able to dump that energy incredibly rapidly. They can be used to flatten peaks in the demand and fill up the valleys.. ie: discharge an ultra cap when acceleration and recharge when de-accelerating. You need very high currents during both of these, but between.. the demand is low.I’ve read that that the “well-to-wheel” efficiency is better using an electric car than a gasoline car. In other words, generating electricity at a remotely located power plant using a gallon of gas… This is because the power plant is much more efficient and clean in the power conversion process.
Are you taking into account transmission losses (radiated, resistive and inductive coupling)? Step down transformer losses? These loses are quite considerable, and are part of the reason why several companies have resorted to generating their electricity on site (UCSD is an example). If you look at the cost of generating electricity with an engine vs what it costs to produce with your own generator, it can come quite close. This ignores that the electrical generating stations get a break on the cost of fuel (buy in bulk – Costco model, don’t have consumption taxes – no gasoline tax, can sell their waste heat to factories near by). I have read the same.. but using my EE-CE background and running the numbers, it just ain’t so. In fact these losses are so great that power companies try to get the generating station as close to the point of consumption as possible.
Once the price of solar panels comes down, people can install panels on their roof and possibly drive with only the cost of vehicle maintenance.
There are people already doing this. The problem is that you need over 2000sq ft with full sun visibility to have it effective. Using solar panels at the site of consumption(house) is more effective than off in the desert somewhere. You have eliminated the electrical transmission losses. The one problem in “price of solar panels comes down” is that they are already subsidized (through tax offsets). You need large amounts of very pure silicon (same type you make computer chips from) to make solar cells (99+% pure is very expensive) Even then, you are looking at a conversion efficiency under 10% except for expensive exotics. The reason why it is hard to get any higher than this has to do with quantum physics; energy of a photon and electrical breakdown voltage threshold in a semiconductor junction. Each wavelength of light has a different energy in Volts, though each contributes 1 electron of charge at that potential.I admit we likely do not have the power generation facilities to accommodate a large number of electric cars today, but it is certainly a feasible alternative in the near future.
This will only be feasible of you tax the crap out of gasoline and subsidize electricity. Electrical companies are all for this.@kewp
There are much more efficient engine designs available, its just no one has brought them to market yet. I guess the invisible hand is going to change that shortly.Yep there are. It is interesting how it takes only one auto company to prod things into motion. Example: the direct injection gasoline(not diesel) engine that Audi and Mazda are coming out with/using was first being designed back around 1982 (or before. ’82 was when I first heard about it).
@arraya
We don’t panic very easily around here… so don’t bother. There is still an incredible amount of energy around (in one form or another)… so the population will continue to grow…ucodegen
ParticipantWhy can’t someone build a decent electric car?
There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline. The only way electric cars can get close is high efficiency drivetrains.
An alternate would be fuel cell.. but how would we get the energy to reduce water to hydrogen and oxygen? or what would the inputs be for the chemistry to produce the oxygen and hydrogen?
By the way, where and what form does most of our electricity come from? Don’t forget to factor in transmission losses in the overall equation for the cost on the electric car.
There is a reason why the GM electric car disappeared after the test phase (actually 2). One was that GM was destroying the cars to reduce their liability after the test was done, the second and more important was that the cars use of electricity for recharging was underwritten or sponsored so that people would not see the full cost. You want electric bills of well over $1300/month? Get an electric car.
Another way to look at it is: Your refrigerator/freezer is generally the largest energy consumer in the house. To run one on a backup generator requires a generator of at least 5kva in power (or about 7 horsepower). Every time the fridge powers up to keep cool, that is 7 horsepower running. Cars on the freeway require about 15hp @ 60mph (for constant speed). You add electric car charging costs to your electric bill, you will have to electrically pour that 15hp into the battery. By the way, charging a battery is not 100% efficient, it is generally around 80% in and 80% out (conversion when you use it). That means you have to pour in 23.44hp in to get 15hp on demand when driving an electric vehicle (note that I am using constant speed.. so costs due to acceleration and de-acceleration are not even being covered). By the way, I am also not considering the efficiency of the motor (generally around 90%) nor the wiring (depends on type and gauge).. both increase the charging demands.
Now compare the duration of the power usage.. the fridge powers up for about 1 to 2 minutes about 5 to 10 times a day(7hp for 5 to 20 min). Your drive to work is?? about 30 minutes each way? more? (23.44hp for 30min to 60min) Note: Comparing power demand at the electric meter here
Electric cars can be effective, but only if you have your own PV Array (Photo-Voltaic Array). To size one for electric vehicles, you are looking at around a 30KVA array. Some electric companies will have heartburn here.. you are above 10KVA which they like to use as a threshold.
Disclaimer: My calculations are rough here.. and variance depends upon build of electric vehicle, electric control system and type of batteries
BTW: There is a RAV4 electric vehicle you can buy.. but you have to get it used. It was discontinued in 2003. There is also a tzero as well as a ford ranger EV… and some others. More Links.. I could locate more.. but time for me to get some ZZZs before I turn into a pumpkin..
ucodegen
ParticipantWhy can’t someone build a decent electric car?
There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline. The only way electric cars can get close is high efficiency drivetrains.
An alternate would be fuel cell.. but how would we get the energy to reduce water to hydrogen and oxygen? or what would the inputs be for the chemistry to produce the oxygen and hydrogen?
By the way, where and what form does most of our electricity come from? Don’t forget to factor in transmission losses in the overall equation for the cost on the electric car.
There is a reason why the GM electric car disappeared after the test phase (actually 2). One was that GM was destroying the cars to reduce their liability after the test was done, the second and more important was that the cars use of electricity for recharging was underwritten or sponsored so that people would not see the full cost. You want electric bills of well over $1300/month? Get an electric car.
Another way to look at it is: Your refrigerator/freezer is generally the largest energy consumer in the house. To run one on a backup generator requires a generator of at least 5kva in power (or about 7 horsepower). Every time the fridge powers up to keep cool, that is 7 horsepower running. Cars on the freeway require about 15hp @ 60mph (for constant speed). You add electric car charging costs to your electric bill, you will have to electrically pour that 15hp into the battery. By the way, charging a battery is not 100% efficient, it is generally around 80% in and 80% out (conversion when you use it). That means you have to pour in 23.44hp in to get 15hp on demand when driving an electric vehicle (note that I am using constant speed.. so costs due to acceleration and de-acceleration are not even being covered). By the way, I am also not considering the efficiency of the motor (generally around 90%) nor the wiring (depends on type and gauge).. both increase the charging demands.
Now compare the duration of the power usage.. the fridge powers up for about 1 to 2 minutes about 5 to 10 times a day(7hp for 5 to 20 min). Your drive to work is?? about 30 minutes each way? more? (23.44hp for 30min to 60min) Note: Comparing power demand at the electric meter here
Electric cars can be effective, but only if you have your own PV Array (Photo-Voltaic Array). To size one for electric vehicles, you are looking at around a 30KVA array. Some electric companies will have heartburn here.. you are above 10KVA which they like to use as a threshold.
Disclaimer: My calculations are rough here.. and variance depends upon build of electric vehicle, electric control system and type of batteries
BTW: There is a RAV4 electric vehicle you can buy.. but you have to get it used. It was discontinued in 2003. There is also a tzero as well as a ford ranger EV… and some others. More Links.. I could locate more.. but time for me to get some ZZZs before I turn into a pumpkin..
ucodegen
ParticipantWhy can’t someone build a decent electric car?
There is no way for a battery to contain the same amount of energy per pound as a gallon of gasoline. The only way electric cars can get close is high efficiency drivetrains.
An alternate would be fuel cell.. but how would we get the energy to reduce water to hydrogen and oxygen? or what would the inputs be for the chemistry to produce the oxygen and hydrogen?
By the way, where and what form does most of our electricity come from? Don’t forget to factor in transmission losses in the overall equation for the cost on the electric car.
There is a reason why the GM electric car disappeared after the test phase (actually 2). One was that GM was destroying the cars to reduce their liability after the test was done, the second and more important was that the cars use of electricity for recharging was underwritten or sponsored so that people would not see the full cost. You want electric bills of well over $1300/month? Get an electric car.
Another way to look at it is: Your refrigerator/freezer is generally the largest energy consumer in the house. To run one on a backup generator requires a generator of at least 5kva in power (or about 7 horsepower). Every time the fridge powers up to keep cool, that is 7 horsepower running. Cars on the freeway require about 15hp @ 60mph (for constant speed). You add electric car charging costs to your electric bill, you will have to electrically pour that 15hp into the battery. By the way, charging a battery is not 100% efficient, it is generally around 80% in and 80% out (conversion when you use it). That means you have to pour in 23.44hp in to get 15hp on demand when driving an electric vehicle (note that I am using constant speed.. so costs due to acceleration and de-acceleration are not even being covered). By the way, I am also not considering the efficiency of the motor (generally around 90%) nor the wiring (depends on type and gauge).. both increase the charging demands.
Now compare the duration of the power usage.. the fridge powers up for about 1 to 2 minutes about 5 to 10 times a day(7hp for 5 to 20 min). Your drive to work is?? about 30 minutes each way? more? (23.44hp for 30min to 60min) Note: Comparing power demand at the electric meter here
Electric cars can be effective, but only if you have your own PV Array (Photo-Voltaic Array). To size one for electric vehicles, you are looking at around a 30KVA array. Some electric companies will have heartburn here.. you are above 10KVA which they like to use as a threshold.
Disclaimer: My calculations are rough here.. and variance depends upon build of electric vehicle, electric control system and type of batteries
BTW: There is a RAV4 electric vehicle you can buy.. but you have to get it used. It was discontinued in 2003. There is also a tzero as well as a ford ranger EV… and some others. More Links.. I could locate more.. but time for me to get some ZZZs before I turn into a pumpkin..
ucodegen
ParticipantDefinitely quirky.. I wonder about flammable trees vs available water? Priced way out of reason though. If you have a 4k sqft house, I would expect the bedrooms to be larger than 12×12. Layout inside is probably strange.
I tried to get an on-top view from Google maps, but couldn’t locate it.
ucodegen
ParticipantDefinitely quirky.. I wonder about flammable trees vs available water? Priced way out of reason though. If you have a 4k sqft house, I would expect the bedrooms to be larger than 12×12. Layout inside is probably strange.
I tried to get an on-top view from Google maps, but couldn’t locate it.
ucodegen
ParticipantDefinitely quirky.. I wonder about flammable trees vs available water? Priced way out of reason though. If you have a 4k sqft house, I would expect the bedrooms to be larger than 12×12. Layout inside is probably strange.
I tried to get an on-top view from Google maps, but couldn’t locate it.
ucodegen
ParticipantMy point was that……………The entire thread doesn’t belong here….
Actually it does.. take a look at timestamp 1:10 and beyond.
The problem is that several statements are misleading or incorrect. In terms of the Federal Reserve relationship with US Gov, it might be worth double checking. I suspect a severe mis-statement in the film though.
ucodegen
ParticipantMy point was that……………The entire thread doesn’t belong here….
Actually it does.. take a look at timestamp 1:10 and beyond.
The problem is that several statements are misleading or incorrect. In terms of the Federal Reserve relationship with US Gov, it might be worth double checking. I suspect a severe mis-statement in the film though.
ucodegen
ParticipantMy point was that……………The entire thread doesn’t belong here….
Actually it does.. take a look at timestamp 1:10 and beyond.
The problem is that several statements are misleading or incorrect. In terms of the Federal Reserve relationship with US Gov, it might be worth double checking. I suspect a severe mis-statement in the film though.
ucodegen
ParticipantI’m already in the middle of it.
You are if you let yourself be put in the middle.
This woman called me up at 8:00 pm (I kid you not) and proceeded with a sob story of how her and her husband gave the son large amounts of money to purchase the house they live in and funded some other type of real estate investment for them.
This call crosses legal boundaries and can be considered harassment. In addition, if I were the mom, I would be careful of using the term ‘gave’.
They are not on speaking terms. The last I talked with the mother, the son said some things to her that was so horrible, she had to hang up on him.
Irrelevant on not being on speaking terms. This is getting into the middle. Your dealings with either need to be kept at the professional and legal level. They are both trying to draw you in.
The mother filed a notice of default on this property last month. The son says his lawyer will block it. The son is adamant that he’s not going to lose the property. Does anybody on here believe him?
Irrelevant. The NOD does not transfer ownership it is only the first step. Don’t put any weight on promises. For all you know, they are both in it together.
the mother sent me a whole packet on “rent skimming” said it’s exactly what her son is doing. I guess he is.
He hasn’t paid his mortgage in over 6 months.And she waited close to 6 months to do anything? She is an enabler. Your contract is with the son. Don’t get in between them. Once the mother(second lien) forecloses, it will be with the mother. Don’t shortcut. If you start paying the mother, you can be evicted by the son because until the transfer, he is the owner.
I didn’t mention that the house I’m in is next to some horrible neighbors. The lady takes in foster kids. What the owner did NOT mention to me when I signed the lease was that one of this lady’s teenage foster kids sexually assaulted a nine-year-old-girl who lived on this street.
Good enough reason to move.. should have done it sooner. So you want your son to learn from this deviant who is your neighbor?
There is a nice community of brand new apts that look like condos in a good area (the school aren’t good, so I would put in a transfer)) that would allow me to save money for a house and get out of this mess.
Umm.. what are you waiting for? And the schools where you are (with the likes of that deviant), are good?
ucodegen
ParticipantI’m already in the middle of it.
You are if you let yourself be put in the middle.
This woman called me up at 8:00 pm (I kid you not) and proceeded with a sob story of how her and her husband gave the son large amounts of money to purchase the house they live in and funded some other type of real estate investment for them.
This call crosses legal boundaries and can be considered harassment. In addition, if I were the mom, I would be careful of using the term ‘gave’.
They are not on speaking terms. The last I talked with the mother, the son said some things to her that was so horrible, she had to hang up on him.
Irrelevant on not being on speaking terms. This is getting into the middle. Your dealings with either need to be kept at the professional and legal level. They are both trying to draw you in.
The mother filed a notice of default on this property last month. The son says his lawyer will block it. The son is adamant that he’s not going to lose the property. Does anybody on here believe him?
Irrelevant. The NOD does not transfer ownership it is only the first step. Don’t put any weight on promises. For all you know, they are both in it together.
the mother sent me a whole packet on “rent skimming” said it’s exactly what her son is doing. I guess he is.
He hasn’t paid his mortgage in over 6 months.And she waited close to 6 months to do anything? She is an enabler. Your contract is with the son. Don’t get in between them. Once the mother(second lien) forecloses, it will be with the mother. Don’t shortcut. If you start paying the mother, you can be evicted by the son because until the transfer, he is the owner.
I didn’t mention that the house I’m in is next to some horrible neighbors. The lady takes in foster kids. What the owner did NOT mention to me when I signed the lease was that one of this lady’s teenage foster kids sexually assaulted a nine-year-old-girl who lived on this street.
Good enough reason to move.. should have done it sooner. So you want your son to learn from this deviant who is your neighbor?
There is a nice community of brand new apts that look like condos in a good area (the school aren’t good, so I would put in a transfer)) that would allow me to save money for a house and get out of this mess.
Umm.. what are you waiting for? And the schools where you are (with the likes of that deviant), are good?
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