Thanks for your answer. Yes, there is heavy loading in the area, and we were refused increased power allocation. This isn't at home, it's at work. We exceeded the alloted single phase power, and were relocated on a higher power three-phase connection.
At our requests for increased power allocation, they suggested to receive our power from the industrial area - and pay for a several miles long electric line from the outskirts of the city to our office. Let's say that the price was an issue:(
I think I am the victim of a misunderstanding here.
Where I live, when load increases (like in the evening - this is a residential area) the voltage drops. I've measured once a voltage of 175V (from the rated 220V) on a power phase (I haven't measured the others).
What could be the cause of such a voltage drop? Phase unbalance? Overwhelmed power lines and transformers? Or maybe insufficient generating capacity?
(this is not a flame, I really would like to have your answer. I'm sorry I don't have more data) (For your information, I've had situations with 180+V, 200+V and some 210V voltage - we have here a three phase power connection)
Electricity might be at a premium rate during the evening - when your car might provide it. Also, assuming that you are in a state that won't let you build coal plants and that the incoming power lines are already over nominal, the electricity company simply has no other way to get energy. Building a gas-fired generator is costly, takes a bit of time, and the electricity it generates is expensive (fuel costs).
"When you're planning on a car trip, you SHUT OFF this V2G mode, and put it on the normal charging cycle. " This bets against the consumer's laziness, and as such is a hopeless measure.
This isn't about generating electricity at YOUR desire (or sun's desire or wind desire). What you propose is the PROBLEM for which the electric car's battery balancing is the SOLUTION.
The battery in the car will give energy back into the system WHEN THE ELECTRICITY IS NEEDED, not when you have some available.
In the electric grid there is a minimal, constant power needed - this is the baseline. Above this, the request fluctuates - with some slow gradients and some fast gradients.
Slow gradients are things like the move from evening to night (people go to sleep, lights go off, TVs go off). As people go to sleep from - let's say 9 PM to 12PM, there is a slow change in electricity need. "Baseload" power plants usually can change their output to account for this.
And there are fast gradients. Some of them are small, like an entire office building starting or shutting down their lights. Some, however, are not so small - like - let's say - an entire neighboorhood starting their electric boilers at the same time). When this happens, a brownout ensures - the electric plant is overwhelmed, and its output voltage drops. Having a lower voltage, the electric boilers will consume less power than at full voltage (Power is voltage squared demultiplied by resistance/impedance). However, some consumers (switching power supplies) will just take a higher amperage, and the voltage goes even lower.
For this kind of fast gradients, the gas turbines are used as "fast switching" sources. A gas turbine is able to ramp from - let's say 10% to 90% rated power - in the space of a couple of seconds (for comparation, a hydroelectric big plant will ramp the same in a couple of minutes or more). Ramping back might be even slower on baseload power plants (unless they choose to vent already heated steam). Yet, electricity generated from natural gas is expensive (much more so compared to coal or hydro). Also, the nuclear plants (while they might be able to ramp quickly on and off) are NOT designed to do so, and are not tested to do so. They are just slow-ramping, base line power plants.
As such, the electricity company hopes to supplement some of this "fast switching", expensive electricity with your car's battery.
Books in a humid environment have a reduced lifespan.
Do not compare old manuscripts (handwritten on leather) to recent books. Also, do not compare the longevity of 17th century paper-printed books (kept in controlled temperature, humidity and lack of oxygen) to current books. And once more, do not compare the longevity of the 50 years old books you have in your house to books exposed to extreme heat, humidity and maybe from time to time a little flood.
CDs aren't yet dead, and the mp3 format is older than a decade.
So yes, it will take a decade for downloaded videos to kill DVDs and high definition alternatives
Yes, I'd like a screen readable in sunlight and with a resolution of 1200x900 pixels (in black and white, even if the resolution in color is closer to 400x300). A waterproof laptop would be great.
RIAA is a puppet, paid by the big music companies. It doesn't have much power, and no power over what their masters allow it.
RIAA's power will decrease after this.
How about radio play, talk shows? I think it will be business as usual - if the other big music corporations will ignore this. If they will lobby the radio stations, it might be possible that EMI loses some air time.
In Europe, Romania
Using Vodafone $11 for a plan with 50 free minutes, 20 minutes bonus from plan signup, 30 minutes for old customer. $0.07 for SMS, free voice mail (but I've disabled it), free caller id, free to receive calls and messages. I don't use MMS, so I don't know about their price.
I have months when I use double the minutes, and months when I use half of them. They roll on the next month:D
Also, tanks are built to fight tanks. Their top armour is shamefully thin (this goes for russian AND american tanks). This is the reason recent anti-tank rockets are fired upward, and will attack the tank in a descending trajectory (hitting the top armour, not the front or side armour).
Solutions exist to this problem - but they are rather small, expensive, not always applicable, or not very efficient. Research is needed in current fields, and maybe new fields will get us revolutionary solutions (or just old, working solutions)
Earth is indeed a zero sum game - ignoring some of the things won't make them go away. Nuclear power don't come from our sun (but from other stars, long gone).
Earth is a zero sum game - the energy (solar and wind, let's say) that we don't use will go in other parts, and be used there. Existing fossil resources are consumed, while others are created. Solar energy comes and goes (or else Earth will heat ad infinitum or cool to zero). Cosmic dust is attracted to Earth day by day.
Hydrogen generation and consumption on site is inefficient - however, so are other methods of storage (like high/low water reservoirs).
However, if the heat obtained in the hydrogen to electricity generation is usable, the efficiency goes up quite a bit. Some industries needs both electricity and heat, so this could be a solution if energy rates differ enough from day to night
While general energy costs have gone slightly up in the last period.
New manufacturing, economies of scale and other factors helped renewable energy. This (I hope) will continue in the future.
Yet, when the cost of energy goes up, the cost of manufacturing goes up, the cost of transportation goes up and so on. And, even if the petrol cost have risen sharply, electricity is mostly generated from coal (I have no idea which way the coal cost went lately)
Amazingly, you can't easily move electricity from USA to Europe, or from Australia to Africa. Until huge (and I mean HUGE) electricity transport lines are laid out, and huge transformation stations are up and working, you can't transmit electricity.
For low scale energy consumption, using local storage is probably cheaper
Interesting is that, being on grid is cheaper for energy sufficiency than being off-grid. Even if you have your production capability, the storage (battery banks) is expensive. Being connected to grid for those no sun, no wind, and so on moments is cheaper than operating a battery bank in the basement
Slashdot Mirror
There is Windows 2003 R2 Edition KN with SP2
Windows 2003 R2 Edition KN (no SP)
There is Windows Vista Business N (which might be the reduced edition)
No Windows 2000 without WMP
I assume you are sarcastic - but know that now THERE ARE WINDOWS VERSIONS without Media Player - XP Home Edition N and Professional Edition N
Thanks for your answer. Yes, there is heavy loading in the area, and we were refused increased power allocation. :(
This isn't at home, it's at work. We exceeded the alloted single phase power, and were relocated on a higher power three-phase connection.
At our requests for increased power allocation, they suggested to receive our power from the industrial area - and pay for a several miles long electric line from the outskirts of the city to our office. Let's say that the price was an issue
I think I am the victim of a misunderstanding here.
Where I live, when load increases (like in the evening - this is a residential area) the voltage drops. I've measured once a voltage of 175V (from the rated 220V) on a power phase (I haven't measured the others).
What could be the cause of such a voltage drop? Phase unbalance? Overwhelmed power lines and transformers? Or maybe insufficient generating capacity?
(this is not a flame, I really would like to have your answer. I'm sorry I don't have more data)
(For your information, I've had situations with 180+V, 200+V and some 210V voltage - we have here a three phase power connection)
Electricity might be at a premium rate during the evening - when your car might provide it. Also, assuming that you are in a state that won't let you build coal plants and that the incoming power lines are already over nominal, the electricity company simply has no other way to get energy. Building a gas-fired generator is costly, takes a bit of time, and the electricity it generates is expensive (fuel costs).
"When you're planning on a car trip, you SHUT OFF this V2G mode, and put it on the normal charging cycle.
"
This bets against the consumer's laziness, and as such is a hopeless measure.
This isn't about generating electricity at YOUR desire (or sun's desire or wind desire). What you propose is the PROBLEM for which the electric car's battery balancing is the SOLUTION.
The battery in the car will give energy back into the system WHEN THE ELECTRICITY IS NEEDED, not when you have some available.
In the electric grid there is a minimal, constant power needed - this is the baseline. Above this, the request fluctuates - with some slow gradients and some fast gradients.
Slow gradients are things like the move from evening to night (people go to sleep, lights go off, TVs go off). As people go to sleep from - let's say 9 PM to 12PM, there is a slow change in electricity need. "Baseload" power plants usually can change their output to account for this.
And there are fast gradients. Some of them are small, like an entire office building starting or shutting down their lights. Some, however, are not so small - like - let's say - an entire neighboorhood starting their electric boilers at the same time). When this happens, a brownout ensures - the electric plant is overwhelmed, and its output voltage drops. Having a lower voltage, the electric boilers will consume less power than at full voltage (Power is voltage squared demultiplied by resistance/impedance). However, some consumers (switching power supplies) will just take a higher amperage, and the voltage goes even lower.
For this kind of fast gradients, the gas turbines are used as "fast switching" sources. A gas turbine is able to ramp from - let's say 10% to 90% rated power - in the space of a couple of seconds (for comparation, a hydroelectric big plant will ramp the same in a couple of minutes or more). Ramping back might be even slower on baseload power plants (unless they choose to vent already heated steam). Yet, electricity generated from natural gas is expensive (much more so compared to coal or hydro). Also, the nuclear plants (while they might be able to ramp quickly on and off) are NOT designed to do so, and are not tested to do so. They are just slow-ramping, base line power plants.
As such, the electricity company hopes to supplement some of this "fast switching", expensive electricity with your car's battery.
I don't know, I'll search Wikipedia for it
Books in a humid environment have a reduced lifespan.
Do not compare old manuscripts (handwritten on leather) to recent books. Also, do not compare the longevity of 17th century paper-printed books (kept in controlled temperature, humidity and lack of oxygen) to current books. And once more, do not compare the longevity of the 50 years old books you have in your house to books exposed to extreme heat, humidity and maybe from time to time a little flood.
CDs aren't yet dead, and the mp3 format is older than a decade.
So yes, it will take a decade for downloaded videos to kill DVDs and high definition alternatives
Some of the traffic in Europe is taken over by companies and drivers from ex-Warszaw block countries (like the Czech driver in the article)
This is funny :D
You've made my day
Yes, I'd like a screen readable in sunlight and with a resolution of 1200x900 pixels (in black and white, even if the resolution in color is closer to 400x300). A waterproof laptop would be great.
As AT&T answered to their customers? Or take any other monopolist, and see how they one day answered to their customers.
Monopols answer only to the government, and in these times the US government doesn't seem to want answers from Microsoft
RIAA is a puppet, paid by the big music companies. It doesn't have much power, and no power over what their masters allow it.
RIAA's power will decrease after this.
How about radio play, talk shows? I think it will be business as usual - if the other big music corporations will ignore this. If they will lobby the radio stations, it might be possible that EMI loses some air time.
In Europe, Romania :D
Using Vodafone
$11 for a plan with 50 free minutes, 20 minutes bonus from plan signup, 30 minutes for old customer. $0.07 for SMS, free voice mail (but I've disabled it), free caller id, free to receive calls and messages. I don't use MMS, so I don't know about their price.
I have months when I use double the minutes, and months when I use half of them. They roll on the next month
Also, tanks are built to fight tanks. Their top armour is shamefully thin (this goes for russian AND american tanks). This is the reason recent anti-tank rockets are fired upward, and will attack the tank in a descending trajectory (hitting the top armour, not the front or side armour).
Not to mention that battery performance depends on temperature - a charge will support the device more in a warm climate than out in the cold
Solutions exist to this problem - but they are rather small, expensive, not always applicable, or not very efficient. Research is needed in current fields, and maybe new fields will get us revolutionary solutions (or just old, working solutions)
Earth is indeed a zero sum game - ignoring some of the things won't make them go away.
Nuclear power don't come from our sun (but from other stars, long gone).
Earth is a zero sum game - the energy (solar and wind, let's say) that we don't use will go in other parts, and be used there. Existing fossil resources are consumed, while others are created. Solar energy comes and goes (or else Earth will heat ad infinitum or cool to zero). Cosmic dust is attracted to Earth day by day.
But in the end, we can only use what we have here
Hydrogen generation and consumption on site is inefficient - however, so are other methods of storage (like high/low water reservoirs).
However, if the heat obtained in the hydrogen to electricity generation is usable, the efficiency goes up quite a bit. Some industries needs both electricity and heat, so this could be a solution if energy rates differ enough from day to night
While general energy costs have gone slightly up in the last period.
New manufacturing, economies of scale and other factors helped renewable energy. This (I hope) will continue in the future.
Yet, when the cost of energy goes up, the cost of manufacturing goes up, the cost of transportation goes up and so on. And, even if the petrol cost have risen sharply, electricity is mostly generated from coal (I have no idea which way the coal cost went lately)
"This means you can capture power at night from ambient light (streetlamps)"
Solar powered flashlight?
Using a 1 square meter solar panel, you could get at most 0.4W from the light of one 1000W lightbulb at 25 meters away.
Amazingly, you can't easily move electricity from USA to Europe, or from Australia to Africa. Until huge (and I mean HUGE) electricity transport lines are laid out, and huge transformation stations are up and working, you can't transmit electricity.
For low scale energy consumption, using local storage is probably cheaper
Interesting is that, being on grid is cheaper for energy sufficiency than being off-grid. Even if you have your production capability, the storage (battery banks) is expensive. Being connected to grid for those no sun, no wind, and so on moments is cheaper than operating a battery bank in the basement