A calculation of the German version of the AAA, the ADAC, showed that the electric smart that is currently on the road, would actually create more CO2 per km than the combustion engine version, IF the power plant was solely coal based
This did not seem quite right, so I ran the numbers for the electric and non-electric versions of the MINI:
If you put the panels on your roof, they can dump energy into the electrical grid during peak load when it is most needed. You then charge your car at night, when the grid has excess capacity.
Plus you don't have to lug around the solar panels on your car all the time, so it will be lighter.
Lightner noted that "the study suggests the idle capacity of the electric power grid is an underutilized national asset that could be tapped to vastly reduce our dependence on foreign oil."
I've talked to people from EPRI (Electric Power Research Institute), who say that EVs charging off peak is a power companies wet dream.
It even makes thermal plants last longer, and more efficient.
Also, a large number of PHEVs would enable V2G (Vehicle to Grid) technology. In the near term, demand side V2G (charging time controlled by utility) would enable us to make considerately better use of the resources we have right now, by enabling us to stop using natural gas peaker plants. Longer term, fully bi-directional V2G (kWhs of energy moving in both directions) could allow for more efficient and practical use of renewable energy sources.
http://en.wikipedia.org/wiki/Vehicle-to-grid
If electric cars can be made to charge from ordinary outlets, isn't the infrastructure already there?
Absolutely not. At least in the US, electrical power distribution networks are already are at capacity, and are not even *close* to what they'd need to be:
Don't forget that most EV charging will be done off peak. So we can put millions of cars on the road today without making any changes.
I've seen this used in a local hospital, but I'm not sure how it has worked out. The one user I talked to (our nurse) indicated that they really liked the system.
If a hydrogen tanker cracks open on the highway, the fire department just has to stand around and watch until the stuff finishes leaking out. No fire hazard since the stuff rises away almost instantly.
I think that in general, peoples fear of H2 is disproportionate with the actual risk.
But isn't it true that H2 tends to self ignite when leaking out of small holes?
This car is powered by an AC Propulsion AC-150 power train http://www.acpropulsion.com/Products/AC_150.htm. That's what makes it fast. Notice that the powertrain was not made by them. The engine is a slightly modified VW 1.9L TDI diesel. The car's chassis is a K1 Attack with carbon fiber body panels which were donated.
There is really almost no design in this thing, these are all off the shelf parts that you could buy today, and put togeather tomorrow. Plus you would be safe in this car.
The down side is that you would half to sink a lot of money into this car to buy all of the components, this would be somewhere on the order of ~$140,000. That's really why there are not 1000's of these things on the road.
Re:"Several posts" on a few boards = "very" unstab
on
Xbox 360 Very Unstable
·
· Score: 1
Under no circumstance do I believe that the NT line is unstable except for third party crap.
Allchin Says NT is Cause of Many Unplanned Reboots - Product Development:
"The most common cause of unplanned reboots on Windows NT is, in fact, the core operating system. This revelation was made by Jim Allchin, senior vice president at Microsoft Corp., during a press conference here at Comdex Fall '99."
Clue: The people of the earth consumed 28 billion barrels of in one year while discovering only 8.5 billion barrels of oil to replace it.
I think that everybody knows that we are running out of oil.
Industrialization powered by oil caused this massive population increase. When the oil is only one half used up we are going to see "downsizing" as in massive die-off.
This would be true if you assume that there is no way to replace the oil that we are burning with other energy sources.
If you think that modern automobiles are getting close to their efficiency limit, then you've been looking the other way when people talk about TDI and hybrid cars.
Carnot's theorem states that No engine operating between two heat reservoirs can be more efficient than a Carnot engine operating between the same reservoirs.
This gives us an upper bound for the efficiency of an ICE powered car. You might be able to stretch it using a hybrid approach, but if your primary power source is the ICE, you still have a fundamental limit. Besides, the main argument is really my next comment.
I'm truly ashamed for people who think that hydrogen fuel cells will solve all of the world's fossil fuel problems. Sure, hydrogen fuel cells will make for extremely low exhaust cars, longer laptop battery life, etc, but they won't solve the fossil fuel crisis.
I always though that the idea behind switching to fuel cell or battry powered cars was to make them power source agnostic. If you have a nation running on fuel cell cars, you can power them with any fuel you want. So, if Saudi oil is cheap today and renewable power is not ready, you can use that. When you have better options, you can switch the source of the hydrogen from oil to wind overnight and the entire infrastructure is already in place.
As an added bonus, you can lower the pollution of the whole US fleet, just by improving the emissions of a single power plant. Think of how many 1970-1990 cars are still on the road, many with failed emissions systems spewing smog into the atmosphere. That is the idea behind so called "ILEV"s (Inherently Low Emissions Vehicles).
Having said all that, I think that there is too much hype around hydrogen today. We should focus on stopping all the new coal fired power plants that are scheduled to come on line over the next 30 years from starting. This could do more to help with air quality then switching the US fleet to fuelcell cars.
I'm sure this is a rhetorical question, but if you are really looking for a very good free (as in beer) CAD program, you might want to check out QCad. They make it for windows as well, but you are required to pay for it on that platform.
Burners compressing without my knowledge? Yes? No?
I'm sorry I did not post this to the journal area, but the discussion there had been archived.
Do you think the Radio Shack employee may have been thinking about DVD Video recorders? Other then that, DVD burners do not compress data that they write to the media. I have burned DVDs that contain mostly zeros, and they still cut out to the edge of the disk.
Slashdot Mirror
A calculation of the German version of the AAA, the ADAC, showed that the electric smart that is currently on the road, would actually create more CO2 per km than the combustion engine version, IF the power plant was solely coal based
This did not seem quite right, so I ran the numbers for the electric and non-electric versions of the MINI:
Electric Mini: 2.095 lbs CO2 * .233 kWh/mile == .488 lbs CO2/mile
Gas Mini: 13,400 lbs / 15000 Miles == .893 lbs CO2/mile
So it looks like a Gas MINI produces about twice the CO2 per mile... In the absolute worst case (For the electric version).
Thanks!
Surface area of a car is 1.5 square meters.
Why would you put the solar panels on the car?
If you put the panels on your roof, they can dump energy into the electrical grid during peak load when it is most needed. You then charge your car at night, when the grid has excess capacity.
Plus you don't have to lug around the solar panels on your car all the time, so it will be lighter.
Thanks!
Here is a report which has been posted by others in this story DOE Study: Off-Peak Production from US Grid Could Support 184.8 Million Plug-In Hybrids
This is a quote from one of the linked articles:
Lightner noted that "the study suggests the idle capacity of the electric power grid is an underutilized national asset that could be tapped to vastly reduce our dependence on foreign oil."
I've talked to people from EPRI (Electric Power Research Institute), who say that EVs charging off peak is a power companies wet dream. It even makes thermal plants last longer, and more efficient.
Also, a large number of PHEVs would enable V2G (Vehicle to Grid) technology. In the near term, demand side V2G (charging time controlled by utility) would enable us to make considerately better use of the resources we have right now, by enabling us to stop using natural gas peaker plants. Longer term, fully bi-directional V2G (kWhs of energy moving in both directions) could allow for more efficient and practical use of renewable energy sources. http://en.wikipedia.org/wiki/Vehicle-to-grid
Thanks!
If electric cars can be made to charge from ordinary outlets, isn't the infrastructure already there?
Absolutely not. At least in the US, electrical power distribution networks are already are at capacity, and are not even *close* to what they'd need to be:
Don't forget that most EV charging will be done off peak. So we can put millions of cars on the road today without making any changes.
Thanks!
I hope it's not publicly funded.
http://pbfcomics.com/?cid=PBF160-The_Dreamcatcher3000.gif
http://www.ensuretech.com/products/demo/demo.html
I've seen this used in a local hospital, but I'm not sure how it has worked out. The one user I talked to (our nurse) indicated that they really liked the system.
If a hydrogen tanker cracks open on the highway, the fire department just has to stand around and watch until the stuff finishes leaking out. No fire hazard since the stuff rises away almost instantly. I think that in general, peoples fear of H2 is disproportionate with the actual risk. But isn't it true that H2 tends to self ignite when leaking out of small holes?
Wow, that's neat. Do you have a link to this with more information? Thanks!
This car is powered by an AC Propulsion AC-150 power train http://www.acpropulsion.com/Products/AC_150.htm. That's what makes it fast. Notice that the powertrain was not made by them. The engine is a slightly modified VW 1.9L TDI diesel. The car's chassis is a K1 Attack with carbon fiber body panels which were donated.
There is really almost no design in this thing, these are all off the shelf parts that you could buy today, and put togeather tomorrow. Plus you would be safe in this car.
The down side is that you would half to sink a lot of money into this car to buy all of the components, this would be somewhere on the order of ~$140,000. That's really why there are not 1000's of these things on the road.
Perhaps NT is a bad example.
http://www.looksmartcomputers.com/p/articles/mi_m0 FOX/is_21_4/ai_60301573
Allchin Says NT is Cause of Many Unplanned Reboots - Product Development:
Looks like http://www.internetpulse.com/ indicates that Level3 had a recent outage.
Survive a nuclear blast indeed :)
You can find a torrent for this file here: DartMail.wmv.torrent
You can find a torrent for the video here: Park-all.lowbw.mpg.torrent
Also, what about GPGRelay?
I don't get it, why is the parent post funny?
....and a whole 128k up!! :)
www.taperesources-store.com This is just the first link I found on froogle, they are not listed in Pricewatch yet.
Solar
Or perhaps more realistic approach:Pebble Bed Nuclear
Here is an option to switch to mostly renewable power
This gives us an upper bound for the efficiency of an ICE powered car. You might be able to stretch it using a hybrid approach, but if your primary power source is the ICE, you still have a fundamental limit. Besides, the main argument is really my next comment.
I always though that the idea behind switching to fuel cell or battry powered cars was to make them power source agnostic. If you have a nation running on fuel cell cars, you can power them with any fuel you want. So, if Saudi oil is cheap today and renewable power is not ready, you can use that. When you have better options, you can switch the source of the hydrogen from oil to wind overnight and the entire infrastructure is already in place.
As an added bonus, you can lower the pollution of the whole US fleet, just by improving the emissions of a single power plant. Think of how many 1970-1990 cars are still on the road, many with failed emissions systems spewing smog into the atmosphere. That is the idea behind so called "ILEV"s (Inherently Low Emissions Vehicles).
Having said all that, I think that there is too much hype around hydrogen today. We should focus on stopping all the new coal fired power plants that are scheduled to come on line over the next 30 years from starting. This could do more to help with air quality then switching the US fleet to fuelcell cars.
You can find a torrent for the big video 2004Apr23_trip.torrent
I'm sorry I did not post this to the journal area, but the discussion there had been archived.
Do you think the Radio Shack employee may have been thinking about DVD Video recorders? Other then that, DVD burners do not compress data that they write to the media. I have burned DVDs that contain mostly zeros, and they still cut out to the edge of the disk.
This project takes the SRPMS from RHEL, and compiles them into a completely unsupported distro :)
This just opens the door for a belt clip with an active RFID jammer to be marketed.