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Beyond the Volt?

10 messages,  Last post on Aug 20, 2009 at 7:32 AM

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What is this discussion about? Chevrolet Volt, Electric Cars, Sedan

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#4 of 10 Re: Current technology VS pie in the sky (rant) [pf_flyer] by morin2 Mar 02, 2009 (3:21 pm)
Replying to: pf_flyer (Mar 02, 2009 12:40 pm) Although I live in the shadow of a nuke plant, our electricity comes from a dirty coal plant. So if I bought a Volt, or any other plug-in, that means more coal burned and noxious emissions and waste, more coal mined in the least sustainable way from hilltops in WV and eastern KY, more pollution from that mining.   This is the "green" solution? Replies to this message: chadx (Mar 04, 2009 1:28 pm)
#5 of 10 Re: Current technology VS pie in the sky (rant) [morin2] by chadx Mar 04, 2009 (1:28 pm)
Replying to: morin2 (Mar 02, 2009 3:21 pm) Quote: "our electricity comes from a dirty coal plant. So if I bought a Volt, or any other plug-in, that means more coal burned and noxious emissions and waste, more coal mined in the least sustainable way from hilltops in WV and eastern KY, more pollution from that mining. "    This is the "green" solution? Keep in mind that electricity from even the dirtiest sources (coal plants) produces less polution than the most efficient gasoline powered car when talking "well to wheel" numbers. So yes, this solution is more "green" than driving any gasoline engine. Now consider the amount of renewable resources coming online that produce electricity, and the potential for more in the future, and it just gets better from there.
#6 of 10 Re: Current technology VS pie in the sky (rant) [pf_flyer] by chadx Mar 04, 2009 (1:31 pm)
Replying to: pf_flyer (Mar 02, 2009 12:40 pm) Quote:"It bothers me a bit that in their zeal for EV's, some proponents act as if this capacity is sitting there waiting to be tapped. "   In many places, it is. Demand is so much less in the evenings that the industry has trouble dealing with the wide variance between daytime consumption and overnight. Electric vehicles that draw from the grid after a certain time would actually benefit the grid in evening out distribution, especially from sources than can not easily dump the extra power made around the clock, like wind farms.
#7 of 10 Re: Current technology VS pie in the sky (rant) [wozerd] by chadx Mar 04, 2009 (2:00 pm)
Replying to: wozerd (Mar 02, 2009 12:36 pm) Hi. I'll do my best to give you my opinion since you asked. And there are a few inaccuracies in your post I'd like to address as well.   "I have read, more than once and heard that if we were to convert every square inch of available space to solar and/or wind power, we still couldn't meet more than 20% of this countrys energy needs. "   That is wildly inaccurate. There are many renewable sources that could easily supply the entire country with plenty of power...even more so if people would just conserve a little bit. One example are the parabolic reflectors that heat the steam tubes to run steam turbines. This method has been in use for years and is quite efficient. Scaling estimates show the desert land in Nevada has enough sun and space (a few hundred square miles would be needed) to supply enough for much of the US.   The main problem would be the backbone and transport to the grid. That is the main issue with many renewable sources, though it's getting much better with investments continuing. Small town around the country are putting up a single 2.5 megawatt wind turbine and creating a town electric company to supply local renewable energy to entire townships. Big wind farms keep expanding. Households could easily supply 100% of their own electricity with combinations of solar panels, wind turbines, smart building designs, and conservation.   "California already has a problem with brown outs when everyone kicks on the home air conditioners. Whats going to happen when everyone gets home from work and plugs in ther Chevy Volt at 5PM? "   That would be easily solved with a timer so the car recharge automatically starts to draw later in the evening as demand decreases.   "How far can you go in a Chevy Volt? What if you want to take a 600 mile trip? What do you do, stop and plug it in for 4 hours? "   Chevy Volts will have unlimited mileage because they have a generator backup that kicks in. The only way you get stranded anywhere, with one, is the same with a current automobile...you don't keep gas in the tank.   " Imagine this: Your driving along on the expressway, the volt meter shows you are getting low. ...you pull up to a long rack...Using an electric hoist, he lifts out the battery pack, swings it over to an open slot in the rack, sides it onto the rack rollers and shoves it back with a clunk. ..."   Not a new idea. That has been proposed since the discussions of electric cars have been around and there are even prototypes. It's a matter of chicken and the egg. As you mention, someone has to come up with a design (preferably a group of several different manufacturers) and make a standard. Then everyone can adhere to it and all electric stations (vs gas stations) can use one exchange system. It will take building out the infrastructure. It all can be done, but will take time and investment. Investment capital is hard to come by in a recession, so it may be a while.   " A plain old, current technology battery pack and one, two or four current technology electric motors could be installed in an existing body vehicle, take you at least 100 miles and be-- of all things-- PRACTICAL!! And, it wouldn't cost $40K or require years and millions of dollars worth of R & D. "   I'm not sure it's that simple...or cheap. Look at the battery packs that you add to a Prius. They cost around $10,000 plus installation. Add that to the cost of a new prius, say $25,000, and now you are driving around a $35,000 prius that will get you about 40 miles down the road on electric only. That's on current battery technology. I don't think it's as cheap as you think to get 100+ miles of range with reasonable driving speed, particularly in any "existing body vehicle". To get that range takes a specific combination of things including large enough electric motor, large enough batter packs, special designs (aerodynamics, light weight materials, etc.). Often times to get the range, the top speed has to be reduced as well. Want to do range, speed, AND a large comfortable vehicle? Then your costs skyrocket and you'll be well over your $40,000 mark and yes, years of R&D.   "What's stopping this from happening? Technology? No-- we have it. Cost? The gas station owners will see the writing on the wall and invest in the "pack rack" and charging system. Just like they invested in gas pumps and storage tanks out in front of their blacksmith shops in the early 1900's.   Technology is there but consumers have to be willing to buy it and manufacturers have to be able to sell it for a profit and recoup the millions of R&D and venture capital invested (which there isn't any of right now). Also, it has to be cost prohibitive to use the existing fuel types and with gas prices back down, no one cares about mileage. Well, they do, but they aren't willing to pay for it unless the break even point is one or two years. At these temporarily cheap gas prices, there is, unfortunately, no incentive for manufatures or consumers. It's nice that all of us want to be green, but when it comes down to it, not enough of us are willing to pay more for it. So until costs (both dollars and environmental costs) of using gasoline, coal, etc. are too steap to pay, don't expect too many changes.
#8 of 10 From today's issue of AutoWeek... by hpmctorque Mar 13, 2009 (1:49 am)
"Battery breakthrough set to accelerate electric-car development   By GREG KABLE    A picture of General Motors engineers prepare a lithium-ion battery pack for testing. General Motors engineers prepare a lithium-ion battery pack for testing.A team of scientists working at the Massachusetts Institute of Technology are claiming a significant breakthrough in recharging times for lithium-ion batteries.   According to findings published in the scientific journal Nature, MIT researchers Byoungwoo Kang and Gerbrand Ceder have unlocked the potential of lithium-ion batteries by patenting a unique process which is claimed to allow a typical laptop power pack to be fully recharged in less than a minute--an improvement in recharging performance of roughly 90 percent over existing lithium-ion batteries.   Lithium-ion batteries generate electric current via the flow of lithium ions across an electrolyte, from an electrode to a cathode. Recharging them effectively reverses this process; lithium ions are sent from the cathode back to electrode.   The recharge time of lithium-ion batteries in use today is limited by how quickly the lithium ions pass through the electrolyte.   The process being championed by Kang and Ceder sees the lithium ions used in the cathode coated in lithium-phosphate glass to help speed up the time it takes for the ions to pass from cathode to electrode. Lithium-phosphate glass is a highly efficient lithium conductor, subsequently helping to accelerate the recharging process.   Ceder says the new process creates "perfectly sized tunnels for lithium to move through." He adds, "We saw that we could reach ridiculously fast charging rates."   Improving recharging times has long been considered the route to making hybrid drive systems more efficient. By taking advantage of the process developed by Kang and Ceder, lithium-ion batteries could be recharged in a matter of minutes via the gasoline engine and/or during braking while on the move. It also could make electric vehicles much more practical by extending their range and reducing the amount of time they need to be plugged in to external charging sources."
#9 of 10 From today's issue of AutoWeek... by hpmctorque Mar 13, 2009 (1:50 am)
Battery breakthrough set to accelerate electric-car development   By GREG KABLE    "A picture of General Motors engineers prepare a lithium-ion battery pack for testing. General Motors engineers prepare a lithium-ion battery pack for testing.A team of scientists working at the Massachusetts Institute of Technology are claiming a significant breakthrough in recharging times for lithium-ion batteries.   According to findings published in the scientific journal Nature, MIT researchers Byoungwoo Kang and Gerbrand Ceder have unlocked the potential of lithium-ion batteries by patenting a unique process which is claimed to allow a typical laptop power pack to be fully recharged in less than a minute--an improvement in recharging performance of roughly 90 percent over existing lithium-ion batteries.   Lithium-ion batteries generate electric current via the flow of lithium ions across an electrolyte, from an electrode to a cathode. Recharging them effectively reverses this process; lithium ions are sent from the cathode back to electrode.   The recharge time of lithium-ion batteries in use today is limited by how quickly the lithium ions pass through the electrolyte.   The process being championed by Kang and Ceder sees the lithium ions used in the cathode coated in lithium-phosphate glass to help speed up the time it takes for the ions to pass from cathode to electrode. Lithium-phosphate glass is a highly efficient lithium conductor, subsequently helping to accelerate the recharging process.   Ceder says the new process creates "perfectly sized tunnels for lithium to move through." He adds, "We saw that we could reach ridiculously fast charging rates."   Improving recharging times has long been considered the route to making hybrid drive systems more efficient. By taking advantage of the process developed by Kang and Ceder, lithium-ion batteries could be recharged in a matter of minutes via the gasoline engine and/or during braking while on the move. It also could make electric vehicles much more practical by extending their range and reducing the amount of time they need to be plugged in to external charging sources."
#10 of 10 Very cool future from Ford electric cars by larsb Aug 20, 2009 (7:32 am)
This is very cool   Ford has come up with a smart new system that enables drivers to tell their hybrid car precisely when and how long to charge from the grid—potentially helping you to save money on electricity.

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