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Re: Toyolet prius efficiency
| Bucky | 24 Mar 2007 08:59 |
On Mar 23, 5:27 pm, isq...@gmail.com wrote:
> You are saying that the power plant that for example burns > diesel does so with more emissions than a diesel car does? it's quite possible that the amount of emissions produced by the power plant to produce the electricity to charge a Telsa car could be more than the emissions than a gasoline car.
> Nuclear plants produce relatively clean electricity > unless they blow up or the by products are disposed of improperly. ok, but you cannot choose your power source when you use electricity. The power sources all mixed in the electrical grid. And about 80% of U.S. power comes from coal, oil, and natural gas.
http://energy.cr.usgs.gov/energy/stats_ctry/Stat1.html
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| isquat@gmail.com | 24 Mar 2007 00:27 |
> On Mar 22, 8:43 am, isq...@gmail.com wrote: > [quoted text clipped - 6 lines] > produces more emissions than a hybrid because the electricity is > generated by burning coal, natural gas, and oil. You are saying that the power plant that for example burns diesel does so with more emissions than a diesel car does? Nuclear plants produce relatively clean electricity unless they blow up or the by products are disposed of improperly. It's definitely easier to control the waste from immovable plant than from hundreds of millions of cars (some of which are even exempt from emissions testing in the US, and out of USA I bet some countries don't even have a requirement to test the cars as a part of an annual check).
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| Bucky | 23 Mar 2007 07:38 |
On Mar 22, 8:43 am, isq...@gmail.com wrote:
> The one I was next to the other day in a parking lot DID have > the gasoline engine idling so I don't see where you pulled the > 90% number out of. From the tesla marketing materials? > That one surely does not run the motor at idle. man, you are skeptical. Tesla? that's an all-electric. which probably produces more emissions than a hybrid because the electricity is generated by burning coal, natural gas, and oil.
"Emissions - 89 percent fewer smog-forming emissions than the average new car, exceeding the standards for a Super Ultra Low Emission Vehicle (SULEV)" http://www.hybridcars.com/compacts-sedans/toyota-prius-overview.html
The reason why hybrids can have near zero emissions is because they keep the engine running at peak efficiency as much as possible.
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| isquat@gmail.com | 22 Mar 2007 15:43 |
> It's true that the realistic mpg of Prius is about 45 mpg, which is > only about 30% better than the 35 mpg I get from my gasoline Civic. > But I think most people neglect the emissions benefit of hybrids: > typically 90% less than gasoline cars. And probably way more than that The one I was next to the other day in a parking lot DID have the gasoline engine idling so I don't see where you pulled the 90% number out of. From the tesla marketing materials? That one surely does not run the motor at idle.
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| Bucky | 22 Mar 2007 08:01 |
It's true that the realistic mpg of Prius is about 45 mpg, which is only about 30% better than the 35 mpg I get from my gasoline Civic. But I think most people neglect the emissions benefit of hybrids: typically 90% less than gasoline cars. And probably way more than that compared to a Hummer.
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| isquat@gmail.com | 21 Mar 2007 22:16 |
http://omidr.typepad.com/torque/2007/03/toyotas_prius_i.html
maybe fewer hybrid crap will be forced on our shoulders after all and Ed Markey would finally shut up? Did Canada sign Kyoto protocol?
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