http://www.kerrywong.com/2007/04/30/do-hybrid-cars-really-save-energy/ Thu, 02 Sep 2010 05:31:15 +0000 hourly 1 http://wordpress.org/?v=3.0.1 http://www.kerrywong.com/2007/04/30/do-hybrid-cars-really-save-energy/comment-page-1/#comment-36700 Dave Fri, 21 Aug 2009 20:14:18 +0000 http://dimension/2007/04/30/do-hybrid-cars-really-save-energy/#comment-36700 I applaud your article, but I would take your logic to its logical conclusion: From a purely energy standpoint, all aspects of producing the energy that goes into producing a vehicle must be considered for environmental and energy reasons. One must factor the cost of energy for the shell, mechanical aspects, etc. One must also consider that even though a hybrid car may get more "miles per gallon", it is done at the expense of lost energy somewhere else (where and HOW the energy is produced to power the batteries in the car). Also, if a gasoline engine (at 30% efficiency, as you mentioned) is used to create power in an automobile through electrical generation (only 90% efficient at best, as you mentioned) then there is another loss. You always lose energy when converting from one energy source to another. Moreover, one must compare "apples to apples", not "apples to oranges". If a hybrid's efficiency is gained by reducing the weight of an automobile, then that is paramount to "cheating" as one must use the SAME platform to test each power source for efficiency. Gotta go, but thanks again for your article. I applaud your article, but I would take your logic to its logical conclusion: From a purely energy standpoint, all aspects of producing the energy that goes into producing a vehicle must be considered for environmental and energy reasons. One must factor the cost of energy for the shell, mechanical aspects, etc. One must also consider that even though a hybrid car may get more “miles per gallon”, it is done at the expense of lost energy somewhere else (where and HOW the energy is produced to power the batteries in the car). Also, if a gasoline engine (at 30% efficiency, as you mentioned) is used to create power in an automobile through electrical generation (only 90% efficient at best, as you mentioned) then there is another loss. You always lose energy when converting from one energy source to another. Moreover, one must compare “apples to apples”, not “apples to oranges”. If a hybrid’s efficiency is gained by reducing the weight of an automobile, then that is paramount to “cheating” as one must use the SAME platform to test each power source for efficiency. Gotta go, but thanks again for your article.

]]> http://www.kerrywong.com/2007/04/30/do-hybrid-cars-really-save-energy/comment-page-1/#comment-25820 mobitronia Thu, 29 Jan 2009 06:57:43 +0000 http://dimension/2007/04/30/do-hybrid-cars-really-save-energy/#comment-25820 We should consider that hybrids is not about saving cash. It's all about the benefits of the environment, using less natural resources, less fuel, etc. Hybrids saves gas & energy, but not sure whether they can save money. We should consider that hybrids is not about saving cash. It’s all about the benefits of the environment, using less natural resources, less fuel, etc. Hybrids saves gas & energy, but not sure whether they can save money.

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