Rather than focus on MPG, the focus should be on cost per mile or cost per 100 kilometers regardless of fuel.
Stan Doore From: [email protected] [mailto:[email protected]] On Behalf Of Ron Stone Sent: Wednesday, November 24, 2010 3:54 AM To: U.S. Metric Association Cc: U.S. Metric Association Subject: [USMA:48919] new fuel economy label under review by EPA Re: Re: Nissan Leaf a new fuel-eonomy label is under consideration by the EPA. http://www.epa.gov/fueleconomy/label.htm there is also a form to submit a comment to the EPA. Ron On Tue, Nov 23, 2010 at 11:58 PM, John Frewen-Lord <[email protected]> wrote: >From the link given below: "So, how does the EPA calculate mpg for an electric car? Nissan's presser says the EPA uses a formula where 33.7 kWhs are equivalent to one gallon of gasoline energy. Also, the EPA determined the Leaf's efficiency is 3.4 miles per kWh, another number you can easily beat while driving, as the driver info screen can prove. Since the Leaf has a 24 kWh battery pack and can go, officially, 73 miles, then, the EPA says, it could theoretically go 99 miles if it had a 33.7 kWh pack (and everything else about the car remained the same). Make sense?" In a word, no! It's a pity though, since the EPA had to design a new label, they didn't include metric equivalents. That would have (a) started on the road to getting those Americans who have never come across metric units more familiar with them, and (b) highlighted the absolute absurdity of making these conversions in the first place. The text from this article sure confused me until I read it for the third time. John F-L ----- Original Message ----- From: Pat Naughtin <mailto:[email protected]> To: U.S. Metric Association <mailto:[email protected]> Sent: Wednesday, November 24, 2010 4:19 AM Subject: [USMA:48916] Nissan Leaf Dear All, See http://www.autoblog.com/2010/11/22/nissan-leaf-snags-99-mpg-rating-on-official-epa-sticker Earlier I mentioned the cost of the "metric conversion" approach to metrication. I wonder how much this lot of metric conversion cost already and how much it will cost in the future. This car was most likely designed by Nissan in Japan, built wholly using metric units, particularly the millimetre, and then tested using joules, watts kilograms, and kilometres. One wonders whether one of the design goals was to get below 2 megajoules per kilometre. Finally, all the metric units have been hidden though the metric conversion processes to comply with the regulations of the Environmental Protection Agency in the USA. I ask again, "At what cost?" Cheers, Pat Naughtin Author of the ebook, Metrication Leaders Guide, see http://metricationmatters.com/MetricationLeadersGuideInfo.html Hear Pat speak at: http://www.youtube.com/watch?v=_lshRAPvPZY PO Box 305 Belmont 3216, Geelong, Australia Phone: 61 3 5241 2008 Metric system consultant, writer, and speaker, Pat Naughtin, has helped thousands of people and hundreds of companies upgrade to the modern metric system smoothly, quickly, and so economically that they now save thousands each year when buying, processing, or selling for their businesses. Pat provides services and resources for many different trades, crafts, and professions for commercial, industrial and government metrication leaders in Asia, Europe, and in the USA. Pat's clients include the Australian Government, Google, NASA, NIST, and the metric associations of Canada, the UK, and the USA. See http://www.metricationmatters.com <http://www.metricationmatters.com/> for more metrication information, contact Pat at [email protected] or to get the free 'Metrication matters' newsletter go to: http://www.metricationmatters.com/newsletter to subscribe. -- -------------------- Ron Stone ------------------------- disclaimers or other restrictions may apply to this message. ------------------------------------
