[USMA:41210] RE: LTE - Hybrid & Diesel Economy Math

[brian]

With all due respect to the hybrid jocks on this list, give me an efficient and modern turbodiesel every time.   51mpg, that's fine.  But diesels do just as well, and most of the time better. 

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Subject: [USMA:41209] RE: LTE - Hybrid & Diesel Economy Math
From: "STANLEY DOORE" <[EMAIL PROTECTED]>
Date: Tue, June 24, 2008 8:13 am
To: "U.S. Metric Association" <usma@colostate.edu>

    I understand that the cost of electrical propulsion cost for cars is now about one quarter of that for gasoline and diesel only vehicles.  And, as batteries are expected to improve, the difference will be even greater.  Toyota is expected to have a plug-in option next year and  li-ion batteries will increase the range.  I recently got 51.3 mpg on a recent tank of regular gasoline (473 miles).  Also, electricity can be generated from many different energy sources.

    Stan Doore

 

 

----- Original Message -----

From: [EMAIL PROTECTED] href="" target=_blank mce_href="mailto:[EMAIL PROTECTED]">Bill Potts

To: [EMAIL PROTECTED] href="" target=_blank mce_href="mailto:usma@colostate.edu">U.S. Metric Association

Sent: Monday, June 23, 2008 3:34 PM

Subject: [USMA:41203] RE: LTE - Hybrid & Diesel Economy Math

Regarding your last paragraph, Stan, we mustn't forget that plugging in and charging doesn't come free. You need to add that component of your electricity bill to your total cost.

 

And, from an environmental point of view, we must remember that most of the electricity in the U.S. is generated using fossil fuels (particularly coal). Canada is, of course, much better placed in that respect, in that most of their electricity is produced by hydroelectric power stations (which, although they don't pollute, do create their own fairly serious environmental problems).

 

Bill

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Bill Potts
Roseville, CA
http://metric1.org [SI Navigator]

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From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of STANLEY DOORE
Sent: Monday, June 23, 2008 11:17
To: U.S. Metric Association
Subject: [USMA:41201] LTE - Hybrid & Diesel Economy Math

 

    "Hybrids and diesels save, but math can be tricky" in the June 20 issue of The Washington Times explains various elements to be considered in evaluating auto purchases; however, they are not easy to use.

 

    Consider standardizing on some basic numbers.  For example, use 10,000 km and 20,000 km (6200 miles and 12,400 miles respectively) driven per year.  Then use the price of $4.00/gallon for gasoline and $4.50 for diesel fuel to drive those distances.    These round numbers simplify the math and will help people to understand the differences in savings quicker.

 

    The keys are total distance driven, fuel used and the cost of fuel.  Although miles per gallon or  km/L  has increased for new diesel fuel vehicles, it doesn't tell the full story about the additional cost compared with gasoline hybrids.

 

    Hybrids with electric drive provide added torque and better fuel economy than new diesel powered vehicles.  And with an electric plug-in option, hybrids will have even better fuel economy compared with diesel only vehicles.

 

Stan Doore