Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Cars in General
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 11-15-2007, 06:08 PM   #1
J-Ri
AF Enthusiast
 
J-Ri's Avatar
 
Join Date: Dec 2004
Location: Shellsburg, Iowa
Posts: 3,218
Thanks: 8
Thanked 1 Time in 1 Post
Interesting facts about 100% electric cars

A car that emits absolutely no pollution is great, right? What if you think about it like this:

More than 50% of electricity in the U.S. is generated from coal. Power plants are a major source of air pollution, with coal-fired power plants spewing 59% of total U.S. sulfur dioxide pollution and 18% of total nitrous oxides every year. Coal-fired power plants are also the largest polluter of toxic mercury pollution, largest contributor of hazardous air toxics, and release about 50% of particle pollution. Additionally, power plants release over 40% of total U.S. carbon dioxide emissions, a prime contributor to global warming. Power plants are second only to automobiles as the greatest source of NOx emissions. Coal-fired power plants are also the largest single source of sulfur dioxide (SO2), releasing about 2/3 of the total SO2 pollution each year.
The electrical generation from the coal power plant is 33% efficient

The power transmission from the plant to the users home/business is 92.8% efficient.

The charging efficency of the battery is between 71% and 91% depending on the rate of charge.

The effeciency of the electric motor is between 90% and 95%.

That puts the total efficiency at 19.6-26.5%. Not much better than a standard vehicle, right? Now take into account the tons of extra power that goes into the production of these huge batteries, as explained by Curtis73 here http://www.automotiveforums.com/vbul...d.php?t=750719.


Sources:
http://www.sierraclub.org/cleanair/factsheets/power.asp
http://www.unc.edu/~jrhester/policycoal.html
http://en.wikipedia.org/wiki/Electri...r_transmission
http://www.buchmann.ca/Chap4-page4.asp
http://www1.eere.energy.gov/industry...fs/mc-0382.pdf
__________________
'04 Cavalier coupe M/T 2.2 Ecotec
Supercharged 14 PSI boost, charge air cooler, 42# injectors
Tuned with HP Tuners
Poly engine/trans/control arm bushings
Self built and self programmed progressive methanol injection system
J-Ri is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Cars in General

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:00 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts