View Single Post
Old 07-01-2013, 07:51 PM   #19 (permalink)
sheepdog 44
.
 
Join Date: Dec 2011
Location: Salt Lake valley Utah
Posts: 923
Thanks: 114
Thanked 397 Times in 224 Posts
Quote:
Originally Posted by ConnClark View Post
Average house hold electrical usage a year is 11,280 kWh. That equates to about 31 kW hours a day

So driving an electric car for about one hour a day will double a household's energy usage.

How do you propose to increase electrical efficiency in home to cover that?
A Leaf uses a 24 kwh pack for about 71miles of range. Thats 24kwh + 31kwh = 59 kw hours of total energy usage. Thats a 90% increase, with driving 71 miles a day which is a ridiculous commute over 2 hours.

A compact gas car with reasonable efficiency gets 35mpg average. A gallon of gas contains 36.6kwh, and the car would use 2 gallons for the 71 miles. Thats a gas use of 73.1 kw + 31 kwh of the house = 104.1 kw hours of energy use, a 335% increase from the energy used to power your home, and a 76% increase in energy use from the combined energy of driving an electric car and powering a house!

Gas and Coal are both finite fossil fuel power sources. Where will the efficiency come from? from not burning twice as much energy in gasoline as can be obtained from the electrical grid. From using half as much fossil fuels from a coal plant, polluting half as much as a gas car.

There are valid arguments against Electric Vehicles that i agree with, even being an advocate for EV's. Price, battery pack lifespan, better use of pure EV batteries in many hybrids with small packs to displace the most gasoline used.
__________________
I try to be helpful. I'm not an expert.

Last edited by sheepdog 44; 07-01-2013 at 08:01 PM..
  Reply With Quote
The Following 4 Users Say Thank You to sheepdog 44 For This Useful Post:
Frank Lee (07-01-2013), IamIan (07-03-2013), RedDevil (07-02-2013), ShadeTreeMech (11-28-2013)