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Environment & Energy

kristopher

(29,798 posts)

4. A couple of your fundamental facts are not accurate.

Reply to madokie (Reply #3)

Sun Apr 28, 2013, 12:01 PM

Apr 2013

EV batteries are designed to be replaced when they can only be recharged to 80% or less of their original maximum capacity. That is expected to take at least 10 years under normal usage - most cars only last about 8 years.

The utilities pay different prices for electricity they need for different purposes. The power from storage that can be turned on/off extremely quickly is some of the most expensive power they need. It routinely costs up to $3.00/kwh IIRC.

Google this paper, it will tell you more about the market that V2G is destined to serve:
Frequency Regulation Basics and Trends
December 2004 Brendan J. Kirby

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Testing for V2G goes to next level [View all] kristopher Apr 2013 OP

What is in it for the owners of the EV's madokie Apr 2013 #1

1) Batteries are expected to outlast the cars by a wide margin kristopher Apr 2013 #2

I guess that would be assuming that the batteries madokie Apr 2013 #3

A couple of your fundamental facts are not accurate. kristopher Apr 2013 #4

Where do you get the 8 years part madokie Apr 2013 #5

20K avg /yr X 8 years = 160,000 miles. kristopher Apr 2013 #7

A 10 yr lifespan under normal usage, but not with V2G included NickB79 Apr 2013 #6

True. kristopher Apr 2013 #8