Posted on 08/11/2009 6:43:58 PM PDT by SeekAndFind
In many states you pay a cheaper elec rate for the first amount on your bill and about double that for anything over the low amount they deem you should use.
I figured it with the higher number because the car battery charge would all be at the rate above your normal elec use.
Fraser, prototype, small production
runs.
I was off on a medical, when I could come back to work, they wouldn’t do work for them. They had been burned by a couple of company’s that left them holding the bag, when they went bankrupt.
They had let three people go, and I had to find something else.
My brother gets a break on electricity price because he converted to an all electric house.
Found it.http://www.nypost.com/seven//news/nationalnews/general_motors_volt_gets_230_miles_per_g_.htm
EPA might rewrite the rule, but the proposed test is what it is.
1. Calculate the number of Joules from battery storage it takes for the car to go the required distance at the required speed.
2. Using the value from step 1, calculate the total number of Joules (allowing for loss in transmission, charging, etc.) it requires from a power plant to charge that battery with those Joules from step 1.
3. Divide the result from step 2 by 1.3x 10^8 (the Joules per gallon of gasoline) to get the value in gallons of gasoline.
Presto! You're now comparing apples and apples.
I'll bet a dozen donuts that you will NOT get “230 MPG.” In fact, I suspect it will make most compact cars look pretty good.
If your vehicle is a plug-in hybrid, you can use the result from step 3 along the efficiency of the hybrid's IC power plant.
Of course, since this is allegedly about the environment, you could calculate the mass of “pollutants” produced at the power plant to create those Joules at step 3, vs. the “pollutants” produced by a comparable automobile for the same speed and distance. It might make the electric car look better. Maybe.
And, of course, we're not including the toxic products from building and disposing of the battery. We might need to add that our electric car's wastes.
Anybody see any holes in this?
Yes, coal is cheap and domestic, gasoline is expensive and imported.
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