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Posted by Pete Granzeau on June 13, 2008, 1:39 pm
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>
>>> What's the relationship cost per kWh power : cost per mile driven?
>>
>> I calculated the gas/electric equivalency at my off-peak rate a few
>> years ago when the first plug-in Prius modifications became available.
>> At my rate, which has since seen a slight increase, it was equivalent to
>> 70 cent/gallon gas. Since my electricity comes from coal I expect the
>> cost to increase dramatically over the next couple of years but even if
>> it doubles it will be equivalent to $1.40/gallon gas. My present
>> off-peak rate is .043/kwh. My electric co-op says they will "work with
>> me" on configuring my off-peak system to accommodate a plug-in vehicle
>> since there aren't any on their network now.
>>
>> The maximum all-electric range at the time I looked into this was 40
>> miles but I'd guess a practical range would be closer to 30 miles.
>> There wouldn't be a big advantage to a traveling salesperson who drives
>> 200 miles a day since there wouldn't be an opportunity to recharge.
>> Someone with a 30 mile or less round trip commute would save a bundle at
>> my current off-peak rate since they could recharge regularily.
>>
>>
>
>Our 24 hour rate (no off-peak metering) is $0.198 per kWh (and going up
>with NatGas), so sounds as if this translates to $3.50/gallon (and going
>up). Not so compelling here.
I don't believe it is possible to calculate the cost of electricity. The
rates change in summer, to start with. Furthermore, there is a fixed
charge for connection, and the rates depend on how many kwh are consumed
each month (so much for the first 800 kwh, a different rate for the
excess). I don't see any peak/off peak rates, other than seasonal.
How many kwh will it take to recharge a 2010 Prius which has been driven
200 miles? It may have used 3 to 5 gallons of gas in that same time.
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