You're forgetting to add the cost of replacement batteries for the
elec, generally considered to be every 5 years. Less if you use it
too much or too little.
Optimal usage of my liths gets me a year till I'm down to 80% or less
usage. NiMH last longer but still no more than 2 years till I'm under
the 80% mark. On the lith in my impact driver that I used daily for
awhile I was buying new batts every 4-6 months. That's full charge in
the morning, swap it out at lunch with under 10%. 2 batts a day, 21
days on 7 days off.
BTW Dewalt stood up the best to this abuse. Of the 25 guys on the
site doing that job we(they, I used dewalt exclusively) probably
tried every cordless tool maker out there. Below -40 leave the liths
in the tool room. NiMH only. Hard use seemed to warm them up, but the
first 5 min was kinda pathetic. ;o) not that I moved that fast for
the first 5 min either at those temps.
At 06:50 PM 2/19/2012, you wrote:
True enough, but only by ~$60/year or so. Chain maintenance and such
would be common between the two, and a good cleanable filter would
amortize readily over the life of the bike, down to a fractional
portion of a fraction of a penny per mile.
My own bike gets 43 mpg, and local fuel price is closer to $3.59 for
premium. That would produce a cost difference of ~$700 per year.
$760 with differential maintenance. Even accounting for the cheap
price I paid for mine, $1600, and the incentivized price of the bike
of $7500, I'm down to a payback of ~7.75 years.
Kurt
On Feb 19, 2012 9:38 PM, "Jeremy Kindy"
<<mailto:[email protected]>[email protected]> wrote:
Kurt,
The oil, filter, etc (extra maintenance of the gas bike) would
decrease the difference even more.
Jeremy
On Sun, Feb 19, 2012 at 5:31 PM, Kurt Nolte
<<mailto:[email protected]>[email protected]> wrote:
Well, 70 miles on $3.29 worth of gas is 4.7c per mile. The 6kWh
battery pack of an Empulse 6.0 would cost ME $0.45, so 60 miles on
$0.45 of electricity for .75c per mile.
I will travel an average of 28 miles per day, if you count the days
I don't ride, for a calculated total of 10220 miles per year. @
$3.29 gas and 70mpg I will use 146 gallons of gasoline and $480.34.
With the electric bike and power prices of $0.15/kWh and 60 miles
per charge I will consume 170 charge cycles and $153.3.
Comparing NEW to NEW, brand new MSRP on a Ninja 250r is $4200. MSRP
on the Empulse is $9995 (unsubsidized). With the spread, it would
take 16 years to pay it back on static prices for fuel and
electricity (disregarding oil, filters and such for engine
maintenance). If you take the federal and state subsidies, the
Empulse comes down to ~$7k, which cuts that "payback" in half.
You'd have to be in it for the long haul to save money, I agree.
It'd still be worth it to me to not have to stop and fill up on my
commuter duty bike. :p
-Kurt
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Abbotsford, BC, Canada
VA7PDP
2001 PT Cruiser
83 450 Honda Nighthawk
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