Posted by news on July 16, 2012, 1:10 am
On Sun, 15 Jul 2012 16:00:46 -0400, "Jim Wilkins"
Sustaining 0.1hp indefinitely means you can run a small laptop or a
netbook plus a cable or DSL modem for as long as you can manage the
pedals. That could be useful, but it's not enough for the original
poster to continue on with thoughts of "selling power back to the
For example, my Dell dual core AMD laptop uses 42 watts or 80VA when
the battery is fully charged. That goes up about 50% if running the
laptop and charging the battery at the same time (figures from a
Posted by Winston on July 16, 2012, 4:08 am
(At my peak of fitness, I could generate 70 W for about 30 minutes
then I was *quite* finished.)
Posted by Vaughn on July 16, 2012, 11:43 am
On 7/16/2012 12:08 AM, Winston wrote:
That implies that in a mere 28.6 hours you could generate a whole kW/h
of power, and (at .15 per Kw/h) it would only take 190 hours to generate
one dollar's worth of electricity.
Assuming that you could cobble all the equipment together for $00, and
you had no maintenance or cooling costs and 100% efficiency, you would
break even on your investment in a mere 95,238 hours of peddling.
This idea is looking better and better!
Posted by Jim Wilkins on July 16, 2012, 11:51 am
The payback period is a lot shorter if you can delete the gym
Posted by Winston on July 16, 2012, 1:54 pm
Jim Wilkins wrote:
I did it by *losing* 0.1 kWhr/hr.
So it only cost me 1.4c to exercise for 1/2 Hr using
I'll make it up in volume. :)