Monday, June 24, 2013

Can Exercise equipment be used to generate electricity?

best battery assist bicycle on the liberty stealth climber mountain bike is sold by liberty bikes in
best battery assist bicycle image



photoguy19


A lot of the aerobic equipment at the gym creates it's own electric current for the displays. Why can't this be wired into the system to assist with the electricity the gym uses?


Answer
While it could be done, it would probably take a hundred years to pay back the investment in the electric machinery it would take to recoup any energy from exercisers. Let's think it through...

A person exercising fairly hard can generate perhaps 300 Watts averaged over an hour. Lets say your generator is 70% efficient. That means 200 Watts per treadmill or bicycle - perhaps if there are 50 machines there are only 30% (15) being used at a time so 15 times 200 equals 3000Watts. 3000W*1 hour is 3kW hours which costs about $0.25 (a quarter) So your exercise generator system makes you $4.00 per day, assuming that 30% of the machines are in use 16 hours per day (which is really optimistic) Your system would make the bikes or treadmills more expensive and you would need to install equipment to be able to use that energy, lets optimistically say that adds an extra $100000 for 50 special bikes/treadmills and a battery inverter system and all the necessary wiring, etc... So it would take 25000 days or 68 years to pay back the added cost of machinery...based on the assumptions I made.

You can make different assumptions and write a report on it ;)

In Texas do you have to have a license to drive a gas powered scooter?




sum1sbabyd


I will be going to school at Stephen F. Austin next year and was wondering if I need a license to drive a gas powered scooter(like a vespa) on campus. I know they're allowed on the campus but I don't know if I have to have a license for one.


Answer
License and helmet in Texas. The alternative is electric bicycles pedal assist machine like the Schwinn Campus, and World. My commuter bicycle is the Schwinn Continental 30 volt battery pack really great to silently ride around. On the bike paths it embarrasses many high performance riders. Vespas Are not cheep any more and the two stroke motors are dirty running at least you still get some exercise with a bike.




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