See Gizmag's coverage of CES 2010
The FABLABHOUSE entry from Instituto de Arquitectura Avanzada de Cataluna is shaped for op... Solar Decathlon hits the road to catch some Spanish sun
The Infinitas by Schopfer Yachts ... a unique design just waiting to take shape - 300ft lo... Dream boat: Schopfer Yachts 300ft Infinitas
Berlin in the present day Historical WWII imagery now available in Google Earth
A 50-inch display is able to detect up to sixteen fingers simultaneously Displax 'skin' turns virtually any surface into multi-touch display
Roxxxy the world-first sex robot comes with her own personality matched to yours. She talk... Roxxxy the US$7,000 companion/sex robot (NSFW)
MORE TOP STORIES »
URBAN TRANSPORT

The Pedal-A-Watt Stationary Bike Power Generator: create energy and get fit

By Jude Garvey

20:10 November 24, 2009 PST

The Pedal-A-Watt and, inset, connected to a bike and voltmeter to show how much power is b...

The Pedal-A-Watt and, inset, connected to a bike and voltmeter to show how much power is being generated

As people the world over continue to search for renewable energy sources, innovative and interesting ideas for generating power are constantly being devised. Those interested in keeping fit and producing power at the same time might be interested in this unique product – the Pedal-A-Watt. It converts your bicycle into a stationary bike and uses your pedal power to generate energy that can be stored in a power pack. An average rider can produce up to 200 watts – ride for an hour and you'll generate enough to power a 25 watt fluorescent light bulb for eight hours.

So how does it work? It’s not unlike the River gym concept - you simply attach your bicycle to the Pedal-A-Watt stand and start pedaling. The stand contains a generator which is spun by the movement of the bicycle’s back wheel. The generator is made of a spinning magnet within a coil of wire, as the magnet spins, electricity flows through the coil. The energy you generate can be used straight away or can be stored in a battery in the power pack for use later. The bicycle can be clipped into the stand in less than 30 seconds without having to remove the rear tire, and if you want to do some road riding you simply pop your bike out of the stand. Too easy.

How much pedaling will you need to do to charge average household appliances? If you pedal for two hours then you should produce around 400 watt-hours of power. That's enough to power a 200 watt television for two hours, or a 100 watt light bulb for four hours. A 20 watt laptop PC could be charged for 20 hours and a 15 watt fluorescent bulb for almost 27 hours.

An average adult rider could produce from 100 to 320 watts of power depending on their physical strength, stronger and fitter adults could create between 225 to 320 watts or more. The stand is best suited to bicycles in reasonable condition with 26 or 27 inch wheels, but can also work with wheels greater than 10 inches. It weighs 23 lbs and optional extras such as the cigarette lighter plug and 12 foot cable are also available.

The Pedal-A-Watt package has a lifetime warranty and can be purchased for US$399. That includes the bicycle stand, generator, 20 amp blocking diode, adjustment knob and instructions. The power pack is sold separately for US$365.95 and is suitable for household appliances up to 400 watts.

Via Convergence Tech

User Comments (3)
 

Funny that, we built a similar set-up for our college open day. :D

Same frame and everything!

http://www.flickr.com/photos/energylabdcu/4130568629/

comment

Shiny

- November 25, 2009 @ 04:11 am CST

Who comes up with this stuff?

@ $399 for the unit, I would have to pedal 2 hours a day for 30 YEARS for this to make financial sense.

Bicycling magazine did an interesting write-up of how similar units actually make sense for gyms, where they are in use for many hours each day, but for a normal person, this is absolutely useless.

comment

Shang

- November 25, 2009 @ 06:11 pm CST

@shang:

Consider those that pay over a thousand for a non-electricity-generating stationary bike, and this thing makes all kinds of sense.

Dan K

comment

Dan K

- December 2, 2009 @ 05:12 pm CST

RSS Feed for comments from this article RSS Feed for comments from all articles
Post a Comment

Login with your gizmag account:




Or Login with Facebook:


Connect

Related Articles Email this article to a friend

Just enter your friends and your email address into the form below ...




Privacy is safe with us because we have a strict privacy policy.

Recent popular articles in Urban Transport
Recent Comments