Put a few dozen in the gym and sell the power to the grid.

> clean electricity
Clean, compared to what?
Bicycle parts, alternators and 12-V batteries don't grow on trees.

Looks like someone thinks they can violate basic laws of thermodynamics. I hope people realize these incredible claims are indeed impossible. You can NOT power an entire house for a day after only pedaling for an hour. I don't care if you're Lance Armstrong with an overdose of steroids and cocaine... it's never going to work. Why make such a big claim that is so obviously false?

For working out this should be fine but it seems like a silly idea as a way of electricity production for poor families.
A decent workout might give you about 150Wh in 60 minutes which is enough to power a basic appliance such as a fridge for the same amount of time or a small TV for 3-4 hours. Even if you had a single 10W light it'll only stay on for 15 hours.
You also need about 550kCalories to generate this amount of electricity so the person doing the pedaling will need to eat more. When you're poor and maybe not even eating 2000kCal, you now need to consume 25% more calories if you wish to pedal for an hour. They are also going to get really hot doing this.
For $100 you can get a 50W solar power system with a decent long life battery plus a couple of lights and it can be done for less if you work out deals with manufactures and buy in bulk. You could also double the solar and battery capacity for $150.

I'm glad my dad didn't see anything like this when I was a kid...

Someone needs to review Physics 101. This is way off the rails. You might be able to charge a cell phone or tablet by pedaling for an hour. Please be more responsible.

Pedal power, that's what made the RFDS so successful, 1929, in memory of John Flynn.
As exercise, it has merit, as an energy source? only if needed to call the Flying Dr when; wind, sun, hydro, gas, coal, diesel and nuclear is unavailable.

Why not say how many kwh the bike produces in an hour? Instead of saying it will power your house for 24hrs... It wont. Not mine. We average about 20kwh/day. There is just no way this bike produce that much juice in a hour.

I always thought (relatively) that it was weird how clamp-on bike kits and solitary stations could only be moved at a certain speed to collect current'cy before gettin' all hot & bothered; back when I was a early-90's teenie-bopper doing volunteer lifeguard/spotter duty, I'd get free access to the entire old post gym on Fort Drum, man I used to make those pull-chain rowing machines roar'n'whizz...
If someone made a sliding-seat rowing machine version, I'd be all for it, especially one that was designed for more versatile generator/gearing upgrades.

a 120wp solar panel costs 100$ and a cheap lead acid battery is 50$. charging controllers are about 10$. 5 led bulbs are 25$. this is slavery: http://conan.wikia.com/wiki/Wheel_of_Pain