Pedal and light up 100 huts

Vivek is in the news again with a project based on one of my alternators. Quite a few people use them like this to charge batteries with human power, but I do have to wonder where the hours come from in the equation:

Energy (watt hours) = Power (watts) x Time (hours).

A good way to keep fit anyway.

About hugh

I live off-grid in NW Scotland and have spent my life playing with wind turbines. I also love small hydros. Hands on renewable energy is my thing and I like to learn and to share my experiences.
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One Response to Pedal and light up 100 huts

  1. Vivek says:

    easy pedalling for one hour at 100 watt output is good enough for lighting 10x3w LEDs for over 3 hours. (3w LED is eq to a 40watt incandescent bulb).

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