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Re: Human-Powered electricity generating..?
Years ago I used to follow the Human Powered folks. I have a stack of magazines somewhere. Any how, IIRC, any reasonably fit person can produce about 75 Watts, world class athletes about 400 Watts. This is continuous for hours. If you were on a boat doing this every day for say 2 hours, you would soon enough find yourself over 200 Watts I would think.
I once left Winnipeg and made it to Vancouver a month later. I was in MUCH better condition at the end of the month.
So assuming 200 Watts after a while of getting in to shape, and 2 hours/day, and 75% efficiency, a good working number would be something like 300 Watt-hours a day for one's 2 hours of exercise.