Being a little sloppy with the units is not that bad - his real blunder is
claiming 72 Watts output. The Condor catamaran claims 22 Amps at 144 Volts, or
over 3 kW output when regenerating in a good breeze. They generate enough
sailing during the day to power in and out of their inlet.


"Martin Baxter" wrote in message
...
JAXAshby wrote:
oh, you mean horsepower can not be compared to watts?

Gee, the European engine manufacturers do it all the time. somebody should
tell them you can't do that.

No, I mean this:

"6 amps at 12 volts for 24 hours = 1,728 watts, which = 2.3 hp-hours."

Amps times Volts times hours = Watt-hrs, a unit of energy
Horspower times hours= hp-hrs, a unit of energy
Watts are units of power
Horsepower is a unit of power (who would of thought it?)

Energy and power are two different things, which you well know.

Cheers
Marty