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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Is there someplace that has an analysis of how much energy is put into making, erecting,
and commissioning a windmill vs typical energy output. I'm wondering how long it takes to recover the energy used to put it in place. Since wind is a bit variable, we can assume it is somewhere in the wind corridor that T. Boone Pickens was pitching. I know solar cells have a lousy break even point unless the technology has changed drastically. Thanks, Wes |
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