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Archive:000/Wind power: Difference between revisions
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|[[#Geography]] | |[[#Geography]] | ||
| | |Major limitation | ||
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|[[#Rare earth magnets]] | |[[#Rare earth magnets]] | ||
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|[[#Cement]] | |[[#Cement]] | ||
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__NOTOC__ <!-- The above table replaces ''most'' of the table of contents. --> | __NOTOC__ <!-- The above table replaces ''most'' of the table of contents. --> | ||
===Intermittency=== | ===Intermittency=== | ||
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To build a wind turbine{{x|specifically, the ''dynamo'' component which converts spinning motion into electricity}}requires either ''strong magnets'' (made with rare earth metals{{qn}}) or a complex gearbox (which requires maintenance{{qn| - labor}}and isn't suited for offshore wind). | To build a wind turbine{{x|specifically, the ''dynamo'' component which converts spinning motion into electricity}}requires either ''strong magnets'' (made with rare earth metals{{qn}}) or a complex gearbox (which requires maintenance{{qn| - labor}}and isn't suited for offshore wind). | ||
This | {{pn|This section needs more research to determine which rare metals are needed, in what quantities, and whether there would be enough global [[mineral reserves]] to scale up wind power enough to replace fossil fuels or not.}} | ||
===Cement=== | ===Cement=== | ||