News articles like “Wind Could Meet China's Electricity Needs by 2030: Study” and “Could Wind Power China’s Energy Future?” appeared in response to a report in the September 11 issue of Science, “Potential for Wind-Generated Electricity in China.” The Science article reports on a study that covers a range of factors, including meteorology, economics, and government policies. The abstract reads in part:
Wind fields derived from assimilated meteorological data are used to assess the potential for wind-generated electricity in China subject to the existing government-approved bidding process for new wind farms. Assuming a guaranteed price of 0.516 RMB (7.6 U.S. cents) per kilowatt-hour for delivery of electricity to the grid over an agreed initial average period of 10 years, it is concluded that wind could accommodate all of the demand for electricity projected for 2030, about twice current consumption.
The interdisciplinary number for wind power is 333.92 Air, a subdivision of 333.9 Other natural resources. The entry for 333.92 has the class-here note: “Class here wind energy, use of wind for generation of electricity.” An example of a work classed in 333.92 is Wind Energy—The Facts: A Guide to the Technology, Economics and Future of Wind Power. Because of the class-here note, wind energy approximates the whole of 333.92, and further addition is possible. For example, Wind Power in Europe: Politics, Business and Society is classed in 333.92094 Wind energy in Europe, built with 333.92 Air plus T1—09 Geographic treatment plus T2—4 Europe (as instructed at T1—093–T1—099 Treatment by specific continents, countries, localities; extraterrestrial worlds). Because of the add footnote at 333.92 (“Add as instructed under 333.7-333.9”), it is necessary to check the entry 01–09 Standard subdivisions in the add table at 333.7–333.9 Natural resources and energy to be sure that there are no special instructions for standard subdivisions.
Works on the technology of wind-powered generation of electricity are classed in 621.312136 Wind-powered generation. (There is a note at 621.45 Wind engines: “Class wind-powered generation of electricity in 621.312136.”) An example of a work classed in 621.312136 is Homebrew Wind Power: A Hands-On Guide to Harnessing the Wind.
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