biofuel, any fuel that is derived from biomass—that is, plant or algae material or animal waste. Since such feedstock material can be replenished readily, biofuel is considered to be a source of renewable en. . Some long-exploited biofuels, such as wood, can be used directly as a raw material that is. . In evaluating the economic benefits of biofuels, the energy required to produce them has to be taken into account. For example, the process of growing corn to produce et.
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Power system operations is a term used in to describe the process of on the timescale from one day (day-ahead operation ) to minutes prior to the . The term power system control describes actions taken in response to unplanned disturbances (e.g., changes in demand or equipment failures) in order to provide reliable electric supply of acceptable quality. The corresponding is called Power System Ope.
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