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One of the distinguishing characteristics of deregulated power markets is variable demand. The ability to operate efficiently at partial loads can determine whether a plant is profitable or not. This need creates special challenges for hydroelectric turbines, because at partial loads they often exhibit strong swirl in the draft tube at the outlet of the […]

My New Year’s resolution was to try to be optimistic about 2005—and why not? The past few years have been a roller-coaster ride for the generation industry, with a quick turn here and a negative-G drop there. Although the ride was a bit gut-wrenching the first few times, the ups and downs are now expected […]