Business Services Industry
Ameren, Illinois Power Officials Reacted Swiftly to Dodge Rolling Blackout.
Knight Ridder/Tribune Business News, August, 2003
By Jack Naudi, St. Louis Post-Dispatch Knight Ridder/Tribune Business News
Aug. 16--Shortly after 3 p.m. Thursday, technicians at Ameren Corp. noticed that gauges showing the fre...uency of electricity flowing through transmission lines began rising.
Fre...uency runs counter to usage, rising when electricity use drops. Fluctuations in fre...uency are common throughout a day, but typically they are brief and return to a mean value.
This time, the fre...uency wasn't returning to normal.
"When you see a trend, one way or another, that means something is happening in the system," said David Whiteley, senior vice president at Ameren Corp., parent company of AmerenUE. "This was an indication that there had been a significant amount...
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