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19 September 2006 -- American Electric Power's Cook Nuclear Plant Unit 1 set a unit fuel cycle record for net generation as the reactor was shut down on Saturday to begin a refueling outage.
In addition to refueling the reactor and regular outage maintenance and testing work, this outage includes replacing the reactor vessel head, the three low-pressure turbine rotors and other major component and system improvements with total project costs of more than $100 million.
Projected totals show the unit operated at 98.2 percent capacity factor and generated 12,049 GWH of electricity during the 18 month fuel cycle. The previous record set during that last fuel cycle was 11,721 GWH. This is the 21st refueling outage since the plant went online in 1975.
More than 1,800 contracted workers will supplement the regular 1,400-person plant staff. Approximately 14,000 maintenance, inspection and equipment modification job activities and 225,000 work-hours are scheduled.
The reactor vessel head replacement has been five years in planning and development. The replacement head incorporates corrosion resistant material that will improve safety and reduce expensive inspection requirements. The three low-pressure turbine rotors will increase the output of the unit by up to 25 MW during summer operation and 40 MW during the winter.
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