Investor Presentaiton
Vogtle 3 & 4 Major Milestone Definitions.
Initial Energization-
Energizing the main transformers to provide the initial supply of off-site power to the plant's electrical distribution system
needed for testing. Individual electrical components - pumps, valve, motors - will be powered providing 'life' to the plant.
Previously, plant equipment has been running on temporary power. This important milestone is needed to perform all
subsequent testing.
Integrated Flush-
To clean and remove any foreign material that could potentially impact operation of equipment, all system piping and
mechanical components that feed into the reactor vessel or coolant loops will be flushed. This flush will be performed utilizing
permanent plant pumps and clean water, hydrolasing, air flushing, and some hand cleaning. Integrated flushing ensures
systems can be tested without concern for damage from debris to meet the cleanliness and chemistry requirements necessary
to operate systems per design.
Open Vessel Testing-
Verifies the water flows between the primary systems and the reactor vessel and that the pumps, motors, valves, pipes and
other system components function as designed.
Main Control Room Ready for Testing-
To prepare for testing, the main control room must be able to be safely staffed by plant operators, which includes complete
lighting, ventilation, fire protection and communication capabilities. Operators monitor and control equipment essential for
safely starting and operating the plant. Having the equipment installed and operable in the main control room is a necessary
step for completion of testing and start-up.
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