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Accommodating High Levels of Variable Generation - NERC

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Power System Operations<br />

4.4. Summary<br />

The expected significant increase in variable generation additions on the bulk power system will<br />

increase the amount <strong>of</strong> operational uncertainty that the system operator must factor into<br />

operating decisions. To manage this increased uncertainty, the system operator must have access<br />

to advanced variable generation forecasting techniques and have access to sufficient flexible<br />

resources to mitigate the added variability and uncertainty associated with the large scale<br />

integration <strong>of</strong> variable generation. In this respect, operating criteria, forecasting, commitment,<br />

scheduling, dispatch and balancing practices, procedures and tools must be enhanced to assist<br />

operators in maintaining bulk power system reliability.<br />

<strong>Accommodating</strong> <strong>High</strong> <strong>Levels</strong> <strong>of</strong> <strong>Variable</strong> <strong>Generation</strong> 62

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