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BAL-002-WECC-1 David Lemmons Drafting Team Chair

BAL-002-WECC-1 David Lemmons Drafting Team Chair. Before the WECC ISAS Meeting April 1 8, 2012 SALT LAKE CITY, UTAH. What the Standard Is. This standard addresses/defines the quantity and quality of Contingency Reserves required to be held in the WECC

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BAL-002-WECC-1 David Lemmons Drafting Team Chair

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  1. BAL-002-WECC-1David LemmonsDrafting Team Chair Before the WECC ISAS Meeting April 18, 2012 SALT LAKE CITY, UTAH

  2. What the Standard Is • This standard addresses/defines the quantity and quality of Contingency Reserves required to be held in the WECC • It also clearly defines who is responsible for carrying these reserves. • Balancing Authorities unless member of Reserve Sharing Group • Reserve Sharing Group

  3. What the Standard Is Not • It is not a Frequency Response Standard • It is not a prescription on how or when to respond to a contingency • This is addressed under the NERC BAL-002 standard. • It is not a Regulating Reserve standard

  4. Overview of Requirement R1 • R1 – minimum amount of Contingency Reserves is the greater of • Most Severe Single Contingency or • 3 Percent of Load plus 3 Percent of Generation • No Change from what was passed in Albuquerque by this Operating Committee and the Board of Directors later in 2008 • FERC stated this was acceptable in Order 740

  5. Overview of Requirement R2 • R2 – minimum Operating Reserve – Spinning equal to 50 percent of R1 • Must be immediately and automatically responsive to frequency • Must be fully responsive within 10 minutes • While Operating Reserve – Spinning must be initially responsive to frequency, R2 does not require a full automatic response via governor action. Initial response only.

  6. Overview of Requirement R3 • R3 – requirement for additional reserves if the Sink BA is buying energy associated with the Source BA’s Contingency Reserves • For example, purchase of energy that is recallable by the Source BA for reserve activation. • Tagged as Product Code C-RE: Capacity associated with energy recallable for reserves. This product is energy which is recallable within ten minutes of activation of reserves and has been included in the Source Balancing Authorities reserve resources.

  7. Overview of Requirement R4 • R4 – requirement for additional reserve at the Source BA if they have sold Contingency Reserves which can be called upon by the Buyer. • C-SP: Capacity for spinning reserve. On-Demand spinning reserve obligation/resource is a spinning reserve product that can be activated through the adjustment of a capacity e-tag. • C-NS: Capacity for non-spinning reserve. On-Demand non-spinning reserve obligation/resource is a non-spinning reserve product that can be activated through the adjustment of a capacity e-tag.

  8. Reserve Restoration Period • Standard states 60 minutes from the event. • During the last comment period, BPA made the comment that they will file a SAR to begin the process to justify the 105 minute NERC period.

  9. Summary • While a standard can not address every concern of every member, this standard provides significant clarity over the existing standard and ensures the continued reliability of the Western Interconnection.

  10. BAL-002-WECC-1 Questions?

  11. Impact of Standard to Applicable Entities • Reviewed hourly data from Q1 2010 • WECC-wide Impact • Average Decrease of 88 MWs per Hour • This is a 1.3 percent decrease. • This is also offset due to continued installation of renewable generation • CFE, LADWP and RMRG No change

  12. Impact Continued • CAISO • Average decrease of 110 MWs per hour • Ranges from 0 to -218 MWs in a single hour • NWPP • Average increase of 30 MWs • Ranges from 183 MW increase to 482 MW decrease • Average increase of 8 MWs from current operations • SRSG • Average decrease of 7 MWs • Ranges from 123 MW increase to 383 MW decrease

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