Western Area Power Administration – SNR Brief overview of WASN Sub- Control Area Operations.
Transcript of Western Area Power Administration – SNR Brief overview of WASN Sub- Control Area Operations.
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Western Area Power Western Area Power Administration – SNRAdministration – SNRBrief overview of WASN Sub-
Control Area Operations
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Overview
• Introduction to the new WASN Sub-Control Area.
• Review Western’s current business model and post 2004 marketing plan.
• WASN Sub-Control Area Operations.
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HistoryHistory
• Contracts between Western and PG&E end December 31, 2004 (2947A & 2948A).– Western provides PG&E
with CVP Generation, the output of the Bureau of Reclamation (BOR) units, in return for 1152 MW around the clock from PG&E (24/7/365).
– Western’s Customers received Contract Rate of Delivery - CRD energy.
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Old World
– Western’s Customers Energy needs were tracked by the ACES scheduling system.
• Prescheduled by Western’s Merchant
• Adjusted real-time by the TSS (Transmission Scheduling and Security) Dispatcher
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DecisionsDecisions
• Western was faced with the following choices.– Become a Federal
Control Area– Operate a
contractually based Sub-Control Area in one of the following Host Control Areas:
• CAISO• SMUD
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Outcome
• Western initially worked to become a Federal Control Area.
– Political and Operational concerns turned Western’s efforts toward becoming a Hosted Sub-CA.
– SMUD was eventually chosen as Western’s Host Control Area.
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• WECC Compliance Monitoring and Operating Practices Subcommittee (CMOPS) peer review team had a positive recommendation for the SMUD Control area that includes the WASN footprint
Approval
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The New Footprint
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New World
On November 1, Western – SNR changed its Transmission Provider name from WAP to WASN– The name change is in keeping with the other Western Regions – Beginning January 1, 2005, Western will allocate Base
Resource energy (formerly CRD energy) to its Customers.
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New Provider Name
• Western’s Transmission Provider change notice has been on SNR’s OASIS node located @ www.oatioasis.com since late September. The Transmission Provider name change is the most visible step toward WASN Sub-CA Operations.
• WAUE – Western’s Upper Great Plains Region• WALC – Western’s Desert Southwest Region• WAPA – Western’s Upper Great Plains Region• WACM – Western’s Rocky Mountain Region
• WASN – Western’s Sierra Nevada Region
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New Systems
• Western will implement a number of new systems for its post 2004 Marketing Plan
• Merchant System - webTrader
• WebTrans – Western’s Reliability - will be the primary tool for Transmission scheduling beginning January 1, 2005– OATi product– Integrates webOASIS, ETS
(webTag), and transmission scheduling features
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2005 WASN Operations
• WASN will operate the BOR units via AGC
• WebTrans will develop the WASN Sub-CA NSI via E-tags
– All Sub-Control Area Transmission Schedules will be E-tagged
– WASN E-tags will create a schedule in webTrans
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Regulation & Reserves
• The WASN Sub-CA will have a 25% portion on the SMUD CA regulation signal.
• Also, WASN will be responsible for 44% of contingency reserves for the SMUD Host CA.
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Scheduling
• PSEs Using CVP transmission will electronically tag their schedules.
• Western’s Merchant will E-tag the Base Resource Deliveries.
• Internal Entities will E-tag the remainder of their transmission schedules.
• PSEs are responsible for adjustments to E-tags for market reasons.
• Western’s TSS Dispatcher will curtail E-tags for reliability concerns. – The TSS Dispatcher will reload the E-tags when
appropriate.
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Closing
• Thank you for your time and attention, Please visit– Western’s Home Page @ www.wapa.gov for
more information on Western’s post 2004 marketing plan
– SNR’s OASIS node @ www.oatioasis.com and click on the SNR logo for the latest information