RMR EXIT STRATEGY FOR B.M. DAVIS December 16, 2003
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RMR EXIT STRATEGY FOR B.M. DAVIS
December 16, 2003
BILL BOJORQUEZDirector of Transmission Services
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Fort Phantom
San Angelo
La Palma
Rio Pecos
G
G
G G
G
G
Bates
Laredo G
B. M. Davis 335 MWLa Palma 249 MWLaredo 172 MWBates 183 MWFort Phantom 202 MW San Angelo 102 MWRio Pecos 98 MWTotal: 1,341 MW
B. M. Davis
Fort Phantom
San Angelo
La Palma
Rio Pecos
G
G
G G
G
G
Bates
Laredo G
B. M. Davis 335 MWLa Palma 249 MWLaredo 172 MWBates 183 MWFort Phantom 202 MW San Angelo 102 MWRio Pecos 98 MWTotal: 1,341 MW
B. M. Davis
RMR UNITS
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EXIT TIMELINES
1,341 MWTOTAL
N/A172 MWLaredo
N/A183 MWBates
Dec. 2004335 MWB.M. Davis
Dec. 2005249 MWLa Palma
Dec. 2004202 MWFort Phantom
Summer 2004102 MWSan Angelo
November, 200398 MWRio Pecos
Est. Exit Timeline CapacityUnit
1,341 MWTOTAL
N/A172 MWLaredo
N/A183 MWBates
Dec. 2004335 MWB.M. Davis
Dec. 2005249 MWLa Palma
Dec. 2004202 MWFort Phantom
Summer 2004102 MWSan Angelo
November, 200398 MWRio Pecos
Est. Exit Timeline CapacityUnit
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B.M. DAVIS EXIT SCOPE OF WORK
Phase 1 (complete by January, 2005)• Installation of series reactors on both lines between
White Point and Nueces Bay • Terminate the Lon Hill to CCCP into the Weil substation • Cut in the Nueces Bay – Morris 138-kV line into the
Highway 9 line • Reconnect the Westside to Davis 138-kV line and install
two 28.8 MVAR capacitor banks at Weil, Westside and Airline substations
Phase 2 (complete by June, 2006)• Nelson Sharpe 345/138-kV substation on the south side
of the Corpus Christi at the crossing of Lon Hill to Rio Hondo 345-kV line and Alazan to Celanese 138 kV line
• 150-MVA 30-degree phase shifting transformer
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CORPUS SYSTEM,PHASE 1 ADDITIONS
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CORPUS SYSTEM,PHASE 1 ADDITIONS
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CORPUS SYSTEM,PHASE 1 ADDITIONS
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CORPUS SYSTEM,PHASE 1 ADDITIONS
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CORPUS SYSTEM,PHASE 1 ADDITIONS
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CORPUS SYSTEM,PHASE 2 ADDITIONS
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COST
TRANSMISSION ADDITIONS PHASE 1 & 2Total Capital Cost $33.3 MAnnual TCOS $ 6.7 M
ESTIMATED RMR COSTProjected Cost Net Uplift $22 M per year
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QUESTIONS/MOTION
• ERCOT Staff recommends that the Board approve the Phase 1 and 2 RMR Exit Strategy for B.M. Davis Unit No 1 as described in the RMR Exit document
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REJECTED OPTIONS
1. Original Nelson Sharpe Proposal w/ Two Series Reactors
2. Special Protection Schemes3. Seven Series Reactors4. Multiple 138kV Upgrades5. Nelson Sharpe with New 9-mile 345kV
line into Rodd Field
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APPROACH
• Staged approach to determine cost effective and timely transmission alternatives
• Near-term Alternatives: Upgrades to existing infrastructure that can be expedited − Do not require CCN− Can be completed in less than three years
• Long-term Alternatives: Future lines and system upgrades necessary to ensure that load is served reliably and without uneconomic RMR support
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OPEN PROCESS
• September 15, ERCOT hosted stakeholder meeting in Austin to review short-term RMR alternatives
• September 22, Stakeholders submitted comments to the short-term alternatives
• September 30, ERCOT issued a draft recommendation on RMR short-term exit strategies
• October 9, TAC voted in support of alternatives for Fort Phantom and La Palma
• October 10, Second stakeholder meeting:− Long-term alternatives for the Valley and Laredo and − Short-term alternatives for Corpus Christi
• November 21, ERCOT issues a revised draft exit strategy recommendation for B.M. Davis
• November 26, Stakeholder comments on B.M. Davis exit strategy
• December 4, TAC Support of Exit Strategy