Workshop on ACC RMR study submitted with 2004 ten year plan

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Workshop on ACC RMR study submitted with 2004 ten
year plan
Tucson Electric Power
January 15, 2004
Ed Beck Supervisor Transmission Planning
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TEP RMR Study

• TEP operates its system to WECC / NERC Level C
  (N-2) criteria
• Studies for RMR analysis were done to WECC / NERC
  Level B (N-1) based on Biennial assessment
• Cases used in study developed jointly with APS,
  SRP, WAPA, SWTC

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TEP System

• TEP system historically has been voltage
  stability constrained
• Local Var responsive units can be committed in
  TEP load area to supply var support and lower
  imports as necessary
• Automated remedial action scheme that responds to
  selected single and double contingencies within
  maximum 0.7 seconds
• In future years we have identified thermal and
  internal voltage SIL constraints

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UES System

• This report does not address issues with the UES
  Santa Cruz County area
• TEP is extensively studying issues in Santa Cruz
  county as part of a separate study for the
  Commission

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2005 New Facilities
Westwing
Saguaro
North Loop
Tortolita
Greenlee
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2008 New Facilities
Westwing
Saguaro
North Loop
Tortolita
Greenlee
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2012 New Facilities
Westwing
Saguaro
North Loop
Tortolita
Greenlee
Nogales
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Simultaneous Import Limit
Year SIL MW MW Losses Total MW Critical Outage Nature of Constraint
2005 1520 89 1609 Cholla Sag. 500 kV line WECC volt. Stability criteria
2008 1470 74 1544 South T2 345/138kV xfmr Irv/VL 138 kV line limit
2012 1770 116 1886 SPR-VL 345kV line Internal volt. Criteria
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Peak Load
Year PEAK MW MW Losses Total MW RMR MW Critical Outage Nature of Constraint
2005 2000 110 2110 178 South T2 345 / 138 kV Xfmr Irvington / Vail 138kV line loading limit
2008 2121 99 2220 286 South T2 345 / 138 kV Xfmr Irvington / Vail 138kV line loading limit
2012 2287 147 2434 119 Tortolita 500/138 Xfmr (1 or 2) Remaining Tortolita 500/138 kV Xfmr loading limit
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MLSC
Year PEAK MW MW Losses Total MW MW Gen. Critical Outage Nature of Constraint
2005 2420 131 2551 552 South T2 345 / 138 kV Xfmr Irvington / Vail 138kV line loading limit
2008 2445 110 2555 629 South T2 345 / 138 kV Xfmr Irvington / Vail 138kV line loading limit
2012 2720 152 2872 659 Tortolita 500/138 Xfmr (1 or 2) Remaining Tortolita 500/138 kV Xfmr loading limit
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Summary Cost RMR
Inc. RMR gen. costs 2005 2008 2012
SIL 1600 1550 1850
MLSC 2500 2525 2800
Peak Load 2000 2121 2286
RMR 348 826 385
Annual Cost 68,061 307,179 301,885
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Environmental
RMR Output SO2 NOx PM CO
2005 30 7,679 230 901
2008 188 48,221 1,508 5,807
2012 21 5,415 162 636
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• Questions?