2006 CAISO Transmission Plan Presentation to the California ISO Board of Governors January 24, 2007 Gary L. DeShazo Director of Regional Transmission North
2006 CAISO Transmission Plan • The first CAISO Transmission Plan is before you today – Plan presented to stakeholders in early December • An old era ends – Individual PTO plans received and reviewed – CAISO review focused on individual projects, not an overall plan – Operational concerns/issues generally were not addressed • A new era begins with this 2006 Transmission Plan – Single transmission plan for the CAISO Controlled Grid – PTO and CAISO projects combined into a single plan – Operations, short-term, mid-term, and long-term focus – CAISO review focuses on overall plan – Consistent with sub-regional planning principles Gary DeShazo/Regional Transmission North 2 1/24/2007
What Is In the “Plan” • Annual transmission plan prepared jointly by the CAISO and PTOs and reviewed by stakeholders • Coordinated with the PTOs, CEC, and CPUC • Documents all CAISO and PTO studies – All projects under $20M approved by CAISO Management – All projects $20M or greater are listed but individually approved by CAISO Board – All projects that are anticipated to be brought before the CAISO Board • Projects to be considered for “approval” by the CAISO must be in the Plan – No more closure letters • Fifteen year planning horizon • Five year LCR horizon • Baseline deliverability studies • Integrate relevant CEC IEPR recommendations Gary DeShazo/Regional Transmission North 3 1/24/2007
2006 “Plan” Highlights Transmission • Documents 160 transmission project proposals • Includes the seven CAISO Transmission Initiatives presented to the Board in April 2006 Number of Projects SDG&E 34 SCE PG&E 32 94 Gary DeShazo/Regional Transmission North 4 1/24/2007
2006 “Plan” Highlights Transmission • Summarizes major California and inter-regional planning initiatives – Tehachapi Project – Sun Path Project (Sunrise + Green Path) – LEAPS Project – Trans Bay Cable Project – Midway – Gregg Line – Frontier Line – New British Columbia – California Line – West Coast Cable Project Gary DeShazo/Regional Transmission North 5 1/24/2007
2006 “Plan” Highlights Deliverability • Phase I – Evaluation of all generation expected to be in operation in 2006 (58,000 MW) • Phase II Complete by February 2007 – Phase IIA evaluates all generation in the interconnection “queue” as of March 30, 2005 (22,000 MW) – Phase IIB will include all remaining generation in the interconnection queue • Phase II Report – List of new resources that do not pass deliverability test – Amount of non-deliverable capacity for new resources – Conceptual transmission project alternatives that would ensure their deliverability Gary DeShazo/Regional Transmission North 6 1/24/2007
Phase IIA Captain Mali Jack n Celil o Deliverability Study Trinit Shast Round y a Mountain 14 Generation Pockets Humbol Nuclear Keswic PIT dt k River Generation Olind Cortin Generatio +50 kV a Hyat a n 50 0 k DC Feather Substatio Identified t 23 k Tabl 0 V River n Cottonwo Mountai e WECC Transfer 11 0 V k Humbol Sierr dt od n Path 5 V a Palerm o -Contra Solan Colgat o Costa Cortin Dru e m a Rio Geyser Summi Oso Geyser s t Atlanti s c Fulto Vac Gold n a Hill Lakevill Dixo e n Ignaci Brighto Bir o n Pittsburg Landin d Trac Geyser h g Win y s Bellot Maste -McCa -Wilso d Panoch Sobrant Contra a r e ll n Costa e Potrer Tesl Newar o Pittsburg k a Big h Wilso Creek n Warnervil Metca le LDWP Los lf San Gorge Helm Banos Luis SPP Silver s Peak Moss Landing Greg Kings Iny g River o Contr Intermounta Panoch ol Haiwe e in McCal Colorado Hoove e l River r Inyoker Balc n h Krame Market r Morro Place Bay Midwa Gate Victorvill Mea Perkin s y e d s McCullou Libert Magunde gh Adelant Cryst Diabl y n Mes o al Canyo o Pisga Cim a Antelop Navaj n h e a o Vince Lompo Eldorad c nt Parde o Palo Sylma Lug Mandala e Verde Lompo y r Mohav o c e Toluc Ormond Chin Beach a Mira o Castai Rinal Dever Loma East of c di North Devers s Santiag Gila Huntington o Beach Serran Valle Mirag Coachell o e y a II SONG Taleg Greater El D S a Centro Encin SD Escondid a o Encin Missio Moenko Southba a n Imperial Migu pi y Es /Sy Valley el Termoelectri c c US De ca Los Old A MEXIC Gary DeShazo/Regional Transmission North 7 1/24/2007 Mexicali O Coches Town Centr La Rosita al CF CF Hassayam II Tijuan E La E pa a Rosita
LCR Outlook Requirements For 2006 & 2007 Anticipated Trend 2009 & 2011 PG&E SCE SDG&E 30,000 25,000 LCR Capacity, MW 20,000 15,000 10,000 5,000 - 2006 2007 2009 2011 Year Gary DeShazo/Regional Transmission North 8 1/24/2007
2006 “Plan” Highlights Short-term Plan and Operating Guides • Short-term Plan – Analyzes system from 1 to 3 years in advance and recommends to anticipated operations and reliability issues – Focuses on operational gaps; congestion and reliability – 21 recommendations proposed to PTOs based on 2006 summer operation • Operating Guide – Consolidates the next year calendar projects • 53 projects calendared for 2007 – Describes the transmission impacts of the project – Relates each project to the affected Operating Procedures – Provides a work-plan for updating OTC, Operating Procedures, and necessary tools Gary DeShazo/Regional Transmission North 9 1/24/2007
Excerpt From the 2006 Operating Guide Targeted In- # Project Title Region Project Scope System Impact Service Date 1 Ignacio 115/60kV PG&E – Replace the 115/60kV transformers Reduces T-1 concern and increases 05/01/2007 Transformer North West with a larger unit (200 MVA) reliability to 60kV customers. Removes the Ignacio #1 or #3 Bank SPS. 2 Lakeville-Sonoma PG&E – Construct one new 115kV line from Improves L-1 voltage performance at 05/01/2007 115kV line North West Lakeville to Sonoma Sub. Sonoma and Pueblo substations. 3 Tulucay 230/60kV PG&E – Install a new 230/60kV transformer Increases transformer capacity 05/01/2007 Transformer North West (200 MVA) 4 Fulton-Lakeville PG&E – Reconfigure transmission to create a Increases Import capacity into South 11/30/2006 230kV line North West Fulton-Lakeville 230kV line. Geysers, reduces RMR requirement. 5 Reliability Project: PG&E – Replace Relays to increase the rating Increases import/export capability under 10/16/2006 Rio Dell Jct CB 42 & North West from 400A to 4/0 AL ratings of 297, some clearance conditions at Humboldt 22 Relay Replcmnt 345, 443, 473 Amps Bay PP. 6 Reliability Project: PG&E – Replace Relays to increase the rating Increases 60kV line capacity. 08/31/2006 Maple Creek CB 42 North West from 300A to 4/0 ACSR ratings of 297, Relay Replacement 345, 443, 473 Amps 7 W. Sacramento- PG&E – Reconductor the West Sacramento- Increases import capacity into Woodland 10/01/2006 Davis Transmission North East Davis 115kV line (215 MVA) and Davis 115kV system. Reduces L-1 concerns under clearance conditions. 8 Colgate-Rio Oso PG&E – Rerate 230kV transmission lines for Increase 230kV line capacity. 12/01/2006 230kV Line Re-Rate North East 3fps (429 MVA) 9 Davis-UC Davis 60kV PG&E – Convert two 60kV lines between Davis Increases voltage performance and 12/01/2006 to 115kV conversion North East and UC Davis to 115kV (252 MVA) thermal capacity to UC Davis. 10 Colgate 230/60kV PG&E – Replace 230/60kV transformer at Part of plan to radialize 60kV system. 03/01/2007 Capacity Increase North East Colgate Powerhouse with a larger unit Once radial, the Colgate T-1 concern will and install a spare phase (135 MVA) be eliminated. 11 Pease-Marysville PG&E – Construct new 60kV transmission line Part of plan to radialize 60kV system. 05/01/2007 60kV line North East (117 MVA) Once radial, the Colgate T-1 concern will be eliminated. Gary DeShazo/Regional Transmission North 10 1/24/2007 12 Mtn Quarries 60kV PG&E – Reconductor Mountain Quarries 60kV Increase 60kV line capacity. 05/01/2007 Tap Reconductor North East Tap (46 MVA)
2006 “Plan” Highlights • Area assessments – Detailed assessment and analysis of the CAISO Controlled Grid – Ten-year planning horizon – CAISO staff has identified over 30 LCR, Deliverability, and congestion issues across the Grid – Solutions are being considered for all issues • Future Plans (2007) – Scenario assessments – Congestion analysis pre and post MRTU – Resolution to LCR issues – Long-term Firm Transmission Rights – Import allocations within a Resource Adequacy framework – Probabilistic planning (LOLP) for LCR and Capacity Market – Third category of new transmission facilities – Rebuttable presumption Gary DeShazo/Regional Transmission North 11 1/24/2007
End of Presentation Gary DeShazo/Regional Transmission North 12 1/24/2007
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