MEETING AGENDA. Western Area Power Administration Rocky Mountain Region. Transmission Planning Stakeholder Meeting

Transcription

1 MEETING AGENDA Western Area Power Administration Rocky Mountain Region Transmission Planning Stakeholder Meeting Western s RMR Regional Office 5555 East Crossroads Boulevard, Loveland, CO December 14, :00 pm to 3:00 pm MST 1) 1:00 pm... Introduction of Attendees \ Finalize Agenda (Bob Easton) 2) 1:05 pm... Overview of the Western s Process for FERC Order No. 890 (Debbie Farm) 3) 1:15 pm... West Connect Transmission Update (Bob Easton) 4) 1:30 pm... Transmission Planning Studies (Jim Hirning) 5) 1:45 pm... Review of 2011 Transmission Planning Study Scope & Process (Susan Franklin) 6) 2:00 pm... Capital Improvement Plan (Diane Keirn) 7) 2:30 pm... Stakeholder Input / Open Discussion (Bob Easton) 8) 2:45 pm... Next Meeting Date and Closing Remarks (Bob Easton) 9) 3:00 pm... Adjourn

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3 Western Area Power Rocky Mountain Region Planning Stakeholder Meeting (Western OATT Attachment P) December 14, 2011

4 Meeting Purpose To inform stakeholders about Western s transmission system planning process and provide input Allow Western to maximize its understanding of its customers forecasted needs for Western s transmission system Review transmission plans

5 OATT Revision Order 890 issued Feb. 16, 2007 Western maintains a safe harbor OATT with FERC Not required to abide by Order 890 compliance deadlines like jurisdictional TPs Resources and projects are based on statutory or budgetary restrictions Any variances in the FERC approved OATT must be justified to customers and accepted by FERC May make modifications that are consistent with or superior to pro forma OATT provisions Western revised OATT to address Order 890 Submitted to FERC September 29, 2009 Effective Date: December 1,

6 OATT Revision Information regarding OATT Revision is posted at the following URL: Tariff documents are posted on OASIS at the following URL: Docs.htm Tariff REDLINE Documents: REDLINE-Effective pdf 4

7 FERC Order 890 Planning Principles Transmission Planning: FERC requires a more inclusive transmission planning process incorporating nine principles: (1) coordination, (2) openness, (3) transparency, (4) information exchange, (5) comparability, (6) dispute resolution, (7) regional participation, (8) economic planning studies, and (9) cost allocation for new projects. 5

8 Planning Process Types of Studies Performed NERC/WECC Reliability Studies Sub-regional Coordination (CCPG) 2011 Ten Year Capital Program Generator Interconnection & Transmission Service Requests

9 Types of Planning Studies» Reliability Studies Meet NERC/WECC standards and coordinate through CCPG» Sub-regional Coordinated Studies identify congestion and overloads and address integration of new resources and loads» Western invites the submittal of transmission study requests from stakeholders for review and discussion» Western s point of contact for study requests is rmrplanningmanager@wapa.gov.

10 Western s Service Territory

11 WestConnect Planning Update Bob Easton Transmission Planning Workshop December 14, 2011

12 WestConnect Planning Footprint WECC Subregional Planning Groups Major Transmission Facilities ColumbiaGrid Northern Tier Transmission Group (NTTG) Northwest Transmission Assessment Committee (NTAC) that are not part of ColumbiaGrid or NTTG WestConnect (SWAT, CCPG & Sierra) California ISO California Transmission Planning Group that are not part of CAISO Other Facilities 2

13 Parties to WestConnect STP Project Agreement Arizona Public Service Company Basin Electric Power Cooperative Black Hills Corporation El Paso Electric Company Imperial Irrigation District Public Service Company of CO Public Service Company of NM Platte River Power Authority Sacramento Municipal Utility District Salt River Project NV Energy Southwest Transmission Cooperative Transmission Agency of Northern California Tri-State Generation & Transmission, Assoc. Tucson Electric Power Company Western Area Power Administration 3

14 WestConnect Subregional Planning Groups CCPG, SSPG and SWAT are technical planning work groups within the WestConnect Footprint Coordinate Information for use by all study participants Define subregional study plans, provide study resources, and perform studies Provide forum for coordination and peer review of planning studies and 10-year plans SSPG Sierra Subregional Planning Group SWAT Southwest Area Transmission CCPG Colorado Coordinated Planning Group 4

15 2011 SCOPE of Work PMC Consultant - MAPPCOR Manage Annual Planning Process Update the 10-Yr Planning Documents Coordinate Annual TTC/ATC Workshop Participate in WECC TEPPC 5

16 2011 SCOPE of Work Coordinate 10-yr WestConnect Footprint Base Case OPTIONAL Coordinate with SCG (Result of DOE FOA) Attend CCPG/SWAT/SSPG Joint Meeting Maintain TPM Database and Google- Mapping 6

17 FERC Order 1000 Five Task Forces Formed Planning; Cost-allocation; Compliance Filing; Governance; Communications ICF International Helping with Overall Coordination Monthly Joint Implementation Management Committee Meetings Scheduled for Next Meeting is December WAPA-DSW Plan to Have Compliance Filing Tariff by August 7

18 Western Interconnection Planning Process SCG Process Coordination Among STPs 8

19 WestConnect Synchronized Planning Cycle TEPPC Economic Study Results For WestConnect Footprint 2011 Planning Cycle 11/16/11 Workshop STPG Study Results Future Study Needs Planning Report Prep. 3 mo. Study Plans Dev. Publish 10 Yr Plans Approve 2011 Trans. Reports 2012 Study Plans 2/16/12 Annual Mtg 2011 Planning Cycle WestConnect Economic Study Request of TEPPC Continue coordination / collaboration with Subregional Planning Coordination Group (SCG)

20 Western RMR Transmission Planning Stakeholder Meeting 2011 Transmission Planning Studies Jim Hirning Transmission Planner Loveland, CO December 14,

21 NERC/WECC Transmission Planning TPL-001, -002, -003, -004 Ensure system is adequate to meet present and future needs Demonstrate through assessment Planning for near and long term Cover all demand levels over range of forecast demands Include existing and planned facilities Ensure adequate reactive resources 2

22 CCPG Colorado Coordinated Planning Group Eight Member Utilities Basin Electric Power Cooperative Black Hills Corporation Colorado Springs Utilities PacifiCorp Platte River Power Authority Publice Service Company of Colorado (Xcel Energy) Tri-State Generation & Transmission Assoc. Western Area Power Adminstration-RMR 3

23 Yellowtail CCPG Footprint Thermopolis Buffalo Wyodak Osage Lange Rapid City (DC Terminal) Riverton Casper Spence Platte Jim Bridger Dave Johnston Laramie River Stegall (DC Terminal) Archer Sidney (DC Terminal) To Ashley To Upalco To Mona Flaming Gorge Vernal Bonanza Meeker Craig Hayden Gore Pass Ault Ft. St. Vrain Pawnee Story N. Yuma Rifle Cherokee Big Sandy Burlington Malta Midway Montrose Curecanti Poncha Lost Canyon Boone Comanche Lamar (DC Terminal) Hesperus Trinidad To To San Juan To Glade

24 2011 NERC/WECC Compliance Report Performed Annually Area Studied Colorado Wyoming Western Nebraska Western South Dakota 5

25 Purpose Evaluate the steady state post-contingency response of the Integrated System Evaluate transient and voltage stability Identify problem areas due to system load growth Meet NERC/WECC Transmission Planning Standards 6

26 Study Procedure Cases Examined 2016 Heavy Winter 2016 Light Autumn System Intact Criteria 100% Continuous Rating Loading 0.95 p.u p.u. Voltage Contingency Analysis Criteria 100% Continuous/Emergency Rating Loading 0.90 p.u p.u. Voltage 7

27 Results 2016 Heavy Winter Stegall 100 MVA 230/115 kv Transformer Overload upon outage of Stegall 167 MVA 230/115 kv Transformer Midway 100 MVA 230/115 kv Transformer Overload for outage of Nixon 230 kv bus 8

28 Results (cont d) 2016 Light Autumn Rockport Nunn and Rockport-Owl Creek 115 kv lines Overload upon Ault 230 kv Bus Outage 9

29 Results (cont d) 2020 Heavy Summer Stegall 100 MVA 230/115 kv Transformer Overload upon outage of Stegall 167 MVA 230/115 kv Transformer Midway 100 MVA 230/115 kv Transformer Overload for double outage of Nixon- Front Range and Nixon-Midway 230 kv lines 10

30 Results (cont d) 2020 Heavy Summer Bridgeport, Gering, McGrew Wildcat, Emigrant, Greenwood, and Dalton Low voltage for Stegall 115 kv Bus Outage Gering, McGrew Wildcat, Emigrant, Torrington, and Lyman Low voltage for Stegall 230 kv Bus Outage 11

31 Results (cont d) 2020 Heavy Summer Kiowa Ck, Orchard, Prospect Vly, Wiggins, Barlow, Excel, and Ft Morgan E, S, N, and W Low voltage for Beaver Creek 115 kv Bus Outage 12

32 Questions Any Questions or Comments? 13

33 Studied by Jon Fidrych Presented by Susan Franklin Transmission Planners December 14,

34 Ensure that the Western transmission system continues to serve preference power customers while maintaining NERC and Western standards. Evaluate the steady state load serving capability of the integrated system while preserving TOT path capacity. Identify and study system constraints due to system load growth or block load additions. Schedule and scope Western transmission and substation system projects for inclusion in the Capital Improvement Plan (CIP). 2

35 Request and receive load data from network customers Jan-March 2012 Power Flows Develop base cases March-April 2012 Analyze power flow results Study solutions Report May-July 2012 Inclusion in Capital Improvement Plan Preliminary Scope and Estimates Aug-November 2012 Present study results at Quarterly Stakeholders Meeting December 2012 Loads Projects Stakeholders 3

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38 Cases Examined Heavy Summer 2016 Light Summer 2016 Heavy Winter 2016 Light Winter 2016 Heavy Summer 2021 Light Summer 2021 Criteria System Intact 0.95 p.u p.u. Voltage 100% Continuous Loading Rate Contingency 0.90 p.u p.u. Voltage 100% Continuous Rating or Emergency Limit Contingency Analysis N-1, N-2 Monitored integrated system and adjacent area 6

39 TOT 3 (Path 36) Archer to Ault 230 kv Laramie River to Ault 345 kv Laramie River to Story 345 kv Cheyenne to Ponnequin 115 kv Sidney to Sterling 115 kv Sidney to Spring Canyon 230 kv Cheyenne to Ault 230 kv TOT 5 (Path 39) Hayden to North Park to Archer 230 kv Craig to Ault 345 kv No. Gunnison to Salida 115 kv Hayden to Gore Pass 230 kv Hayden to Gore Pass 138 kv Curecanti to Poncha 230 kv Basalt to Malta 230 kv Hopkins to Malta 230 kv TOT 3 TOT 5 in MW 2016 Heavy Summer Light Summer Heavy Winter Light Winter Heavy Summer Light Summer

40 Studies based on network customer projections 5 & 10 years in the future. Voltage and thermal issues that appear for the first time will be monitored for recurrence. Voltage and thermal issues that repeatedly appear may be studied as a sensitivity study and result in a change of the corrective action plan and Capital Improvement Plan. 8

41 Big Horn Basin N-1 Loss of the Yellowtail-PACE Yellowtail 230 kv tie Loss of the Big George or Lovell 115/69 kv transformers System Impacts Thermal issues on the Yellowtail-Basin 115 kv. Voltage issues on the 115 kv and 69 kv system from Meeteetse to Lovell. Overload of the Big George 115/69 kv and Lovell 115/69 kv transformers. Solutions and Future Studies Current projects Yellowtail-Lovell 115 kv Rebuild Lovell-Nahne Jensen 115 kv Uprate Sensitivity studies in 2012 Ten Year Study of the Big Horn Basin 9

42 See Inset Rebuild Project Uprate Project 10

43 Alcova-Miracle Mile 115 kv #1 & #2 Lines N-1 Loss of one Alcova-Miracle Mile 115 kv line System Impacts Thermal issues on remaining circuit Solutions These lines are included in Central Wyoming Transmission Improvement projects. In addition, the ongoing Wyoming CENTRIC Study may make the rebuild of the Alcova-Miracle Mile 115 kv lines part of the CENTRIC Study solution. Construction of the Gateway West project will provide for the long term solution to the thermal overloads during contingency. 11

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45 Sidney-Peetz-Sterling 115 kv Line N-1 Loss of Sidney-Spring Canyon 230 kv System Impacts Thermal issues on the Sidney-Peetz-Sterling 115 kv Line, recurrent in other Ten Year Studies and System Impact Studies. Solutions Rebuild Sidney Peetz Sterling 115 kv line Build at 230 kv spacing with 1272 kcmil conductor operate at 115 kv 13

46 Rebuild Project 14

47 Stegall-Gering 115 kv #1 & #2 N-1 Loss of one Gering-Stegall 115 kv or Gering-Emigrant Tap-Stegall 115 kv line System Impacts Thermal issues found on the remaining 115 kv line Solutions The CT rating factors were confirmed and line rating changed to reflect CT ability, resulting in the circuits not overloading in this ten year study. 15

48 Stegall-Torrington-Gering Area N-2 Loss of Stegall 230 kv or 115 kv buses System Impacts Thermal and voltage issues found on system Solutions Platte Valley Voltage Conversion study, following, resulted in projects that alleviates the thermal and voltage issues. 16

49 Light and Heavy Summer 2021 Voltage or thermal issues discovered in the 2021 cases were resolved by system upgrades from the 2016 study, other ownership projects, operating procedures, or will be addressed in sensitivity studies within the 2012 Ten Year Annual Study. 17

50 Archer 230/115/13.8 kv 167 MVA Transformer KV1A Replacement System Impacts Failed single phase Derated bank due to mobile impedances Solutions Replace and install a 230/115/13.8 kv 200 MVA transformer Archer 230/115/13.8 kv 167 MVA Transformer KV2A System Impacts Loading during contingency Solutions Replace KV2A and install a 230/115/13.8 kv 200 MVA transformer with matching size and impedance of KV1A 18

51 PVVC 19

52 Rocky Mountain Region Capital Investment Program Plan Prepared by Diane Keirn December 14, 2011

53 CAPITAL INVESTMENT PROGRAM PLAN Communicate capital investment projects for the next ten fiscal years internally and to customers. Includes all power systems and funding types Provides a mechanism for customer collaboration for capital investment projects Define challenges, goals, strategies, and measurements for the Plan.

54 CIP PROCESS TIMELINE October - RMR data collection and review for updates to existing projects and new projects. November Rates office uses the review and adjusted CIP for analysis of the Transmission Rate projections. December - Distribution to Customers January CIP group refines report based on customer feedback February- Final plan is provided to the Finance office for budget formulation March - Final Distribution of the Plan

55 CIP USES RMR managers and finance personnel A guide for managing project budgets and execution. Primary tool for program managers to ensure efficient execution of the capital program for the Region. Capital Investment Committee Review and adjust the region s capital program priorities on a monthly basis. RMR Finance Office Formulate the budget. Rates office Update Transmission Rates studies RMR customers Annual baseline to gauge the region s performance and accomplishments.

56 MAJOR CIP PROJECTS COMPLETED FY11 Pick Sloan Garland 12.5-kV Rebuild $ 80k Fleming Transformer Replacement $ 134k Fort Morgan Capacitor Bank $ 869k Frenchman Creek Capacitor Bank $ 583k Lusk KX1A Transformer Replacement $ 747k Sidney Capacitor Bank $ 453k Mobile and Heavy Equipment $ 654k Casper Storage Building $ 279k

57 PICK SLOAN MAJOR CAPITAL PROJECTS Transmission Lines Wyoming Centric Transmission Project Platte Valley Voltage Conversion Project (PVVC) Gering-Gering Valley Underground Granby-Windy Gap 69-kV Rebuild Estes-Flatiron 115-kV Rebuild Lovell Basin -115-kV Upgrade Lovell-Yellowtail #1 & #2 TL Rebuilds Phase 1 Lovell-Yellowtail #1 & #2 TL Rebuilds Phase 2 Wray Tap-Wray

58 PICK SLOAN MAJOR CAPITAL PROJECTS Transformers & Capacitor Banks Ault Stage 07 transformer installation Badwater Transformer Replacements Cheyenne 2 nd Transformer 230/115-kV Transformer Stage 04 Granby Pumping Plant Transformer Rewinds Shunt Capacitor Banks Bayard City Tap, Laramie Substation, Lyman Substation 115-kV Additions Terry Ranch Road 230-kV Switchyard Weld 230/115-kV Transformer Addition Stage 04 Willoby Switchyard 115-kV Willow Creek KZ1A Transformer Replacement

59 WYOMING CENTRIC ALTERNATIVE A Alternative A : Build a 230-kV Casper (PACE)- Badwater Transmission Line Construct 70 mile transmission line to elevate TOT4B to 890 MVA Add voltage support at Badwater, Lovell, Oregon Basin, Spence and Sheridan

60 WYOMING CENTRIC ALTERNATIVE C2 Alternative C2 : Rebuild 115-kV Casper-Alcova No. 1 for 230-kV operation Establish an Alcova 230-kV substation Add 230/115-kV transformation at Riverton Build 230-kV Transmission line between Alcova- Spence (~14 miles) Add voltage support at Badwater, Lovell, Spence and Sheridan

61 PLATTE VALLEY KV VOLTAGE CONVERSION Phase 1: ISD 2015 Greenfield 230/115-kV substation north of Stegall -200 MVA Transformer Convert Torrington-Wildcat-Gering to 115-kV Construct 115-kV Switchyard at Lyman Yoder Tap Add 115-kV breaker at Gering Rebuild 4 miles of Wildcat-Mitchell Rural as 115-kV double circuit Construct 115/34.5-kV substation at Mitchell Rural City of Bayard Tap: Addition of 1.8 MVAR capacitor Phase 2: ISD 2018 Construct 115-kV Switchyard near East Morrill Tap Convert Lyman-East Morrill to 115-kV Add 115-kV bay at Lyman Yoder Switchyard to connect Lyman-East Morrill 115-kV line

62 PLATTE VALLEY VOLTAGE CONVERSION PROPOSED

63 GERING-GERING VALLEY TL Underground installation of 0.7 miles 34.5-kV Line in Gering, Nebraska, upgrade of controls Status: Design Phase Estimated Budget: $350k ISD: FY12

64 GRANBY-WINDY GAP TL Status: Environmental Impact Study Public Process: December 2011 Record of Decision: March 2012 Estimated Budget: $18,800k ISD: FY14

65 ESTES-FLATIRON 115-KV DOUBLE CIRCUIT Rebuild the two 115-kV lines, about 16 miles each, between the Estes and Flatiron Switchyards with a single structure double circuit Rebuild due to age and condition Improve the ROW to help with vegetation management criteria. Improve Maintenance access to structures. Reduce the environmental footprint by eliminating ~16 miles of transmission line. Current Status: Environmental Assessment, Lands Estimated Budget: $18,800k ISD: FY14

66 LOVELL-NAHNE JENSEN UPRATE Scope: Project to rebuild to Lovell Nahne Jensen 115-kV lines. Approximately 27 miles Re-conductor the line at 115-kV with 477 ACSS conductor. Line rating will be 230 MW Estimated Budget: $2,839k Start: FY11 ISD FY12

67 LOVELL-YELLOWTAIL REBUILDS Phase 1 National Park Service only. Scope : Project to rebuild to LV-YT 115-kV #1 and #2 lines. Each are 11 miles (22 miles total). Initiated due to age and condition 115-kV construction with 795 ACSS conductor. Line rating will be 330 MW each Estimated Budget: $15,000k Start: FY11 ISD: FY12

68 LOVELL-YELLOWTAIL REBUILDS Phase 2 Outside of the NPS: Crow Reservation, and Privately Owned Lands Scope : Project to rebuild to LV-YT 115-kV #1 and #2 lines. Each are 36 miles (70 miles total). Initiated due to age and condition The lines will be rebuilt at 115-kV with 795 ACSS conductor. Line rating will be 330 MW each Increases capacity across Yellowtail South constraint path. Goal: Sufficient capacity to carry entire Yellowtail generation on either line. Estimated Budget: $20,400k Start: FY11 ISD: FY13

69 LOVELL-YELLOWTAIL REBUILD TIMELINE Project Start: 2007 Environmental EA: 2010 Design: 2010 Phase 1 construction contract award: 2011 Phase 2 construction contract award: 2012 Construction completion: 2013 or early 2014

70 WRAY-WRAY TAP REBUILD Western owned, operated. Funded by Tri-State 115-kV Double Circuit Overhead COR-TEN 230-kV construction double circuit, replaced Budget $189k ISD 2012

71 PICK SLOAN TRANSFORMER PROJECTS Ault Stage /115-kV Budget $6,412k ISD: FY12 Weld KV2A 230/115-kV 150 MVA 2012 Budget $5,100k ISD: FY12 Cheyenne Stage /115-kV 250 MVA Budget $4,705k ISD: FY14 Willoby Switchyard (greenfield) Budget $4,425k ISD: FY12 Willow Creek KZ1A Replacement Budget: $1,327k ISD FY12 Lyman Yoder Switchyard Budget: $5,670k ISD FY15

72 PICK SLOAN TRANSFORMER PROJECTS Ault Stage /115-kV Budget $6,412k ISD: FY12 Badwater Transformer Replacements Budget $2,400k ISD: FY12 Cheyenne Stage /115-kV 250 MVA Budget $4,705k ISD: FY14 Granby Transformer Rewinds Budget $2,100k ISD: FY12 Terry Ranch Road 230-kV Switchyard Budget $5,500k ISD: FY13 Weld KV2A 230/115-kV 150 MVA 2012 Budget $5,100k ISD: FY12 Willoby Switchyard (greenfield) Budget $4,425k ISD: FY12 Willow Creek KZ1A Replacement Budget: $1,327k ISD FY12

73 115-KV SHUNT CAPACITOR BANKS Project to improve transfer capabilities. Laramie Substation 8.1 MVAR installation Budget $755k ISD: FY14 Current Status: Design in progress; equipment procurement

74 MAJOR CIP PROJECTS COMPLETED FY11 CRSP Hayden KZ1A Transformer/Reactor Replace $ 3,950k Waterflow Phase Shifter Re-Gasket $ 900k Vernal Battery Room $ 22k Curecanti Oil Spill Containment $ 20k Montrose Marketing Office Remodel $ 239k Craig Maintenance Facility $ 996k Hayden-Kremmling OPGW $1,716k Vernal Substation Breaker Replacement $ 22k Mobile and Heavy Equipment $ 701k

75 CRSP MAJOR CAPITAL PROJECTS Transmission Line CRG-RFL 230-kV Uprate Transformers Archer KV1A/KV2A Transformer Replacements Curecanti KZ2A Transformer Addition Flaming Gorge KW2A, KX2A, KY2B Transformer Replacements Hayden KZ2A Transformer /Reactor Replacement North Park Stage 02 Shiprock Stage 06 Weld 230/115-kV Transformer Addition Stage 04

76 CRAIG-RIFLE 230-KV Scope : Increase current limit on line to a minimum of 2000 amps. RFL Replace kv Breakers, kV disconnect switches and jumpers Re-conductor four spans of TL into Rifle w/acss Re-conductor two spans of t-line into Craig w/acss CRG Replace CT s Estimate: $1,490k ISD: FY12

77 CRSP TRANSFORMER PROJECTS Archer KV1A 200 MVA 230/115/13.8-kV Budget: $3,513k FY13 Archer KV2A 200 MVA 230/115/13.8-kV Budget: $3,100k FY16 Curecanti KZ2A addition Budget: $4,750k FY16 Flaming Gorge KY2B MVA Budget: $5,400k FY18 Flaming Gorge KX2A,KW2A- 5 MVA Budget: $760k FY12 Hayden KZ2A -250 MVA Budget: $6,913k FY13 North Park Stage 02 Budget $275k FY12 Hayden KZ2A MVA Budget: $7,000k FY14 Shiprock Stage 05 Budget: $7,075k FY14 Weld Stage /115-kV Transformer Budget: $5,100k FY12