2015 Base Case Compilation Schedule1

Introduction

The System Review Work Group (SRWG) compiles eleven steady state and dynamic base cases (base cases) to support compliance requirements for Transmission Operator, Transmission Planner, Planning Coordinator and other functional entities and meet WECC’s requirements of MOD-014 and MOD-015.The 2015Base Case Compilation Schedule provides base case descriptions and schedule for base cases to be compiled during the 2016calendar year.

Objectives

The objectives of the 2016Base Case Compilation Schedule are:

  1. Provide a detailed schedule, to appropriate stakeholders, identifying necessary data submittals and data review milestones to compile eleven bases cases.
  2. Identify bases cases to be compiled.A typical annual base case compilation schedule includes the following base cases:
  3. Five operating cases
  4. Three scenario cases
  5. One five-year summer planning case
  6. One five-year winter planning case
  7. One 10-year planning case (alternate winter and summer)
  8. Promote compliance of Transmission Operators, Transmission Planners, Planning Coordinators, and other functional entities with the following NERC Reliability Standards:
  9. MOD-010-0 – Steady-State Data for Transmission System Modeling and Simulation (fully retired 7/1/2016)
  10. MOD-012-0 – Dynamics Data for Transmission System Modeling and Simulation (fully retired 7/1/2016)
  11. MOD-032-1 – Data for Power System Modeling and Analysis (fully effective 7/1/2016)
  12. FAC-008-3 –Facility Ratings
  13. PRC-006-1 – Automatic Underfrequency Load Shedding
  14. PRC-021-1 – Under-Voltage Load Shedding Program Data
  15. TPL-001-4 – Transmission System Planning Performance Requirements
  16. Upon completion of the Base Case Compilation Schedule, fulfill the requirements for WECC as the Reliability Assurer for the following NERC Reliability Standards:
  17. MOD-014-0 – Development of Steady State Models (fully retired 7/1/2016)
  18. MOD-015-0 – Development of Dynamic Models (fully retired 7/1/2016)

Supporting Information

Timely submittal of steady state and dynamics data is necessary forthe 2016Base Case Compilation Schedule to be maintained. In the event of delayed steady state and dynamic data submittals, the SRWG will follow the Late Data Procedure provided in the WECCData Preparation Manual.

Typical base cases are intended to model anticipated load levels, but in some instances may model slightly heavier or slightly lighter than anticipated load levels to achieve desired stressed transfer levels on designated paths.Typical base cases usually include operating cases, five-year cases, ten-year cases, and additional cases as requested by the TSS.Scenario base cases are intended to represent critical operating conditions such as severe weather events, equipment out of service (transmission lines, reactive devices, or static var compensators), unusual generation patterns due to forced outages, and insecure voltage conditions.Some cases may represent extreme load conditions (up to 105 percent of forecasted peak) in a particular subregion. Data submitters should not be reluctant to model a condition due to lack of historical record of the scenario actually occurring.

The 2015 Base Case Compilation Schedule includes the following base cases:

  • Typical base cases
  • Operating base cases
  • 2016-17Heavy Winter
  • 2016-17Light Winter
  • 2017Heavy Spring
  • 2017Heavy Summer
  • 2017Light Summer
  • Five-year base cases
  • 2022Heavy Summer
  • 2021-22Heavy Winter
  • Ten-year base cases
  • 2026-27Heavy Winter
  • 2027Heavy Summer
  • Scenario base cases
  • 20xx Planning Region 10-year Light Load Case
  • 2016Light Springin Desert Southwest

Generation and load levels referred to in the base case description sheets refer to the season being studied.For example, if a case description sheet for a winter base case calls for high hydro in a specific area, this means high levels of hydro generation for a winter condition.In some areas, a high level of hydro generation in the winter may be less than median hydro generation levels in the spring or summer. Also, light loads may be increased in the importing areas or heavy loads may be decreased in exporting areas to represent the desired interchange schedules.Specific information on the desired load levels is contained in the base case description sheets and should be used as a guide in preparing cases.

During the process of compiling each base case, WECC staff and the appropriate functional entities participating in base case compilation process should follow the data requirements and procedures outlined in the WECCData Preparation Manual.Following the documented requirements and procedures will contribute to developing base cases with compatible steady state and dynamic data, help to ensure the Transmission System is adequately modeled, and aid in continual improvement in the accuracy of the data submitted.

Western Electricity Coordinating Council

2016Base Case Compilation Schedule

CASE / DATE DATA
REQUEST
MAILED / DATE DATA
DUE TO
SUB COORD
DATE L&R
INFO DUE TO
SUB COORD / DATE DATA
DUE TO
AREA COORD / DATE DATA
DUE TO
STAFF / STAFF SEND CASE FOR REVIEW / DATE COMMENTS
DUE TO
AREA COORD / DATE AREA COORDINATOR COMMENTS
DUE TO
STAFF / STAFF
FINALIZE
DATE
2018 HS1-S / 07/03/15 / 07/17/15 / 07/24/15 / 08/28/15 / 09/11/15 / 09/25/15 / 10/02/15 / 10/16/15
20XX-Regional / 08/07/15 / 08/21/15 / 08/28/15 / 10/02/15 / 10/16/15 / 10/30/15 / 11/06/15 / 11/20/15
2025-26 HW1 / 09/11/15 / 09/25/15 / 10/02/15 / 11/06/15 / 11/20/15 / 11/27/15 / 12/04/15 / 12/18/15
2026 HS1 / 10/16/15 / 10/30/15 / 11/06/15 / 12/11/15 / 12/25/15 / 01/01/16 / 01/08/16 / 01/22/16
2016-17HW3-OP / 11/20/15 / 12/04/15 / 12/11/15 / 01/15/16 / 01/29/16 / 02/12/16 / 02/19/16 / 03/04/16
2016-17LW2-OP / 11/20/15 / 12/18/15 / 12/25/15 / 01/29/16 / 02/12/16 / 02/26/16 / 03/04/16 / 03/18/16
2021-22 HW2 / 01/15/16 / 01/29/16 / 02/05/16 / 03/11/16 / 03/25/16 / 04/08/16 / 04/15/16 / 04/29/16
2022 HS1 / 02/26/16 / 03/11/16 / 03/18/16 / 04/22/16 / 05/06/16 / 05/13/16 / 05/20/16 / 06/03/16
2017 HSP1-OP / 04/01/16 / 04/15/16 / 04/22/16 / 05/27/16 / 06/10/16 / 06/17/16 / 06/24/16 / 07/08/16
2017HS2-OP / 05/06/16 / 05/20/16 / 05/27/16 / 07/01/16 / 07/15/16 / 07/22/16 / 07/29/16 / 08/12/16
2017LS1-OP / 05/06/16 / 06/03/16 / 06/10/16 / 07/15/16 / 07/22/16 / 07/29/16 / 08/12/16 / 08/26/16
2016LSP2-S / 07/01/16 / 07/15/16 / 07/22/16 / 08/26/16 / 09/09/16 / 09/23/16 / 09/30/16 / 10/14/16
20XX-Regional / 08/05/16 / 08/19/16 / 08/26/16 / 09/30/16 / 10/14/16 / 10/28/16 / 11/04/16 / 11/18/16
2026-27HW1 / 09/09/16 / 09/23/16 / 09/30/16 / 11/04/16 / 11/18/16 / 11/25/16 / 12/02/16 / 12/16/16
2027HS1 / 10/14/16 / 10/28/16 / 11/04/16 / 12/09/16 / 12/23/16 / 12/30/16 / 01/06/17 / 01/20/17
2015 Base Cases

1

2016-2017HEAVY WINTER – 17HW3-OPCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:December 11, 2015
    To Staff:January 15, 2016
  2. PURPOSE:OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HEAVY FLOWS FROM NORTHWEST TO CALIFORNIA.
  3. ITEMS TO BE PREPARED:From Case2015-16HW3 Operating Case
    Stability DataMaster Dynamics File[1]
    Significant ChangesFrom Existing System
  4. LOADS[2]:Expected peak load for the months of December - February
  5. TIME:1800 – 2000 hours MST
  6. GENERATIONHYDROTHERMALRENEWABLE[3]

CanadaHigh/Median----
NorthwestHigh/MedianHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroMedian----
Northern CaliforniaLowHigh--
Southern CaliforniaLowHigh--
Arizona/New Mexico/Southern NevadaLowHigh--

  1. INTERCHANGE[4]CONDITIONTARGET% RATING

Canada to NorthwestModerate-140046%
Northwest to California/Nevada
(COI/RATS)Moderate200042%
(PDCI)Heavy150075[5]%
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to NorthwestModerate140064%
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)Moderate4000/500043%/47%
Intermountain to Adelanto DCHeavy185096%
Path 45 (San Diego to CFE)------
Midway to VincentHeavy280093%

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2016-2017LIGHT WINTER – 17LW2-OPCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:December 25, 2015
    To Staff:January29, 2016
  1. PURPOSE:OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS DURING LIGHT LOAD PERIODS.
  2. ITEMS TO BE PREPARED:From Case2015-16LW2 Operating Case
    Stability DataMaster Dynamics File[6]
    Significant ChangesFrom Existing System
  3. LOADS[7]:Expected minimum load for the months of December - February
  4. TIME: Early morning (0300 to 0500 hours MST), winter conditions.
  5. GENERATIONHYDROTHERMALRENEWABLE[8]

CanadaMedian/Low----
NorthwestLowMedian/Low--
Idaho/MontanaMedianMedian--
Colorado/WyomingLowMedian--
Northern California HydroMedian----
Northern CaliforniaLowMedian--
Southern California--Median--
Arizona/New Mexico/Southern Nevada--Median--

  1. INTERCHANGE[9]CONDITIONTARGET% RATING

Canada to NorthwestLow-140046%
Northwest to California/Nevada
(COI/RATS)Moderate0<-50014%
(PDCI)Moderate0<-50025[10]%
Path 15 S-NHeavy345064%
Wyoming/Utah/Idaho to NorthwestHeavy>100042%
Montana to NorthwestHeavy180082%
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)Moderate5100/690054%/65%
Intermountain to Adelanto DCHeavy185077%
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2021-2022HEAVY WINTER – 22HW2CASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:March18, 2016
    To Staff:April 22, 2016
  1. PURPOSE:GENERAL 5-YEAR CASE - WITH TYPICAL FLOWS THROUGHOUT WECC.
  2. ITEMS TO BE PREPARED:From Case2020-21HW1
    Stability DataMaster Dynamics File[11]
    Significant ChangesFrom Existing System
  3. LOADS[12]:Expected peak load for the months of December - February
  4. TIME:1800 – 2000 hours MST
  5. GENERATIONHYDROTHERMALRENEWABLE[13]

CanadaHigh----
NorthwestHighHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroMedian----
Northern CaliforniaLowMedian--
Southern CaliforniaLowMedian--
Arizona/New Mexico/Southern NevadaLowMedian--

  1. INTERCHANGE[14]CONDITIONTARGET% RATING

Canada to NorthwestModerate-140046%
Northwest to California/Nevada
(COI/RATS)Moderate<0--
(PDCI)Moderate<0--
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to Northwest------
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)----/----/--
Intermountain to AdelantoDC------
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2022HEAVY SUMMER– 22HS1CASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:April 22, 2016
    To Staff:May 27, 2016
  1. PURPOSE:GENERAL 5-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
  2. ITEMS TO BE PREPARED:From Case21HS2
    Stability DataMaster Dynamics File[15]
    Significant ChangesFrom Existing System
  3. LOADS[16]:Expected peak load for the months of June - August
  4. TIME:1500 to 1700 hours MDT
  5. GENERATIONHYDROTHERMALRENEWABLE[17]

CanadaHigh----
NorthwestMedianHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroHigh----
Northern CaliforniaHighHigh--
Southern CaliforniaLowHigh--
Arizona/New Mexico/Southern NevadaLowHigh--

  1. INTERCHANGE[18]CONDITIONTARGET% RATING

Canada to NorthwestHigh>200066%
Northwest to California/Nevada
(COI/RATS)High400083%
(PDCI)High3220100%
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to Northwest------
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)----/----/--
Intermountain to AdelantoDC------
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2017 HEAVY SPRING – 17HSP1-OPCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:February 05, 2016
    To Staff:March 11, 2016
  1. PURPOSE:OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HIGH FLOWS FROM NORTHWEST TO CALIFORNIA.
  2. ITEMS TO BE PREPARED:From Case16HSP1 Operating Case
    Stability DataMaster Dynamics File[19]
    Significant ChangesFrom Existing System
  3. LOADS[20]: Expected peak load for the months of March - May
  4. TIME: 1600 to 2000 hours MDT.
  5. GENERATIONHYDROTHERMALRENEWABLE[21]

CanadaMedian----
NorthwestHighLow--
Idaho/MontanaHighMedian--
Colorado/WyomingMedianMedian--
Northern California HydroMedian----
Northern CaliforniaHighLow--
Southern California------
Arizona/New Mexico/Southern NevadaMedianMedian--

  1. INTERCHANGE[22]CONDITIONTARGET% RATING

Canada to NorthwestModerate-100050%
Northwest to California/Nevada
(COI/RATS)Maximum4800100%
(PDCI)Maximum200065%
Path 15 S-N------
Wyoming/Utah/Idaho to NorthwestLow40017%
Montana to NorthwestModerate150068%
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)Low3600/450038%/43%
Intermountain to Adelanto DCHeavy185077%
Path 45 (San Diego to CFE)------
Midway to VincentHeavy280093%

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2017HEAVY SUMMER– 17HS2-OPCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:April 22, 2016
    To Staff:May 27, 2016
  1. PURPOSE:OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HEAVY FLOWS TO CALIFORNIA FROM THE NORTHWEST AND MODERATE FLOWS ELSEWHERE.
  2. ITEMS TO BE PREPARED:From Case16HS4-Operating Case
    Stability DataMaster Dynamics File[23]
    Significant ChangesFrom Existing System
  3. LOADS[24]:Expected peak load for the months of June - August
  4. TIME: Peak time 1500 to 1700 hours MDT
  5. GENERATIONHYDROTHERMALRENEWABLE[25]

CanadaHigh----
NorthwestMedian/HighHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroHigh----
Northern CaliforniaHighHigh--
Southern CaliforniaLowHigh--
Arizona/New Mexico/Southern NevadaLowHigh--

  1. INTERCHANGE[26]CONDITIONTARGET% RATING

Canada to NorthwestHeavy230073%
Northwest to California/Nevada
(COI/RATS)Heavy4800100%
(PDCI)Heavy200065%
Path 15 S-N------
Wyoming/Utah/Idaho to NorthwestLight----
Montana to NorthwestModerate120055%
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)Moderate3000/580032%/57%
Intermountain to Adelanto DCHeavy166069%
Path 45 (San Diego to CFE)------
Midway to VincentHeavy4000100%

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2017LIGHT SUMMER– 17LS1-OPCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:June 10, 2016
    To Staff:July 15, 2016
  1. PURPOSE:OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS DURING LIGHT LOAD PERIODS. MODERATE FLOWS FROM THE NORTHWEST TO CALIFORNIA AND MODERATE TO HEAVY FLOWS FROM IDAHO/MONTANA TO THE NORTHWEST.
  2. ITEMS TO BE PREPARED:From Case16LS1-Operating Case
    Stability DataMaster Dynamics File[27]
    Significant ChangesFrom Existing System
  3. LOADS[28]:Expected minimum load for the months of June - August
  4. TIME:0400 to 0600 hours MDT
  5. GENERATIONHYDROTHERMALRENEWABLE[29]

CanadaMedian----
NorthwestMedian----
Idaho/MontanaMedianHigh--
Colorado/WyomingMedianMedian--
Northern California HydroMedian----
Northern California--High--
Southern California------
Arizona/New Mexico/Southern Nevada------

  1. INTERCHANGE[30]CONDITIONTARGET% RATING

Canada to NorthwestModerate200063%
Northwest to California/Nevada
(COI/RATS)Moderate360075%
(PDCI)Moderate200065%
Path 15 S-N------
Wyoming/Utah/Idaho to NorthwestModerate160067%
Montana to NorthwestMaximum2200100%
Utah/Colorado to Southwest------%
Southwest to Calif. (EOR/WOR)Moderate4600/590049%/55%
Intermountain to Adelanto DCHeavy185077%
Path 45 (San Diego to CFE)------
Midway to VincentLight150050%

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2016LIGHT SPRING– 16LSP2-SCASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:July 22, 2016
    To Staff:August26, 2016
  1. PURPOSE:Heavy summer loads throughout WECC region to capture high imports to Southern California.
  2. ITEMS TO BE PREPARED:From Case(TBD)
    Stability DataMaster Dynamics File[31]
    Significant ChangesFrom Existing System
  3. LOADS[32]:45% of summer peak conditions to represent the months of March – April in the Desert Southwest
  4. TIME:Afternoon hours (1800 to 2000 hours MDT)
  5. GENERATIONHYDROTHERMALRENEWABLE[33]

Canada------
Northwest------
Idaho/Montana------
Colorado/Wyoming------
Northern California Hydro------
Northern California------
Southern California------
Arizona/New Mexico/Southern Nevada------

  1. INTERCHANGE[34]CONDITIONTARGET% RATING

Canada to Northwest------
Northwest to California/Nevada
(COI/RATS)------
(PDCI)------
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to Northwest------
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)------
Intermountain to Adelanto DC------
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

REGIONAL PLANNINGCASECASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:August26, 2016
    To Staff:September30, 2016
  1. PURPOSE:SCENARIO CASE – BASED ON PLANNING REGION REQUEST
  2. ITEMS TO BE PREPARED:From Case20xx-Regional
    Stability DataMaster Dynamics File[35]
    Significant ChangesFrom Existing System
  3. LOADS[36]:Planning RegionSpec
  4. TIME:Planning RegionSpec
  5. GENERATIONHYDROTHERMALRENEWABLE[37]

Canada------
Northwest------
Idaho/Montana------
Colorado/Wyoming-----
Northern California Hydro------
Northern California-----
Southern California------
Arizona/New Mexico/Southern Nevada----

  1. INTERCHANGE[38]CONDITIONTARGET% RATING

Canada to Northwest--TBD--
Northwest to California/Nevada
(COI/RATS)--TBD--
(PDCI)--TBD--
Path 15 S-N--TBD--
Wyoming/Utah/Idaho to Northwest--TBD--
Montana to Northwest--TBD--
Utah/Colorado to Southwest--TBD--
Southwest to Calif. (EOR/WOR)--TBD/TBD--/--
Intermountain to Adelanto DC--TBD--
Path 45 (San Diego to CFE)--TBD--
Midway to Vincent--TBD--

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2026-27HEAVY WINTER– 27HW1CASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:September30, 2016
    To Staff:November 04, 2016
  1. PURPOSE:GENERAL 10-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
  2. ITEMS TO BE PREPARED:From Case2025-26HW1
    Stability DataMaster Dynamics File[39]
    Significant ChangesFrom Existing System
  3. LOADS[40]:Expected peak load for the months of December - February
  4. TIME:1800 to 2000 hours MST
  5. GENERATIONHYDROTHERMALRENEWABLE[41]

CanadaHigh----
NorthwestHighHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroMedian----
Northern CaliforniaLowMedian--
Southern CaliforniaLowMedian--
Arizona/New Mexico/Southern NevadaLowMedian--

  1. INTERCHANGE[42]CONDITIONTARGET% RATING

Canada to Northwest------
Northwest to California/Nevada
(COI/RATS)------
(PDCI)------
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to Northwest------
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)----/----/--
Intermountain to AdelantoDC------
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

2027HEAVY SUMMER– 27HS1CASE DESCRIPTION

  1. CASE DUE DATES:To Area Coordinator:November 04, 2016
    To Staff:December 09, 2016
  1. PURPOSE:GENERAL 10-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
  2. ITEMS TO BE PREPARED:From Case2026HS1
    Stability DataMaster Dynamics File[43]
    Significant ChangesFrom Existing System
  3. LOADS[44]:Expected peak load for the months of June - August
  4. TIME:1500 to 1700 hours MDT
  5. GENERATIONHYDROTHERMALRENEWABLE[45]

CanadaHigh----
NorthwestMedianHigh--
Idaho/MontanaMedianHigh--
Colorado/WyomingLowHigh--
Northern California HydroHigh----
Northern CaliforniaHighHigh--
Southern CaliforniaLowHigh--
Arizona/New Mexico/Southern NevadaLowHigh--

  1. INTERCHANGE[46]CONDITIONTARGET% RATING

Canada to Northwest------
Northwest to California/Nevada
(COI/RATS)------
(PDCI)------
Path 15 S-N------
Wyoming/Utah/Idaho to Northwest------
Montana to Northwest------
Utah/Colorado to Southwest------
Southwest to Calif. (EOR/WOR)----/----/--
Intermountain to AdelantoDC------
Path 45 (San Diego to CFE)------
Midway to Vincent------

NOTE: Where no target flows are specified actual scheduled transfers should be based on each area’s load and generation (deficiency/surplus) balance and economical generation dispatch. The objective of the case should be kept in mind and schedules should be coordinated between areas prior to data submittal.

WECC BASE CASES LISTED BY YEAR OF COMPILATION

(i.e. 13 = 2013 COMPILED BASE CASE)
Winter Cases Identified by the second year of case (e.g. 14 for 13-14 HW1)
Year / WINTER / SPRING / SUMMER / AUTUMN
Light / Heavy / Light / Heavy / Light / Heavy / Light / Heavy
2011 / 10OP / 05, 10OP / 07S / 10OP / 10OP / 06, 10OP
2012 / 05S, 11OP / 11OP / 11OP / 11OP / 02, 07G, 10S, 11OP
2013 / 08S, 12OP / 07, 12OP / 12OP / 12OP / 08G, 12OP / 05
2014 / 13OP / 08G, 13OP / 13OP / 13OP / 03, 07S, 09S, 13OP / 09S
2015 / 13S,
14OP / 04, 09G,
14OP / 14OP / 14OP / 06S, 09G, 12S, 14OP / 11S
2016 / 15OP / 08S, 10G, 15OP / 12S, 16S** / 15OP / 15OP / 05, 10G, 15OP / 10S
2017 / 11S, 16OP / 06, 11G, 16OP / 14S / 16OP / 16OP / 11G, 16OP
2018 / 10S, 12G / 09S / 07G, 12G, 15S**
2019 / 08G, 13G / 08G, 13G
2020 / 14G / 09G, 14G
2021 / 15G / 10G, 15G
2022 / 11G, 16G / 12S / 11S / 16G
2023 / 12G
2024 / 13G / 13S
2025 / 14G / 14G
2026 / 15G / 15G
2027 / 16G / 16G
S - Scenario Case (2) / Current Compilation Schedule / ** Light Spring scenario
*** Planning Region Case
G - General/Planning Case (4)
OP - Operating/OTC Case (5) / Proposed Cases
V - Validation Case (placeholder)

Approved By: