WECC Guideline
2016 Base Case Compilation Schedule
Date: DRAFT
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 2015 Base Case Compilation Schedule provides base case descriptions and schedule for base cases
to be compiled during the 2016 calendar year.
Objectives
The objectives of the 2016 Base Case Compilation Schedule are:
I.
Provide a detailed schedule, to appropriate stakeholders, identifying necessary data submittals
and data review milestones to compile eleven bases cases.
II.
Identify bases cases to be compiled. A typical annual base case compilation schedule includes
the following base cases:
a. Five operating cases
b. Three scenario cases
c. One five-year summer planning case
d. One five-year winter planning case
e. One 10-year planning case (alternate winter and summer)
III.
Promote compliance of Transmission Operators, Transmission Planners, Planning Coordinators,
and other functional entities with the following NERC Reliability Standards:
a. MOD-010-0 – Steady-State Data for Transmission System Modeling and Simulation (fully
retired 7/1/2016)
b. MOD-012-0 – Dynamics Data for Transmission System Modeling and Simulation (fully
retired 7/1/2016)
c. MOD-032-1 – Data for Power System Modeling and Analysis (fully effective 7/1/2016)
d. FAC-008-3 – Facility Ratings
e.
PRC-006-1 – Automatic Underfrequency Load Shedding
f. PRC-021-1 – Under-Voltage Load Shedding Program Data
g. TPL-001-4 – Transmission System Planning Performance Requirements
WESTERN ELECTRICITY COORDINATING COUNCIL
155 North 400 West, Suite 200
Salt Lake City, Utah 84103-1114
2015 Base Case Compilation Schedule
IV.
2
Upon completion of the Base Case Compilation Schedule, fulfill the requirements for WECC as
the Reliability Assurer for the following NERC Reliability Standards:
a. MOD-014-0 – Development of Steady State Models (fully retired 7/1/2016)
b. MOD-015-0 – Development of Dynamic Models (fully retired 7/1/2016)
Supporting Information
Timely submittal of steady state and dynamics data is necessary for the 2016 Base 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 WECC Data 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
o Operating base cases

2016-17 Heavy Winter

2016-17 Light Winter

2017 Heavy Spring

2017 Heavy Summer

2017 Light Summer
o Five-year base cases

2022 Heavy Summer

2021-22 Heavy Winter
o Ten-year base cases


2026-27 Heavy Winter

2027 Heavy Summer
Scenario base cases
o 20xx Planning Region 10-year Light Load Case
o 2016 Light Spring in Desert Southwest
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3
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 WECC Data 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.
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2016 Base 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
20XX-Regional
2025-26 HW1
2026 HS1
07/03/15
08/07/15
09/11/15
10/16/15
07/17/15
08/21/15
09/25/15
10/30/15
07/24/15
08/28/15
10/02/15
11/06/15
08/28/15
10/02/15
11/06/15
12/11/15
09/11/15
10/16/15
11/20/15
12/25/15
09/25/15
10/30/15
11/27/15
01/01/16
10/02/15
11/06/15
12/04/15
01/08/16
10/16/15
11/20/15
12/18/15
01/22/16
2016-17 HW3-OP
2016-17 LW2-OP
2022 HA1
2022 LA1
2021-22 HW2
2021-22 LW2
11/20/15
12/04/15
12/18/15
01/01/16
01/15/16
01/29/16
12/04/15
12/18/15
01/01/16
01/15/16
01/29/16
02/12/16
12/11/15
12/25/15
01/08/16
01/22/16
02/05/16
02/19/16
01/15/16
01/29/16
02/12/16
02/26/16
03/11/16
03/25/16
01/29/16
02/12/16
02/26/16
03/11/16
03/25/16
04/08/16
02/12/16
02/26/16
03/11/16
03/25/16
04/08/16
04/22/16
02/19/16
03/04/16
03/18/16
04/01/16
04/15/16
04/29/16
03/04/16
03/18/16
04/01/16
04/15/16
04/29/16
05/13/16
2022 HSP1
2022 LSP1
2022 HS1
2022 LS1
2017 HSP1-OP
2017 LSP1-OP
02/12/16
02/26/16
03/18/16
04/01/16
04/15/16
04/29/16
02/26/16
03/11/16
04/01/16
04/15/16
04/29/16
05/13/16
03/04/16
03/18/16
04/08/16
04/22/16
05/06/16
05/20/16
04/08/16
04/22/16
05/13/16
05/27/16
06/10/16
06/24/16
04/22/16
05/06/16
05/27/16
06/10/16
06/24/16
07/08/16
05/06/16
05/20/16
06/10/16
06/24/16
07/08/16
07/22/16
05/13/16
05/27/16
06/17/16
07/01/16
07/15/16
07/29/16
05/27/16
06/10/16
07/01/16
07/15/16
07/29/16
08/12/16
2017 HS2-OP
2017 LS1-OP
2017 HA1-OP
2017 LA1-OP
2026-27 HW1
2026-27 LW1
05/13/16
05/27/16
06/10/16
06/24/16
07/15/16
07/29/16
05/27/16
06/10/16
06/24/16
07/08/16
07/29/16
08/12/16
06/03/16
06/17/16
07/01/16
07/15/16
08/05/16
08/19/16
07/08/16
07/22/16
08/05/16
08/19/16
09/09/16
09/23/16
07/22/16
08/05/16
08/19/16
09/02/16
09/23/16
10/07/16
08/05/16
08/19/16
09/02/16
09/16/16
10/07/16
10/21/16
08/12/16
08/26/16
09/09/16
09/23/16
10/14/16
10/28/16
08/26/16
09/09/16
09/23/16
10/07/16
10/28/16
11/11/16
4
2027 HSP1
08/12/16
08/26/16
09/02/16
10/07/16
10/21/16
11/04/16
11/11/16
11/25/16
2027 LSP1
2027 HS1
2027 LS1
2027 HA1
2027 LA1
08/26/16
09/09/16
09/23/16
10/07/16
10/21/16
09/09/16
09/23/16
10/07/16
10/21/16
11/04/16
09/16/16
09/30/16
10/14/16
10/28/16
11/11/16
10/21/16
11/04/16
11/18/16
12/02/16
12/16/16
11/04/16
11/18/16
12/02/16
12/16/16
12/30/16
11/18/16
12/02/16
12/16/16
12/30/16
01/12/17
11/25/16
12/09/16
12/23/16
01/06/17
01/20/17
12/09/16
12/23/16
01/06/17
01/20/17
02/03/17
2015 Base Cases
5
2016-2017 HEAVY WINTER – 17HW3-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HEAVY FLOWS
FROM NORTHWEST TO CALIFORNIA.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of December - February
V.
TIME: 1800 – 2000 hours MST
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High/Median
High/Median
Median
Low
Median
Low
Low
Low
-High
High
High
-High
High
High
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Moderate
-1400
46%
Moderate
Heavy
--Moderate
-Moderate
Heavy
-Heavy
2000
1500
--1400
-4000/5000
1850
-2800
42%
755%
--64%
-43%/47%
96%
-93%
VII.
To Area Coordinator: December 11, 2015
To Staff:
January 15, 2016
From Case
Stability Data
Significant Changes
2015-16HW3 Operating Case
Master Dynamics File1
From Existing System
1
Only Corrections to the Master Dynamics File (MDF) or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
5
PDCI de-rated during construction to 2000MW.
6
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.
7
2016-2017 LIGHT WINTER – 17LW2-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS DURING LIGHT LOAD
PERIODS.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected minimum load for the months of December - February
V.
TIME: Early morning (0300 to 0500 hours MST), winter conditions.
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
Median/Low
Low
Median
Low
Median
Low
---
-Median/Low
Median
Median
-Median
Median
Median
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Low
-1400
46%
Moderate
Moderate
Heavy
Heavy
Heavy
-Moderate
Heavy
---
0<-500
0<-500
3450
>1000
1800
-5100/6900
1850
---
14%
255%
64%
42%
82%
-54%/65%
77%
---
VII.
To Area Coordinator: December 25, 2015
To Staff:
January 29, 2016
From Case
Stability Data
Significant Changes
2015-16LW2 Operating Case
Master Dynamics File1
From Existing System
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
5
PDCI de-rated during construction to 2000MW.
8
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.
9
2017 HEAVY SPRING – 17HSP1-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HIGH FLOWS
FROM NORTHWEST TO CALIFORNIA.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of March - May
V.
TIME: 1600 to 2000 hours MDT.
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
Median
High
High
Median
Median
High
-Median
-Low
Median
Median
-Low
-Median
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Moderate
-1000
50%
Maximum
Maximum
-Low
Moderate
-Low
Heavy
-Heavy
4800
2000
-400
1500
-3600/4500
1850
-2800
100%
65%
-17%
68%
-38%/43%
77%
-93%
VII.
To Area Coordinator: February 05, 2016
To Staff:
March 11, 2016
From Case
Stability Data
Significant Changes
16HSP1 Operating Case
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
10
2021-2022 HEAVY WINTER – 22HW2
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: GENERAL 5-YEAR CASE - WITH TYPICAL FLOWS THROUGHOUT WECC.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of December - February
V.
TIME: 1800 – 2000 hours MST
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High
High
Median
Low
Median
Low
Low
Low
-High
High
High
-Median
Median
Median
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Moderate
-1400
46%
Moderate
Moderate
---------
<0
<0
------/-----
--------/-----
VII.
To Area Coordinator: March 18, 2016
To Staff:
April 22, 2016
From Case
Stability Data
Significant Changes
2020-21 HW1
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
11
2022 HEAVY SUMMER– 22HS1
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: GENERAL 5-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of June - August
V.
TIME: 1500 to 1700 hours MDT
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High
Median
Median
Low
High
High
Low
Low
-High
High
High
-High
High
High
---------
INTERCHANGE4
CONDITION
TARGET
% 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
High
>2000
66%
High
High
---------
4000
3220
------/-----
83%
100%
------/-----
VII.
To Area Coordinator: April 22, 2016
To Staff:
May 27, 2016
From Case
Stability Data
Significant Changes
21HS2
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
12
2017 HEAVY SUMMER– 17HS2-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: OPERATING CASE – TO REPRESENT ANTICIPATED OPERATING CONDITIONS WITH HEAVY FLOWS TO
CALIFORNIA FROM THE NORTHWEST AND MODERATE FLOWS ELSEWHERE.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of June - August
V.
TIME: Peak time 1500 to 1700 hours MDT
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High
Median/High
Median
Low
High
High
Low
Low
-High
High
High
-High
High
High
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Heavy
2300
73%
Heavy
Heavy
-Light
Moderate
-Moderate
Heavy
-Heavy
4800
2000
--1200
-3000/5800
1660
-4000
100%
65%
--55%
-32%/57%
69%
-100%
VII.
To Area Coordinator: April 22, 2016
To Staff:
May 27, 2016
From Case
Stability Data
Significant Changes
16HS4-Operating Case
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
13
2017 LIGHT SUMMER– 17LS1-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
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.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected minimum load for the months of June - August
V.
TIME: 0400 to 0600 hours MDT
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
Median
Median
Median
Median
Median
----
--High
Median
-High
---
---------
INTERCHANGE4
CONDITION
TARGET
% 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
Moderate
2000
63%
Moderate
Moderate
-Moderate
Maximum
-Moderate
Heavy
-Light
3600
2000
-1600
2200
-4600/5900
1850
-1500
75%
65%
-67%
100%
--%
49%/55%
77%
-50%
VII.
To Area Coordinator: June 10, 2016
To Staff:
July 15, 2016
From Case
Stability Data
Significant Changes
16LS1-Operating Case
Master Dynamics File1
From Existing System
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
14
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.
15
2016 LIGHT SPRING– 16LSP2-S
CASE DESCRIPTION
VIII.
CASE DUE DATES:
To Area Coordinator: July 22, 2016
To Staff:
August 26, 2016
IX.
PURPOSE: Heavy summer loads throughout WECC region to capture high imports to Southern California.
X.
ITEMS TO BE PREPARED:
XI.
LOADS2: 45% of summer peak conditions to represent the months of March – April in the Desert Southwest
XII.
TIME: Afternoon hours (1800 to 2000 hours MDT)
XIII.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
---------
---------
---------
INTERCHANGE4
CONDITION
TARGET
% 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
--
--
--
-----------
-----------
-----------
XIV.
From Case
Stability Data
Significant Changes
(TBD)
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
16
REGIONAL PLANNING CASE
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: SCENARIO CASE – BASED ON PLANNING REGION REQUEST
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Planning Region Spec
V.
TIME: Planning Region Spec
VI.
VII.
To Area Coordinator: August 26, 2016
To Staff:
September 30, 2016
From Case
Stability Data
Significant Changes
20xx-Regional
Master Dynamics File1
From Existing System
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
--------
------
---------
INTERCHANGE4
CONDITION
TARGET
% 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
--
TBD
--
-----------
TBD
TBD
TBD
TBD
TBD
TBD
TBD/TBD
TBD
TBD
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
17
2026-27 HEAVY WINTER– 27HW1
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: GENERAL 10-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of December - February
V.
TIME: 1800 to 2000 hours MST
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High
High
Median
Low
Median
Low
Low
Low
-High
High
High
-Median
Median
Median
---------
INTERCHANGE4
CONDITION
TARGET
% 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
--
--
--
-----------
--------/-----
--------/-----
VII.
To Area Coordinator: September 30, 2016
To Staff:
November 04, 2016
From Case
Stability Data
Significant Changes
2025-26HW1
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
18
2027 HEAVY SUMMER– 27HS1
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: GENERAL 10-YEAR CASE – WITH TYPICAL FLOWS THROUGHOUT WECC.
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Expected peak load for the months of June - August
V.
TIME: 1500 to 1700 hours MDT
VI.
GENERATION
HYDRO
THERMAL
RENEWABLE3
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
High
Median
Median
Low
High
High
Low
Low
-High
High
High
-High
High
High
---------
INTERCHANGE4
CONDITION
TARGET
% 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
--
--
--
-----------
--------/-----
--------/-----
VII.
To Area Coordinator: November 04, 2016
To Staff:
December 09, 2016
From Case
Stability Data
Significant Changes
2026HS1
Master Dynamics File1
From Existing System
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.
1
Only Corrections to the MDF or new data for the MDF need be submitted.
2
All loads are coincident unless indicated otherwise. Specified time supersedes specified percentage of load.
3
Renewables should be based on individual entities’ Renewable Portfolio Standard.
4
Targets may be altered as anticipated operating conditions become more clearly known.
19
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)
WINTER
Heavy
05, 10OP
Heavy
10OP
SUMMER
Light
Heavy
10OP
06, 10OP
11OP
11OP
11OP
02, 07G,
10S, 11OP
08S, 12OP
07, 12OP
12OP
12OP
08G,
12OP
2014
13OP
08G, 13OP
13OP
13OP
03, 07S,
09S, 13OP
2015
13S,
14OP
04, 09G,
14OP
14OP
14OP
06S, 09G,
12S, 14OP
2016
15OP
08S, 10G,
15OP
12S, 16S**
15OP
15OP
05, 10G,
15OP
2017
11S,
16OP
06, 11G,
16OP
14S
16OP
16OP
11G, 16OP
Year
2011
Light
10OP
2012
05S, 11OP
2013
SPRING
Light
07S
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
2023
16G
12G
2024
13G
13S
2025
14G
14G
2026
15G
15G
2027
16G
16G
S - Scenario Case (2)
G - General/Planning Case (4)
OP - Operating/OTC Case (5)
V - Validation Case (placeholder)
Current
Compilation
Schedule
Proposed
Cases
** Light Spring scenario
*** Planning Region Case
20
AUTUMN
Light
Heavy
05
09S
11S
10S
Approved By:
Approving Committee, Entity or Person
Date
21