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, MOD-015 and
MOD-032. The 2016 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)
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.
WESTERN ELECTRICITY COORDINATING COUNCIL
155 North 400 West, Suite 200
Salt Lake City, Utah 84103-1114
2015 Base Case Compilation Schedule
2
The 2016 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 2017 Light Spring in Desert Southwest
o 2018 Light Autumn in Northwest
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.
Interchange Schedules in the base case description sheets refer to the target flows that should be
reached to represent anticipated flow levels and direction for the season being studied. Interchange
definitions are included below for reference.
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.
W
E S T E R N
E
L E C T R I C I T Y
C
O O R D I N A T I N G
C
O U N C I L
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
07/03/15
08/07/15
09/11/15
07/17/15
08/21/15
09/25/15
07/24/15
08/28/15
10/02/15
08/28/15
10/02/15
11/06/15
09/11/15
10/16/15
11/20/15
09/25/15
10/30/15
11/27/15
10/02/15
11/06/15
12/04/15
10/16/15
11/20/15
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
2016-17 HW3-OP
2016-17 LW2-OP
2017 HSP1-OP
2021-22 HW2
11/20/15
11/20/15
01/15/16
02/26/16
12/04/15
12/18/15
01/29/16
03/11/16
12/11/15
12/25/15
02/05/16
03/18/16
01/15/16
01/29/16
03/11/16
04/22/16
01/29/16
02/12/16
03/25/16
05/06/16
02/12/16
02/26/16
04/08/16
05/13/16
02/19/16
03/04/16
04/15/16
05/20/16
03/04/16
03/18/16
04/29/16
06/03/16
2022 HS1
2017 HS2-OP
2017 LS1-OP
2017 LSP2-S
2018 LA1-S
2026-27 HW1
04/01/16
05/06/16
05/06/16
07/01/16
08/05/16
09/09/16
04/15/16
05/20/16
06/03/16
07/15/16
08/19/16
09/23/16
04/22/16
05/27/16
06/10/16
07/22/16
08/26/16
09/30/16
05/27/16
07/01/16
07/15/16
08/26/16
09/30/16
11/04/16
06/10/16
07/15/16
07/22/16
09/09/16
10/14/16
11/18/16
06/17/16
07/22/16
07/29/16
09/23/16
10/28/16
11/25/16
06/24/16
07/29/16
08/12/16
09/30/16
11/04/16
12/02/16
07/08/16
08/12/16
08/26/16
10/14/16
11/18/16
12/16/16
2027 HS1
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
3
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI6 (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
Moderate
-14005
46%
Moderate
Heavy
--Moderate
--
2000
1500
--1400
--
42%
756%
--64%
--
Moderate
Heavy
-Heavy
4000/5000
1850
-2800
43%/47%
96%
-70%
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
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 Master Dynamics File (MDF) or new data for the MDF need be submitted.
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
Minimum flows are required to represent the Canadian Entitlement.
6
PDCI de-rated during construction to 2000MW.
2
4
2016-2017 LIGHT WINTER – 17LW2-OP
CASE DESCRIPTION
I.
CASE DUE DATES:
To Area Coordinator: December 25, 2015
To Staff:
January 29, 2016
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:
From Case
Stability Data
Significant Changes
HYDRO
THERMAL
RENEWABLE3
Median/Low
Low
Median
Low
Median
Low
---
-Median/Low
Median
Median
-Median
Median
Median
---------
INTERCHANGE4:
CONDITION
TARGET
% RATING
Canada to Northwest (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
Low
-14005
46%
Moderate
Moderate
Heavy
Heavy
Heavy
--
0<-500
0<-500
3450
>1000
2000
--
14%
256%
64%
42%
91%
--
Moderate
Heavy
---
5100/6900
1850
---
54%/65%
77%
---
Canada
Northwest
Idaho/Montana
Colorado/Wyoming
Northern California Hydro
Northern California
Southern California
Arizona/New Mexico/Southern Nevada
VII.
2015-16LW2 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.
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
Minimum flows are required to represent the Canadian Entitlement.
6
PDCI de-rated during construction to 2000MW.
2
5
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
Moderate
-14005
46%
Maximum
Maximum
-Low
Moderate
--
4800
2000
--400
1500
--
100%
62%
-17%
68%
--
Low
Heavy
-Heavy
3600/4500
1850
-2800
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.
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
Minimum flows are required to represent the Canadian Entitlement.
2
6
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
VII.
To Area Coordinator: March 18, 2016
To Staff:
April 22, 2016
From Case
Stability Data
Significant Changes
Canada to Northwest (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
2020-21 HW1
Master Dynamics File1
From Existing System
5
Moderate
-1400
46%
-------
-------
-------
-----
--/-----
--/-----
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.
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
Minimum flows are required to represent the Canadian Entitlement.
2
7
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
High
>2000
66%
-------
-------
-------
-----
--/-----
--/-----
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.
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.
2
8
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
Heavy
2300
73%
Heavy
Heavy
-Light
Moderate
--
4800
2000
--1200
--
100%
65%
--55%
--
Moderate
Heavy
-Heavy
3000/5800
1660
-4000
32%/57%
69%
-100%
VII.
To Area Coordinator: May 27, 2016
To Staff:
July 01, 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.
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.
2
9
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
Moderate
2000
63%
Moderate
Moderate
-Moderate
Maximum
--
3600
2000
-1600
2200
--
75%
65%
-67%
100%
--
Moderate
Heavy
-Light
4600/5900
1850
-1500
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
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.
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.
2
10
2017 LIGHT SPRING– 17LSP2-S
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: SCENARIO CASE – HEAVY SUMMER LOADS THROUGHOUT WECC REGION TO CAPTURE HIGH
IMPORTS TO SOUTHERN
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: 45% of summer peak conditions to represent the months of March – April in the Desert Southwest
V.
TIME: Afternoon hours (1800 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
---------
---------
---------
INTERCHANGE4:
CONDITION
TARGET
% RATING
Canada to Northwest (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
--
-14005
--
-------
-------
-------
-----
-----
-----
VII.
To Area Coordinator: July 22, 2016
To Staff:
August 26, 2016
From Case
Stability Data
Significant Changes
16HSP1-OP
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.
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
Minimum flows are required to represent the Canadian Entitlement.
2
11
2018 LIGHT AUTUMN – 18LA1-S
CASE DESCRIPTION
I.
CASE DUE DATES:
II.
PURPOSE: SCENARIO CASE – TO ACHIEVE MAXIMUM TRANSFERS OUT OF IDAHO AND MONTANA INTO THE
NORTHWEST
III.
ITEMS TO BE PREPARED:
IV.
LOADS2: Minimum load in Idaho and Montana for the months of September - November
V.
TIME: 0200 to 0400 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
Median
Low
Median
-Median
Low
Median
Median
Low
High
Maximum
-Median
Median
50% Avail. Wind
50% Avail. Wind
75% Avail. Wind
75% Avail. Wind
-----
INTERCHANGE4:
CONDITION
TARGET
% RATING
Canada to Northwest (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
High
-14005
75%
Moderate
--High
Maximum
--
3200
--2000
2200
--
66%
--83%
100%
--
-----
--/-----
--/-----
VII.
To Area Coordinator: August 26, 2016
To Staff:
September 30, 2016
From Case
Stability Data
Significant Changes
17LSP1-S
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.
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
Minimum flows are required to represent the Canadian Entitlement.
2
12
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
VII.
To Area Coordinator: September 30, 2016
To Staff:
November 04, 2016
From Case
Stability Data
Significant Changes
Canada to Northwest (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
2025-26HW1
Master Dynamics File1
From Existing System
5
Moderate
-1400
46%
-------
-------
-------
-----
--/-----
--/-----
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.
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
Minimum flows are required to represent the Canadian Entitlement.
2
13
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 (Path 3)
Northwest to California/Nevada
COI (Path 66)
PDCI (Path 65)
Midway – Los Banos S-N (Path 15)
Idaho to Northwest (Path 14)
Montana to Northwest (Path 8)
Utah/Colorado to Southwest
(Path 31, 35, 78 & Durango – Coyote 115 kV)
Southwest to Calif. (EOR Path 49/WOR Path 46)
Intermountain to Adelanto DC (Path 27)
San Diego to CFE (Path 45)
Midway to Vincent (Path 26)
High
>2000
66%
-------
-------
-------
-----
--/-----
--/-----
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.
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.
2
14
WECC BASE CASES LISTED BY YEAR OF COMPILATION
(i.e. 16 = 2016 COMPILED BASE CASE)
Winter Cases Identified by the second year of case (e.g. 17 for 16-17 HW1)
Year
2013
WINTER
Light
Heavy
08S, 12OP
07, 12OP
SPRING
Light
Heavy
12OP
SUMMER
Light
Heavy
12OP
08G,
12OP
AUTUMN
Light
Heavy
05
09S
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
15OP
15OP
05, 10G,
15OP
2017
11S,
16OP
06, 11G,
16OP
14S, 16S
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
2023
16G
12G
2024
13G
13S
2025
14G
14G
2026
15G
2027
16G
S - Scenario Case (2)
G - General/Planning Case (4)
OP - Operating/OTC Case (5)
V - Validation Case (placeholder)
15S*
15G
16G
Current
Compilation
Schedule
* Planning Region Case
Proposed
Cases
15
11S
10S
16S