# [2008 HEAVY SUMMER -- 2008HS1-S]{.underline}

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. [PURPOSE:]{.underline} **Prepare a case with high loads in the
Desert Southwest and Southern California.**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case 2007 HS2 Operating
Case

Stability Data Master Dynamics File (1)

Significant Changes 2007 HS2 Operating Case

IV\. [LOADS:]{.underline} 105%-110% of summer peak loads in the Desert
Southwest and Southern California with 90 -- 100% loads elsewhere.

V. [TIME:]{.underline} 4:00 -- 6:00 pm in August 2008

VI\. [GENERATION]{.underline} [HYDRO]{.underline}
[THERMAL\*]{.underline}

Canada Median \--

Northwest Median High

Idaho/Montana Median High

Colorado/Wyoming Median High

Northern California Hydro 70% \--

California \-- High

Arizona/New Mexico \-- High

VII\. [INTERCHANGE]{.underline} [CONDITION]{.underline}
[TARGET]{.underline} [% RATING]{.underline}

Canada to Northwest High 2500

Northwest to California/Nevada

(COI/RATS) High 4500

(PDCI) High 3100

Path 15 S-N \-- \--

Wyoming/Utah/Idaho to Northwest \-- \--

Montana to Northwest Moderate 1200

Utah/Colorado to Southwest \-- \--

Southwest to Calif. (EOR/WOR) \-- \--

Intermountain to Adelanto DC High 1920

Midway to Vincent High 2500

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.

# [2011 -12 LIGHT WINTER -- 2011-12LW1-S]{.underline}

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. [PURPOSE:]{.underline} **Prepare a case with maximum south to north
transfer over path 15 to study the year 2012 year scenario**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case 08-09HW1

Stability Data Master Dynamics File (1)

Significant Changes 08-09HW1

IV\. [LOADS:]{.underline} 60-70% of Winter Peak Load.

V. [TIME:]{.underline} 0200 to 0500 hours in February 2012

VI\. [GENERATION]{.underline} [HYDRO]{.underline}
[THERMAL\*]{.underline}

Canada Median \--

Northwest Low High

Idaho/Montana Median High

Colorado/Wyoming Low Median

Northern California Hydro 70% \--

California Low \--

Arizona/New Mexico \-- \--

VII\. [INTERCHANGE]{.underline} [CONDITION]{.underline}
[TARGET]{.underline} [% RATING]{.underline}

Canada to Northwest Moderate -1000

Northwest to California/Nevada

(COI/RATS) Heavy -3500

(PDCI) Moderate -2000

Path 15 S-N Heavy -5400

Wyoming/Utah/Idaho to Northwest Moderate 1200

Montana to Northwest High 1800

Utah/Colorado to Southwest Low -170

Southwest to Calif. (EOR/WOR) Medium 5000/7000

Intermountain to Adelanto DC Heavy 1800

Midway to Vincent Low -1000

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.

# [2010-2011 HEAVY WINTER -- 2010-11 HW1]{.underline}

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. [PURPOSE:]{.underline} **Generic five-year case with northwest
imports for council and member use.**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case 08-09 HW1

Stability Data Master Dynamics File (1)

Significant Changes 08-09

IV\. [LOADS:]{.underline} 90-100% Winter Peak

V. [TIME:]{.underline} 4:00 -- 6:00 pm Midweek in January 2011

VI\. [GENERATION]{.underline} [HYDRO]{.underline}
[THERMAL\*]{.underline}

Canada Median \--

Northwest Median High

Idaho/Montana Median High

Colorado/Wyoming Low High

Northern California Hydro 70% \--

California \-- Median

Arizona/New Mexico \-- Median

VII\. [INTERCHANGE]{.underline} [CONDITION]{.underline}
[TARGET]{.underline} [% RATING]{.underline}

Canada to Northwest Low -1000 50%

Northwest to California/Nevada

(COI/RATS) Moderate 3000 61%

(PDCI) Moderate 2000 65%

Path 15 S-N \-- \-- \--

Wyoming/Utah/Idaho to Northwest Moderate 1200 52%

Montana to Northwest Moderate 1450 65%

Utah/Colorado to Southwest \-- \-- \--

Southwest to Calif. (EOR/WOR) Moderate 4000/5500 53%

Intermountain to Adelanto DC High 1800 94%

Midway to Vincent Moderate 1500 44%

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.

# [2010 HEAVY SUMMER -- 2010HS1]{.underline}

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. II. [PURPOSE:]{.underline} **To Provide a General Case for Study
Work Reflecting Realistic Flows Thoughout WECC Using Generation Economic
Dispatch**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case 2009 HS2 Operating
Case

Stability Data Master Dynamics File (1)

Significant Changes 2009 HS2 Operating Case

IV\. [LOADS:]{.underline} 90-100% of summer peak.

V. [TIME:]{.underline} Peak Time 1600 to 1800 hours late August.

VI\. [GENERATION]{.underline} [HYDRO]{.underline} [THERMAL]{.underline}

Canada Median \--

Northwest Median High

Idaho/Montana Median High

Colorado/Wyoming Median High

Northern California Hydro 70% \--

California \-- High

Arizona/New Mexico \-- High

VII\. [INTERCHANGE]{.underline}\*\* [CONDITION]{.underline}
[TARGET\*]{.underline} [% RATING]{.underline}

Canada to Northwest Moderate 1000 32%

Northwest to California/Nevada

(COI/RATS) Heavy 4000 82%

(PDCI) Moderate 2500 81%

Path 15 S-N Moderate \-- \--

Wyoming/Utah/Idaho to Northwest \-- \-- \--

Montana to Northwest Moderate 1500 68%

Utah/Colorado to Southwest \-- \-- \--

Southwest to Calif. (EOR/WOR) Moderate 4500/6000 60%

Intermountain to Adelanto DC Heavy 1600 83%

Midway to Vincent Heavy 2500 74%

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.

2013 HEAVY AUTUMN -- 13HA1

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. [PURPOSE:]{.underline} **TO REPRESENT HIGHEST EOR/WOR WITHIN THE
SCIT NOMOGRAM TO CALIFORNIA AND MODERATE FLOWS ELSEWHERE. INCLUDE EOR
UPGRADES.**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case PVD2 Rating Study
Case

Stability Data PVD2 Rating Study Dynamics File (1)

Significant Changes PVD2 Rating Study Case

IV\. [LOADS:]{.underline} Loads represented in PVD2 Rating Study Case
for S.California, Desert Southwest, Nevada, and other participating
entities involved with developing this case 100% of Autumn peak loads
elsewhere.

V. [TIME:]{.underline} Peak Time 0200 to 0500 hours late September.

VI\. [GENERATION]{.underline} [HYDRO]{.underline} [THERMAL]{.underline}

Canada Median \--

Northwest Low High

Idaho/Montana High High

Colorado/Wyoming Low Median

Northern California Hydro 60% \--

California Low Low

Arizona/New Mexico/southern Nevada \-- High

VII\. [INTERCHANGE]{.underline}\*\* [CONDITION]{.underline}
[TARGET\*]{.underline} [% RATING]{.underline}

Canada to Northwest Light 0 \--

Northwest to California/Nevada

(COI/RATS) Light 2500 50%

(PDCI) Light 1000 30%

Path 15 S-N \-- \-- \--

Wyoming/Utah/Idaho to Northwest Moderate 1600 70%

Montana to Northwest Maximum 2200 100%

Utah/Colorado to Southwest Light \-- \--

Southwest to Calif. (EOR/WOR) Heavy 9255/\-- \--

Intermountain to Adelanto DC Heavy 1660 86%

Midway to Vincent Light 1000 35%

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.

2016 HEAVY SUMMER -- 16HS1

## CASE DESCRIPTION FORM

I. [CASE DUE DATES:]{.underline} (Completed By WECC Staff)

II\. [PURPOSE:]{.underline} **Generic ten-year case with northwest
imports for council and member use.**

III\. [ITEMS TO BE PREPARED:]{.underline} From Case 2014-15HW1

Stability Data Master Dynamics File (1)

Significant Changes 2014-15HW1

IV\. [LOADS:]{.underline} 90-100% of summer peak.

V. [TIME:]{.underline} 0200-0400 late August.

VI\. [GENERATION]{.underline} [HYDRO]{.underline} [THERMAL]{.underline}

Canada High \--

Northwest High High

Idaho/Montana Median High

Colorado/Wyoming High High

Northern California Hydro 70% \--

California Median High

Arizona/New Mexico/southern Nevada \-- High

VII\. [INTERCHANGE]{.underline}\*\* [CONDITION]{.underline}
[TARGET\*]{.underline} [% RATING]{.underline}

Canada to Northwest Heavy 2300 73%

Northwest to California/Nevada

(COI/RATS) Heavy 4650 95%

(PDCI) Heavy 2980 96%

Path 15 S-N \-- \-- \--

Wyoming/Utah/Idaho to Northwest Light 0 \--

Montana to Northwest Moderate 1200 55%

Utah/Colorado to Southwest Light \-- \--

Southwest to Calif. (EOR/WOR) Moderate 3000/5800 40%

Intermountain to Adelanto DC Heavy 1660 86%

Midway to Vincent Heavy 2800 93%

(NOTE) Where no target flows are specified actual scheduled transfers
should be based on each areas 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.

\* When completing this section you may either indicate a Condition
(Light, Moderate, Heavy, or Maximum), or a Target MW flow, or both.