SSG-WI PWG Technical Support Group (TSG) Meeting

**Portland, Oregon**

**April 2, 2003**

# Decisions / Actions

-   Discussed a draft paper requested at the last TSG meeting, entitled
    "Difference Between the WGA Study and the SSG Study and Assessment
    of the Value that the SSG Study Would Provide". After discussion,
    the TSG, supported largely by the generators and regulators,
    concluded there is benefit to the proposed SSG studies over the
    previous WGA studies. This draft paper will be modified and
    incorporated into the September Transmission Report.

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-   Generator Addition Assumptions - - -

> To be included in the 2008 case, generators will need to be
> operational by December 31, 2003.

-   Transmission Addition Assumptions - - -

> To be included in the 2008 case, in addition to an energization date
> prior to 2008, new transmission needs to be either currently under
> construction or currently have received required regulatory permits.

-   Reserve Margin -- 25% based on nameplate and 2008 summer peak load

-   Gas Price Assumptions - - -

> For the 2008 Study, a median wellhead gas price of \$3.00 will be
> used. High gas price will be \$4.50 and low gas price will be \$2.00.

-   Dependable Capacity for Wind - - -

> Wind energy dispatch will be hardwired into the model, same as hydro.
> Wind energy dependable capacity will be assumed as 20% of total
> nameplate capacity.

-   2008 Cases -- 5 sensitivities will be run.

1.  Median hydro, low gas price

2.  Median hydro, median gas price

3.  Median hydro, high gas price

4.  Low hydro, high has price

5.  High hydro, low gas price

    -   Formed the Report Writing Team, consisting of Jeff Miller,
        Dennis Phillips, Mary Johannis, Phil Carver/Doug Larson, Marv
        Landauer, Ken Morris, Cynthia Praul, Jim Caldwell, Kurt Granat
        and Dean Perry.

    -   A Transmission Subgroup will be formed at the next meeting to
        identify alternative transmission solutions and their associated
        capacity increases, for use in the 2013 studies.

**Study Schedule**

The 2008 base case development will be completed by the end of April.

The first Transmission Report will be completed by September 30, 2003.
The report will include results of the 2008 and 2013 studies, including
a list of alternative transmission solutions for congestion problems
found in the 2013 studies.

**Action Items**

1.  Comments (red lined) on the draft paper "Differences Between the WGA
    Study and the SSG Study - - - - " should be sent to Jeff Miller by
    Friday, April 11. Jeff will redraft the paper.

2.  Kurt update list of Generator additions. Jim Caldwell will send Kurt
    a list of wind generators that will be operational by December 31,
    2003, which are not currently on the generator list.

3.  Kurt add a note on the Generator Addition list, describing the
    criteria used for inclusion of new generators in the 2008 case.

4.  Kurt document the gas price forecast used in the 2008 case.

5.  Jeff send an Email to the PWG, summarizing the major transmission
    additions in the 2008 case compared to today's system.

6.  Presentation on initial 2008 case results to be made at the April 30
    TSG meeting and at the May 1 PWG meeting.

**Next Meeting**

April 30, 2003, 1:00 to 5:00 pm, at the Portland Airport Conference
Center