1. Economic Planning Study (EPS) Updates ColumbiaGrid Planning Meeting June 7, 2018

2. Modeling Assumptions for 2033 High Renewable PCM
Outline
Modeling Assumptions for 2033 High Renewable PCM
WECC 2028 ADS PCM v0.3.2
2018 Water year/Run-Off

3. Modeling Assumptions for 2033
Supply Additions:
Waiting on CA preferred renewable additions
Reviewing IRP for preferred supply additions
Will fill, in as needed, to maintain minimum reserve margin
Run 2028 with supply additions
Objective: Determine impact of supply additions over PF based PCM
Run 2033 with
Objective: Potential impact 50% renewable standard in California

4. WECC 2028 ADS PCM PF Based PCM WECC released v0.3.2 on 6/1
A little unserved load exist in PNM and CFE
Dump energy exist: WECC working on resolving constraints: primary in CA Bas.
Other areas: PGE, PNM, NWMT, PACW, TPWR
NW: Jones Canyon or PG&E: Shiloh Wind area
Working to identify and resolve any commit/dispatch issues
Load updated to 2018 L&R forecast

5. 2018 Water Year/Run-off Jan-Jul Run-Off at The Dalles: 121.6 MAF
20% of average MAF
Rank 83.1% of 90 year

6. Question: Kevin Harris (503) 943-4932 harris@columbiagrid.org