+----------------------+-----------------------+----------------------+
| Loads:               | Done.                 | Updated loads to be  |
|                      |                       | submitted and used   |
| Use the WECC 2004    | Large California      | for PacifiCorp --    |
| L&R forecast for     | pumps (non            | East (consistent     |
| 2008, with the       | agricultural) were    | with recently filed  |
| exception that the   | disaggregated from    | IRP). R. Wilson      |
| load forecast        | loads and modeled as  | continues to have    |
| developed for RMATS  | pumps.                | problems with the    |
| is used for the      |                       | RMATS PACE loads for |
| Rocky Mountain       | Done.                 | year 2008. Becky has |
| states. (The RMATS   |                       | no problem with the  |
| load forecast was    | Note: There is an     | load growth factors  |
| based on WECC's 2003 | inconsistency between | used in RMATS,       |
| L&R, with updates    | the load shapes in    | applied to 2008 to   |
| and corrections by   | RMATS and the 2002    | generate 2013;       |
| RMATS participants.) | actual load shapes    | consensus was        |
| Translate the WECC   | for the Rocky         | reached on the Load  |
| load forecast (22    | Mountain states, and  | Forecasting          |
| bubbles) to the      | an inconsistency      | Workgroup call on    |
| SGG-WI topology (33  | between the load      | Monday to use the    |
| bubbles). SSG-Wi     | shapes developed in   | same factors for     |
| topology includes    | HELMS and 2002 actual | generating the 2015  |
| two NW bubbles, two  | load shapes for the   | forecast.            |
| PG&E bubbles, and    | NW states             |                      |
| the Rocky Mountain   |                       | Re-examine whether   |
| bubbles per RMATS    | Irena developed new   | 2002 actual load     |
| except that Montana  | load shapes that      | shapes should be     |
| bubbles are          | reflects the          | used across the      |
| consolidated         | operation of the      | board                |
|                      | large pumps.          |                      |
| Adopt 2002 as the    | Currently, we're      | To adjust for        |
| sample year to       | working with ABB to   | losses, run GridView |
| determine hourly     | make sure all         | with loss calculator |
| load shapes for each | adjustments to        | on, but make no      |
| bubble in the SSG-Wi | incorporating the     | change to load       |
| topology. Each       | pumps are done        | forecast. Observe GV |
| bubble's shape will  | correctly.            | results, then decide |
| be applied to all    |                       | whether peak demand  |
| busses in that       | No adjustment to load | and energy in load   |
| bubble. Exceptions:  | forecast for          | forecast should be   |
| use the hourly load  | transmission losses   | adjusted upward      |
| shapes developed in  |                       | based on GV loss     |
| RMATS for the Rocky  |                       | calculations         |
| Mountain bubbles.    |                       |                      |
| Use load shapes      |                       | .                    |
| produced by          |                       |                      |
| GENESYS/HELMS using  |                       |                      |
| 2002 temperatures    |                       |                      |
| for the NW bubbles   |                       |                      |
+----------------------+-----------------------+----------------------+
| Power flow case(s):  | Employ summer power   | -                    |
|                      | flow case only. Case  |                      |
| -   Use the WECC     | is rerun to account   | -   SPGs complete    |
|     2004 summer      | for updates to        |     their review of  |
|     --heavy power    | transmission          |     transmission     |
|     flow case (HS2A  | representation in CA, |     representation   |
|     PF) (default for | CO, NW, AZ, ID        |     for remaining    |
|     all months)      |                       |     geographic areas |
|                      |                       |                      |
| -   Identify a       |                       | -   Pending is the   |
|     winter power     |                       |     review of PACE   |
|     flow case, and   |                       |     transmission     |
|     test its impact. |                       |                      |
|                      |                       | -   Identify a       |
|                      |                       |     winter power     |
|                      |                       |     flow case (WECC) |
|                      |                       |                      |
|                      |                       | -   Test the impact  |
|                      |                       |     of adding a      |
|                      |                       |     winter case for  |
|                      |                       |     the winter time  |
|                      |                       |     period           |
|                      |                       |                      |
|                      |                       | -   Decide to        |
|                      |                       |     include or not   |
|                      |                       |     include the      |
|                      |                       |     winter case in   |
|                      |                       |     the base case    |
|                      |                       |     study. The       |
|                      |                       |     winter case      |
|                      |                       |     would used to    |
|                      |                       |     distribute loads |
|                      |                       |     to busses for    |
|                      |                       |     the winter       |
|                      |                       |     period (summer   |
|                      |                       |     case is used for |
|                      |                       |     the full year in |
|                      |                       |     preliminary      |
|                      |                       |     study).          |
|                      |                       |                      |
|                      |                       | -   To generate a    |
|                      |                       |     winter case,     |
|                      |                       |     consideration    |
|                      |                       |     should be given  |
|                      |                       |     to the           |
|                      |                       |     customization    |
|                      |                       |     applied to the   |
|                      |                       |     summer case; of  |
|                      |                       |     issue is         |
|                      |                       |     creating a       |
|                      |                       |     process to       |
|                      |                       |     automate the     |
|                      |                       |     task.\--+\--     |
+----------------------+-----------------------+----------------------+
| Existing resources:  | Of the \~2600 units   | Mapping should be    |
|                      | in the West, the      | reviewed by SPGs and |
| Map all units to     | number unmapped has   | states               |
| busses               | been driven down to   |                      |
|                      | almost zero. One      |                      |
|                      | exclusion: units \<   |                      |
|                      | 10 MW. These units    |                      |
|                      | are associated with   |                      |
|                      | busses and they are   |                      |
|                      | assumed in this study |                      |
|                      | to be gas-fired. For  |                      |
|                      | the units that are    |                      |
|                      | mapped, a number of   |                      |
|                      | assumptions have been |                      |
|                      | made - with no review |                      |
|                      | by SPGs or states     |                      |
|                      |                       |                      |
|                      | Units with negative   |                      |
|                      | capacities were       |                      |
|                      | grouped with          |                      |
|                      | units\<10 MW and      |                      |
|                      | modeled as thermal;   |                      |
|                      | given high gas        |                      |
|                      | prices. We're in the  |                      |
|                      | process of            |                      |
|                      | segregating original  |                      |
|                      | units with negative   |                      |
|                      | capacities to         |                      |
|                      | reinstate them as     |                      |
|                      | pumps.                |                      |
+----------------------+-----------------------+----------------------+
| Existing resources:  | Resources in this run | Obtain review by     |
|                      | are the resources in  | states and company   |
| Merge and reconcile  | the WECC power flow   | experts before       |
| the units identified | case. The units       | finalizing           |
| by the states with   | identified by states  |                      |
| the units identified | were reconciled with  |                      |
| by WECC in the power | those identified in   |                      |
| flow case. Ensure    | the WECC case. No     |                      |
| state                | major discrepancies   |                      |
| review/concurrence   | were found; the       |                      |
|                      | states' input was     |                      |
|                      | particularly helpful  |                      |
|                      | in identifying and    |                      |
|                      | locating generators.  |                      |
|                      | Default to WECC power |                      |
|                      | flow depiction of     |                      |
|                      | resource attributes   |                      |
|                      | if discrepancy is     |                      |
|                      | less than 10 MW.      |                      |
+----------------------+-----------------------+----------------------+
| Incremental          | Resources in this run | > Determine          |
| resources            | are the resources in  | > load/resource      |
|                      | the WECC power flow   | > balances and RPS   |
|                      | case. No additional   | > conformance based  |
|                      | resources and no      | > on preliminary     |
|                      | review by SPGs or     | > analyses. If any   |
|                      | states. No target     | > state has a        |
|                      | planning margin was   | > resource adequacy  |
|                      | applied, nor were     | > standard, ensure   |
|                      | RPSs                  | > there are          |
|                      |                       | > sufficient         |
|                      |                       | > resources to meet  |
|                      |                       | > that standard.     |
|                      |                       | > Coordinate with    |
|                      |                       | > states and SPGs to |
|                      |                       | > identify and       |
|                      |                       | > specify a complete |
|                      |                       | > list of new        |
|                      |                       | > resources. Include |
|                      |                       | > additional wind    |
|                      |                       | > resources per      |
|                      |                       | > NREL's             |
|                      |                       | > recommendation, as |
|                      |                       | > appropriate.       |
+----------------------+-----------------------+----------------------+
| Thermal unit         | Unit ratings          | Unit capacity        |
| capacity ratings:    | extracted from summer | ratings need to be   |
|                      | power flow case. The  | adjusted for summer  |
| Net of station       | case is net of        | derates. Power flow  |
| service and/or       | station               | case to be re-run,   |
| on-site direct use   | service/direct use,   | with capacity        |
| of electricity.      | but it is not net of  | ratings uploaded to  |
| Thermal rating       | summer derates        | GV                   |
| should also be       |                       |                      |
| adjusted for summer  | Summer derates reside |                      |
| derates              | in the WECC L&R       |                      |
|                      | report; WECC maps the |                      |
|                      | L&R report to EIA but |                      |
|                      | not to Powerflow.     |                      |
+----------------------+-----------------------+----------------------+

+----------------------+-----------------------+----------------------+
| Thermal unit         | No thermal unit       | Create generic unit  |
| commitment:          | commitment data       | commitment           |
|                      |                       | assumptions based on |
| Create categories of |                       | historical data that |
| units (like fuel     |                       | is publicly          |
| types, technologies, |                       | available, i.e.,     |
| elevations, etc.).   |                       | based on EIA/EPA     |
| Develop generic      |                       | databases. Work with |
| assumptions for heat |                       | DOE, NWPCC and other |
| rate curves, planned |                       | experts to develop   |
| outages, ramp rates, |                       | most reasonable unit |
| min/max up and down  |                       | commitment           |
| times, start-up      |                       | assumptions. Obtain  |
| costs, etc. Generic  |                       | review by states and |
| assumptions based on |                       | subject matter       |
| actual data          |                       | experts before using |
| available from       |                       | this data.           |
| public sources       |                       |                      |
| (EIA/EPA databases)  |                       |                      |
+----------------------+-----------------------+----------------------+
| Fuel prices:         | \$5/MMBtu only -- no  | Include \$6 and \$4  |
|                      | gas price             | sensitivities.       |
| Gas: \$5/MMBtu in    | sensitivities         | Review, refine       |
| 2004\$;              |                       | transportation cost  |
| sensitivities: \$6   | Use the NWPCC         | assumptions.         |
| and \$4              | transportation costs. |                      |
|                      |                       | Circulate the NWPCC  |
| Coal: Develop        | EIA forecast of coal  | transportation costs |
| forecast that        | prices based on       | and assumptions to   |
| reflects publicly    | historical trends.    | SPGs for buy in.     |
| available sources    | Also use EIA forecast |                      |
|                      | of 2-tier             | Review and approve   |
|                      | transportation costs  | of coal price        |
|                      | depending on demand   | forecast             |
|                      | location and coal     |                      |
|                      | source location       |                      |
+----------------------+-----------------------+----------------------+
| Wind generation      | Shapes received and   | Add shapes for new   |
| shapes:              | implemented for       | wind additions       |
|                      | existing wind units   |                      |
| Adopt wind shapes    |                       |                      |
| prepared by NREL     |                       |                      |
+----------------------+-----------------------+----------------------+
| Hydro generation:    | Initial study is for  | Need to obtain       |
|                      | average hydro         | either monthly or    |
| GENESYS will not be  | conditions only:      | hourly hydro         |
| used to model hydro  |                       | generation to fill   |
| generation in the    | NW: Federal and       | gaps.                |
| base case study      | non-Federal           |                      |
| because it cannot    | historical hourly net | NW: Obtain           |
| disaggregate hourly  | generation has been   | PacifiCorp actual    |
| hydro generation to  | obtained for years    | data for the 3       |
| individual hydro     | 1999, 2002 and 2003.  | sample years         |
| plants. ABB is       | NW loads associated   |                      |
| working to include   | with average hydro    | PAC's hydro          |
| this algorithm in    | year temperatures are | generators are being |
| the GridView model   | included in load      | mapped to busses;    |
| for future use.      | forecast              | should be done       |
| Instead:             |                       | today.               |
|                      | CVP: WAPA historical  |                      |
| -   NW: recent       | hourly data modified  | CA: Continue quality |
|     historical hydro | to reflect changed    | control effort and   |
|     generation that  | operational paradigm. | identify base-loaded |
|     is fairly        | Expiration of         | hydro, or obtain     |
|     reflective of    | WAPA-PG&E             | historical hourly    |
|     latest           | Interconnection       | hydro generation;    |
|     Biological       | Agreement is          | need credible        |
|     Opinion. Three   | included, but needs   | operation for Helms  |
|     historical years | to be disaggregated   | Pump-Storage         |
|     chosen: M        | to individual plants  |                      |
|     (2002), L        |                       | Irena is working on  |
|     (2003), H (2000) | Other California: CEC | aggregating plants   |
|                      | monthly energy and    | by river system;     |
| -   Central Valley   | capacity. Use GV peak | generating aggregate |
|     Project:         | shaving to generate   | hourly data files    |
|     modified hourly  | hourly generation.    | covering non-public  |
|     historical data  | Still need to either  | hydro in California. |
|     from WAPA;       | pursue historical     |                      |
|     however, may     | hourly hydro          | BC: Continue         |
|     need to go to    | generation from PG&E, | pursuing hydro data  |
|     same approach as | SCE and Munis or, at  | in most              |
|     NW because       | a minimum, identify   | disaggregated form   |
|     generation for   | base-loaded           | that is not market   |
|     CVP system is    | generation.           | sensitive            |
|     not available    |                       |                      |
|     for individual   | Colorado: Received    | AZ, CO and other SW  |
|     plants           | monthly hydro         | States: fill in      |
|                      | generation from USBR  | hydro data gaps      |
| -   Other            |                       |                      |
|     California: CEC  | Canada: Currently     | FOR ALL HYDRO: need  |
|     monthly hydro    | using 2003            | to understand        |
|     data, to which   | assumptions as        | whether to include   |
|     GridView's peak  | default; still trying | just net generation  |
|     shaving          | to obtain better data | with any pumping     |
|     algorithm is     | from BC Hydro         | load subtracted out, |
|     applied; at a    |                       | or whether pumping   |
|     minimum, PG&E,   |                       | load is contained in |
|     SCE and          |                       | loads                |
|     municipal hydro  |                       |                      |
|     plants that are  |                       | It has been          |
|     operated in      |                       | confirmed that       |
|     essentially      |                       | WECC's loads         |
|     run-of-the-river |                       | incorporates pumps.  |
|     mode need to be  |                       | As been stated       |
|     identified and   |                       | earlier, Irina is in |
|     not included in  |                       | the process of       |
|     peak shaving     |                       | disaggregating the   |
|                      |                       | Large CA pumps to    |
| -   Colorado: Bureau |                       | model as pumps.      |
|     of               |                       |                      |
|                      |                       | Review accuracy of   |
|  Reclamation\--Upper |                       | data and treatment   |
|     and Lower        |                       | in model             |
|     Colorado Regions |                       |                      |
|     provided monthly |                       | Run low and high     |
|     forecasted data, |                       | hydro cases for the  |
|     which reflects   |                       | NW and other areas,  |
|     recent severe    |                       | where appropriate    |
|     drought in terms |                       |                      |
|     of updated       |                       | Need to determine    |
|     hydrology and    |                       | "high" and "Low"     |
|     operational      |                       | hydro.               |
|     algorithms, to   |                       |                      |
|     which GV peak    |                       |                      |
|     shaving          |                       |                      |
|     algorithm is     |                       |                      |
|     applied. Obtain  |                       |                      |
|     non-Federal      |                       |                      |
|     Hydro data.      |                       |                      |
|                      |                       |                      |
| -   Canada: Data     |                       |                      |
|     request into BC  |                       |                      |
|     Hydro            |                       |                      |
|                      |                       |                      |
| -   Arizona/Desert   |                       |                      |
|     SW: Obtain       |                       |                      |
|     non-Federal      |                       |                      |
|     Hydro Data from  |                       |                      |
|     Salt River       |                       |                      |
|     Project and      |                       |                      |
|     other projects.  |                       |                      |
+----------------------+-----------------------+----------------------+
| Transmission         | Detailed update for   | SPGs complete their  |
| representation       | CA. Updates also      | reviews and updates  |
|                      | submitted for, AZ,    | to transmission      |
|                      | NW, CO, ID            | representation for   |
|                      |                       | remaining geographic |
|                      | Power flow case rerun | areas. Rerun summer  |
|                      | to capture these      | power flow case      |
|                      | changes               |                      |
+----------------------+-----------------------+----------------------+
| Transmission path    | Derates to recognize  | TSG review and       |
| ratings and          | historical OTC        | approve treatment    |
| nomograms:           | limitations to be     |                      |
|                      | applied per Dean's    | TSG to submit        |
| Derates to recognize | analysis.             | Nomograms            |
| historical OTC       |                       |                      |
| limitations will be  | Nomograms consistent  |                      |
| applied to specified | with 3/29 TSG         |                      |
| paths. Nomograms to  | decisions.            |                      |
| be included are      |                       |                      |
| listed in Notes for  |                       |                      |
| the 3/29 TSG.        |                       |                      |
| Derates to reflect   |                       |                      |
| historical           |                       |                      |
| operational          |                       |                      |
| scheduling           |                       |                      |
| limitations will be  |                       |                      |
| not applied in the   |                       |                      |
| 2008 study.          |                       |                      |
+----------------------+-----------------------+----------------------+
| Wheeling rates       | No wheeling rates     | Transmission         |
|                      | included              | sub-group to         |
|                      |                       | identify the         |
|                      |                       | interfaces to        |
|                      |                       | represent with       |
|                      |                       | wheeling rates and   |
|                      |                       | the wheeling rates   |
|                      |                       | that should be used  |
+----------------------+-----------------------+----------------------+