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Inputs for 2022 SWG Resource Team Conference Call on Generation and Demand Balancing

This document outlines key inputs for the SWG Resource Team's conference call on November 10, 2011, focused on assessing 2022 generation and peak demand. It details subregional coincident peak demands, generation by area and resource type, and targeted planning reserve margins. The information includes on-peak capacity values and firm transfers between subregions at peak times. Sources referenced include the 2022 Common Case load forecast, LRS data submittals, and CPUC requirements. For further inquiries, contact Heidi Pacini, Staff Engineer at WECC.

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Inputs for 2022 SWG Resource Team Conference Call on Generation and Demand Balancing

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  1. Heidi PaciniStaff Engineer Load/Gen Balance Spreadsheet Inputs November 10, 2011 SWG Resource Team Conference Call

  2. List of Inputs • Subregional coincident peak demand • 2022 generation by area and resource type • Targeted planning reserve margin • On-peak capacity value by resource type • Firm transfers between sub-regions at time of peak

  3. Coincident Peak Demand • Source: 2022 Common Case load forecast

  4. 2022 Generation • Renewable Resources • As needed to meet RPS targets • Source: LRS data submittals and IRP information • Conventional Resources • Existing, under-construction resources • Source: 2010 LRS data submittals • Additional resources needed to meet target reserve margins • Source: LRS data submittals and IRP information

  5. Planning Reserve Margins • Source: • California – CPUC requirement (D.04-01-050) • Rest of WECC - LRS 2011 Power Supply Assessment (see table below) Set to 17%

  6. On-Peak Capacity Value • Source: Stakeholder input from 2009 and 2010 study programs

  7. On-Peak Capacity Value – Possible Adjustment • Use net qualifying capacity (NQC) for renewables as used in CPUC LTPP Cells in white have been updated with NQCs as specified in LTPP spreadsheets

  8. Firm Transfers Between Subregions • Source: CEC Summer 2011 Electricity Supply and Demand Outlook *Stakeholder input

  9. Heidi Pacini Staff Engineer Western Electricity Coordinating Council hpacini@wecc.biz (801) 819-7610 Questions?

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