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Marginal Generation Costs

Marginal Generation Costs. Publicly Available Models and Data. Thursday, April 19, 2012. Background. Portfolio Modification.

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Marginal Generation Costs

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  1. Marginal Generation Costs Publicly Available Models and Data Thursday, April 19, 2012

  2. Background Portfolio Modification • PG&E's 2011 GRC Phase 2 settlement, D.11-12-053, adopted December 15, 2011, calls for a workshop prior to May 1, 2012, to identify and discuss publicly available models and data bases covering generation marginal costs. • PG&E has not committed to the use of a particular methodology or set of data for its 2014 GRC Phase 2 marginal generation cost showing but plans on presenting its findings with respect to publicly available models and data in order to solicit opinions/thoughts by the workshop participants that will help inform PG&E’s analysis and testimony. • PG&E will present its findings on: 1) Publicly available models and data; 2) Results using the CPUC’s E3 models and inputs and 3) Results using PG&E’s internal model but with inputs based on publicly available data rather than PG&E’s confidential data.

  3. Data Sources/Models Used by PG&E for Internal/Regulatory Processes I Portfolio Modification • CEC Generator Cost Report (2009) “http://www.energy.ca.gov/2009publications/CEC-200-2009-017/CEC200-2009-017-SD.PDF” • CAISO Hourly Electric Price Data from OASIS “oasis.caiso.com/mrtu-oasis/home.jsp” • E3’s Distributed Electric Resources Avoided Cost Model, version 3.9: “http://www.ethree.com/documents/E3%20Calculator%2009.20.11/DERAvoidedCostModel_v3.9_2011%20v4b%20CA%20Avg.zip”

  4. Data Sources/Models Used by PG&E for Internal/Regulatory Processes II Portfolio Modification • Market Price Referent (2011) “http://www.ethree.com/public_projects/cpuc3.php” • Clearpoint Natural Gas Prices “http://www.cmegroup.com/trading/energy/index.html” • Federal Escalation Factors “http://www.bls.gov/bls/proghome.htm”

  5. Data Sources/Models Identified by Parties in PG&E’s 2011 GRC Phase 2 Portfolio Modification • Platts Gas Daily • Platts Megawatt Daily • CAISO Annual Report on market Issues and Performance • CT Cost and Operating Characteristics using GE LM6000; Frame 7; LMS 100

  6. Data Sources/Models Identified but Not Used by PG&E or Other Phase 2 Parties Portfolio Modification • CEC California Energy Almanac “http://www.energyalmanac.ca.gov/electricity/index.html” • U. S. Energy Information Administration “http://www.eia.gov” • Wall Street Journal’s Public Energy Statistics – Appears that it is no longer updated nor provided

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