1. Energy Storage R.10-12-007 Energy Storage Procurement & Policy Options Arthur O’Donnell/Aloke Gupta/Elizaveta Malashenko Energy Division Grid Planning & Reliability January 14, 2013 1

2. Remote Access Call in #:Passcode: 1-866-758-16757646128 Note: *6 to mute/unmute Upon entry to the call, please place yourself on mute, and remain on mute unless you are asking a question WebEx Information Meeting Number: 744 418 027 Meeting Password: storage Go to: https://van.webex.com/van/j.php?ED=19 6274762&UID=491292852&PW=NZWE0N WE5YTdh&RT=MiM0 https://van.webex.com/van/j.php?ED=19 6274762&UID=491292852&PW=NZWE0N WE5YTdh&RT=MiM0

3. 3 Agenda for the Workshop Action ItemTime AllottedClock Introductions and Update10 minutes10:00 am – 10:10 am President Michael Peevey5 minutes10:45 am Panel 1: Procurement75 minutes10:10 am –11:30 am CAISO Markets & Testing30 minutes11:30 am – 12:00 pm Lunch60 minutes12:00 pm – 1:00 pm Panel 2: Operational Experience & Pilots 75 minutes1:00 pm – 2:15 pm EPIC Plans & Storage10 minutes2:15 pm – 2:25 pm Cost-Effectiveness Update10 minutes2:25 pm – 2:35 pm Open Discussion 20 minutes2:35 pm – 2:55 pm Wrap Up & Next Steps5 minutes2:55 pm – 3:00 pm

4. Workshop Purpose and Goals To establish a record for decision making in R.10-12-007 to satisfy the terms of AB 2514 (PUC Section 2836) with regard to establishing potential energy storage procurement targets for load-serving entities (LSEs). 4

5. Workshop Purpose and Goals Responsive to AB 2514, which requires the CPUC: To open a proceeding to determine appropriate targets, if any, for each load-serving entity to procure viable and cost-effective energy storage systems. By October 1, 2013, to adopt energy storage procurement targets, if determined to be appropriate, to be achieved by each LSE by December 31, 2015, and a 2nd target to be achieved by December 31, 2020. Consider a variety of possible policies to encourage the cost- effective deployment of energy storage systems, including refinement of existing procurement methods to properly value energy storage systems. 5

6. Evaluation of Procurement Targets AB 2514 specifically requires that the CPUC: (a) Consider existing operational data and results of testing and trial pilot projects from existing energy storage facilities. (b) Consider available information from the California Independent System Operator testing and evaluation procedures. (c) Consider the integration of energy storage technologies with demand-side management or other means of ensuring the most efficient use of generation resources and cost-effective energy efficient grid integration and management. (d) Ensure that the energy storage system procurement targets and policies that are established are technologically viable and cost effective. 6

7. Energy Storage OIR R10-12-007 July 9 th, 2010 PPD White Paper on Energy Storage September 29 th, 2010 AB 2514 is enacted December 16 th, 2010 OIR 10-12-007 issued March 9 th, 2011 Initial Workshop April 21 st, 2011 PHC December 31 st, 2015 Proposed First Procurement target (AB2514) December 31 st, 2020 Proposed Second Procurement target (AB2514) October 1 st, 2013 Decision Target May 31, 2011 Scoping Memo June 28 th, 2011 Workshop July 31 st, 2011 Barriers Workshop Phase 1 Phase 2 We are here January 2013 Q1/Q2 2012 December 12, 2011 Staff Proposal Released Aug. 2, 2012 ALJ Decision D12-08-016 Jan 31, 2012 Parties Comments Feb 20, 2012 Reply Comments March 30, 2012 Final Staff Proposal Sept. 4, 2012 PHC Aug 20 – Oct. 16 Workshops Summer 2013 Submission of record of case January 4, 2013 Staff Interim Report issued

8. Panel 1: Procurement Options Janice Lin - Energy Storage Alliance David Castle - Southern California Edison Armando Infanzon - San Diego Gas & Electric Daidipya Patwa - Pacific Gas and Electric 8

9. Procurement Options What additional information do we need to decide? A) Procurement targets as a fixed percentage of load-serving entities’ load, may be structured as a capacity (Megawatt) threshold, or for specific applications for storage. B) Pilots or “Market Tests” focused on specific priority applications or end uses, to further develop tools for cost-effectiveness analysis. C) Portfolio - Setting aside a dynamically adjusted portion of procurement for need determination for “preferred” resources, specifically including storage. D) As noted by legislative analysis of AB 2514 he Commission’s determination could also result in a finding that no target level is appropriate. 9

10. CAISO Markets and Testing Don Trethaway, Senior Market Design and Policy Specialist, Market Design and Regulatory Policy, California ISO 10

11. Panel 2: Operational Experience and Pilots Jack Ellis, Independent Engineer and Consultant - Select Projects Praveen Kathpal, AES Energy Storage – Lessons from the Field Vic Romero, SDG&E Director – Asset Management & Smart Grid Projects – SDG&E Pilots 11

12. Energy Storage in EPIC plans On November 1, 2012, the CEC, PG&E, SCE and SDG&E filed their required 2012-2014 Investment Plans for research & development programs funded via ratepayer contributions to the EPIC program. Total $466.5 million for Applied Research, Technology & Demonstration (T&D), and Market Facilitation (2013-2016). Utility spending is entirely in the T&D category. As much as $60 million of the CEC project budget could be applied to energy storage research projects. Up to $15 million possible for IOU projects that could include storage. 12

13. Cost-Effectiveness Analysis Update Aloke Gupta, Regulatory Analyst, CPUC 13

14. Next Steps Comments on this workshop may be incorporated with comments on January 4, 2013, Staff Interim Report and Use Cases. Must be served to entire Service List for R. 10-12-007. As per ALJ Ruling of January 10, 2013: Comments are due February 4, 2013; Response comments due February 21, 2013. Ongoing work to conduct cost-effectiveness analysis. 14

15. Thank You! For further information related to R.10-12-007 please contact : Arthur O’Donnell ao1@cpuc.ca.gov 415-703-1184 Aloke Gupta ag2@cpuc.ca.gov 415-703-5239 Elizaveta Malashenko eim@cpuc.ca.gov 415-703-2274 www.cpuc.ca.gov 15