Variable Generation Subcommittee Charter Meeting Summary 2012

1. JT ThompsonVariable Generation Subcommittee JGC Meeting August 24, 2012 Salt Lake City, UT

2. Charter • Key Points: • Gain input from standing committees prior to raising recommendations to JGC • Continue reporting to the JGC • Take action and provide recommendations, not just supply information • Presented to Standing Committees for Feedback

3. Charter • Chair request for JGC: • Approve the VGS Charter

4. Survey: Future of the VGS • Feedback from Standing Committees • What are the top issues? • What are future projects to undertake? • What does the VGS look like in the future? • Link emailed August 21 • Responses requested by August 31 • Results to be discussed in September

5. 2012 Addendum – Electricity Markets and Variable Generation Integration • In 2011 VGS MWG issued a whitepaper on market mechanisms to integrate VG • 2012 addendum (link) • Updates on initiatives • Clearer recommendations • JGC remanded previous recommendations • VGS re-worded the recommendations

6. 2012 Addendum – Electricity Markets and Variable Generation Integration • Recommendations: • Based upon the studies and data we have reviewed, the VGS recommends that WECC, in coordination with its’ stakeholders, support the development of Energy Imbalance Market structures, and/or other tools and structures to effectively and efficiently integrate variable generation in the Western Interconnection.

7. 2012 Addendum – Electricity Markets and Variable Generation Integration • Recommendations (continued): • The VGS recommends that WECC serve as a forum for discussion and development of market methods and products that promote more efficient access to and use of transmission to facilitate the integration of Variable Generation.

8. 2012 Addendum – Electricity Markets and Variable Generation Integration • Chair request for JGC: • Consider the recommendations and present them to the Board

9. Maximum VG Penetration • VGS has had a hard time scoping the question in ways that are both meaningful and cost-effective • The answers are different for different systems in interconnection • Chair recommendation: • Remove this from the VGS goals and request individual entities, specifically BA’s and subregional planning groups, perform their own studies.

10. Standard Interconnection Requirements • NERC IVGTF report to be approved: • “Special Reliability Assessment: Interconnection Requirements for Variable Generation” • Proposed updates to standards • Chair recommendation: • Wait for NERC approval and comment on projects as timeframes allow

11. VG Planning Guide • Planning Guide has been posted for comment by PCC and TEPPC • Comments will be collected and by the next meeting • [Link]

12. FERC Order 764 • VGS will follow the 764 Taskforce efforts • VGS will encourage members to participate in the 764 Taskforce

13. 2012 VGS Meetings • September 27 • December 13

14. JT Thompson VGS Chair 713-332-2901 JT.Thompson@constellation.com Questions? Matt Hunsaker Renewable Integration Manager 801-819-7670 mhunsaker@wecc.biz