1. Convergence Bidding Working Group – 10/22/09
Teleconference Information
Dial-in Number:  (800)
International Dial-in:  (612)
There is no conference ID number. 
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2. Agenda

3. Introduction
This is the fourth in the series of Convergence Bidding Working Group conference calls focused on technical and implementation challenges
Due to the MSC meeting the CAISO rescheduled the 10/15 conference call for 10/22 at stakeholder request

4. Next Steps Policy Finalization FERC Filings
Board Documents Posted – October 22
Board Meeting – October 29-30
FERC Filings
Motion for extension of implementation date – November 13
Conceptual design filing – November 13
Tariff filing – Late January 2010

5. Implementation Milestones
Date
Publish Business Requirements
Dec 2009
Publish Technical Specifications
Q2 2010
Publish BPM Drafts
Q3 2010
Begin Market Simulations
10/1/2010
End Market Simulations
1/31/2011
Go-Live
2/1/2011
April
May
June
July
Aug
Sept
Oct
Nov
Dec
Jan
Feb
Mar
2009
2010
2011
Design
Build
System Test
Market Sim
Requirements
SIBR rules versions 4.0 (published)
External
Business Requirements
Technical
Specifications
BPM Change Management
Training

6. Position Limits – Background
The CAISO will implement convergence bidding (CB) position limits in the initial implementation of this market element.
The position limits apply at the "corporate entity" level.
Example: If SC1 and SC2 are registered by the same corporate entity AND both of them submit supply convergence bids for a given internal Pnode1, then the sum of those two bid MWs (based on the maximum bid segment MWs) will be used to check against the position limit on Pnode1.
A given CB enabled SCID can submit a single supply convergence bid and a single demand convergence bid at a given location.

7. Request for Market Participant Feedback
Assumption: Corporate entity has more than one SCID that they use to submit physical bids to the CAISO
Questions:
1. Will one or multiple SCIDs be used to submit convergence bids?
2. If multiple SCIDs, is the intent to use multiple SCIDs to submit multiple bids at a single Pnode or will different CB enabled SCIDs be used to submit bids at mutually exclusive Pnodes/Apnodes?

8. Request for Market Participant Feedback
3. If multiple convergence bids submitted for a single Pnode using multiple SCIDs, is the intent to allocate a fixed percentage of the nodal limit to each SCID, or is the intent to allow flexibility in the “use” of the position limit by either SCID.
Consider SC1 and SC2 controlled by the same corporate entity.
If the overall position limit is 10% and the nodal MW limit is 10MW, is it the intent to have the corporate entity determine that SC1 has a static limit of 7 MWs and SC2 has a static limit of 3 MWs.
Slide 8

9. AC Power Flow Convergence Testing – Summary
A whitepaper describing AC power flow testing executed by the CAISO has been posted.
The paper describes the scenarios executed, a summary of the results and key conclusions.
The results were discussed on the October 1 Working Group call.

10. Open Q&A