UNITED STATES OF AMERICA
BEFORE THE
FEDERAL ENERGY REGULATORY COMMISSION

)
California Independent System			)	Docket Nos. EC96-19-           
	Operator Corporation			)	                      ER96-1663-          
)

SUBMISSION BY THE CALIFORNIA INDEPENDENT SYSTEM OPERATOR CORPORATION OF REVISED STAGING PLAN NO. 5

I.	INTRODUCTION
In compliance with the Commission’s October 30, 1997 order in the above-referenced proceeding, the California Independent System Operator Corporation (“ISO”) respectfully submits the ISO’s Revised Staging Plan No. 5.  Contemporaneous with this submission, a copy of Revised Staging Plan No. 5 will be posted on the ISO’s Home Page (www.caiso.com).

II.	BACKGROUND
In its July 30, 1997 order, the Commission instructed the ISO to file a staging plan that would indicate when the ISO planned to implement those aspects of the California restructuring proposal that would not be implemented on the ISO Operations Date.  In its subsequent October 30 Order, the Commission directed the ISO to:
file with the Commission quarterly status reports regarding the status of the restructuring implementation, with particular emphasis on any significant changes in operations or timing that are anticipated, and we will respond as necessary.  The Commission clarifies that these status reports would be filed to inform the Commission and the parties; we do not intend to notice these reports for public comments.

Revised Staging Plan Nos. 1, 2, 3, and 4 were filed on November 21, 1997, January 7, 1998, April 6, 1998, and July 22, 1998 respectively.
	Revised Staging Plan No. 4 was submitted in a different and more detailed format than prior staging plans.  This format included an attached matrix containing the following information: (1) a list of 91 work items, (2) a description of each item, (3) a priority attached to each item, and (4) a target date for implementation of each item.  The process by which these work items were prioritized involved significant participation by ISO market participants, as described in the July 22 Staging Plan No. 4 submittal.  Priority 1 was assigned to those items essential to maintaining ISO Control Area reliability, ISO market operations, and assuring ISO settlement integrity.  Priority 2 items were defined as those critical to improving Control Area reliability, market operations, and settlement integrity.  Those items which were not deemed necessary or critical to these goals but which were otherwise viewed as desirable by the ISO and the market participants were designated as Priority 3 items.
	The ISO now submits Revised Staging Plan No. 5, in the same format as Revised Staging Plan No. 4, in order to apprise the Commission, the parties to this proceeding, and other stakeholders of the current status of its implementation plans.
III.	REVISED STAGING PLAN NO. 5
The ISO has fully completed 14 of the work items identified in Revised Staging Plan No. 4.  Perhaps most significantly, Work Item 34, which concerns software modifications to permit import bids and self-provided interchange schedules for Ancillary Services was implemented.  Other completed items include the following:

Item Number	Description	
26	Improvements to the ISO Similar Day Load Forecast program’s forecasting capabilities	
29	Modifications to the SI Public Market Information displays to provide additional data	
12.1	Modification of the EMS System to provide manual replacement functionality	
18	Enhancement to implement Scheduling Coordinator meter data submission deadlines and data queues	
20	25 hour DST testing	
21	Identification and resolution of critical single points of failure in ISO systems	
23	Deployment of secure remote access	
24	Market Surveillance System installation and support	
25	Installation of BBS Backup Server	
78	Modifications to manual line item entry to allow changes after preliminary statement	
79	Modifications to manual line item entry to provide additional copy/reverse functionality for existing entries	
33	Ancillary Services CONG interface modifications	
45	Manual Adjustments Settlement Data Upload	

The ISO has also completed stages or elements of various other work items, as indicated in the Comments column of the attached matrix.
Since submitting Revised Staging Plan No. 4, the ISO has identified a number of new work items.  Most of these work items relate to the ISO’s ongoing efforts to address issues involving the ISO’s Ancillary Services markets.  These new Ancillary Services work items can be found on pages 13 through 16 of the attached matrix.  Many of these items also relate to the ISO’s Ancillary Services market Work Plan, described by the ISO in its September 4 Comments and October 2 Update submitted in Docket Nos.ER98-2843 et al. and its September 22 Status Report submitted in Docket Nos. EC96-19-027 and ER96-1663-028.  In addition, Item Number 41.1, a new work item related to the ISO’s upcoming Firm Transmission Rights auction, can be found on page 8 of the attached matrix.  All new work items have been designated Priority 1 items.  The ISO has completed Item 123, one of the new work items involving modifications to ASM input parameters, as noted on page 16 of the attached matrix.
Finally, the ISO has revised the target release dates of various work items to reflect the most up-to-date information on planned software modifications and other efforts to implement the ISO’s Staging Plan.

IV.	CONCLUSION
For all the foregoing reasons, the California Independent System Operator Corporation respectfully submits Revised Staging Plan No. 5.
	Respectfully submitted,

________________________________			_____________________________
N. Beth Emery						Edward Berlin
Vice President and General Counsel			Kenneth G. Jaffe
Roger E. Smith, Regulatory Counsel			David B. Rubin
The California Independent				Sean A. Atkins
     System Operator Corporation				Swidler Berlin Shereff Friedman, LLP
151 Blue Ravine Road					3000 K Street, N.W.
Folsom, CA 95630						Washington, D.C.  20007
Tel: (916) 351-2334						Tel: (202) 424-7504
Fax: (916) 351-2350					Fax: (202) 424-7643

	Attorneys for the California Independent System Operator Corporation

Date: October 19, 1998

	CERTIFICATE OF SERVICE

I hereby certify that I have this day served the foregoing ISO Revised Staging Plan No. 5 upon each person designated on the official service list compiled by the Secretary in the above-referenced dockets, in accordance with the requirements of Rule 2010 of the Commission’s Rules of Practice and Procedure, 18 C.F.R. § 385.2010 (1998).
Dated at Washington, D.C. on this19th day of October, 1998.

______________________________________
David B. Rubin
Sean A. Atkins

	October 19, 1998

David P. Boergers
Secretary
Federal Energy Regulatory Commission
888 First Street, N.E.
Washington, D.C.  20426

Re:  	California Independent System Operator Corporation
Docket Nos. EC96-19-           and ER96-1663-          

Dear Secretary Boergers:

Enclosed for filing is the California Independent System Operator Corporation’s Revised Staging Plan No. 5.  An additional copy of the filing is also enclosed.  Please stamp the additional copy with the date and time filed and return it to the messenger.

Thank you for your assistance in this matter.

 				Respectfully submitted,

                                                                 
Edward Berlin
Kenneth G. Jaffe
David B. Rubin
Sean A. Atkins

Attorneys for the California 
Independent System Operator Corporation
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