Issues

SCR754

Summary
Action
Voting Record
Background
Key Documents

Summary

Title	Replace Email Delivery of WGRPP Forecasts (formerly "WGRPP Forecasts Posted on Zonal TML")
Next Group
Next Step
Status	Approved on 04/22/2009

Action

Date	Gov Body	Action Taken	Next Steps
04/22/2009	BOARD	Approved
04/09/2009	TAC	Recommended for Approval	ERCOT Board consideration of SCR754
03/19/2009	PRS	Recommended for Approval	TAC consideration of SCR754
03/18/2009	WMS	Recommended for Approval	PRS consideration of SCR754
01/28/2009	WMS	Recommended for Approval	WMS Impact Analysis review

Date

Gov Body

Action Taken

Next Steps

04/22/2009

BOARD

Approved

04/09/2009

TAC

Recommended for Approval

ERCOT Board consideration of SCR754

03/19/2009

PRS

Recommended for Approval

TAC consideration of SCR754

03/18/2009

WMS

Recommended for Approval

PRS consideration of SCR754

01/28/2009

WMS

Recommended for Approval

WMS Impact Analysis review

Voting Record

Date	Gov Body	Motion	Result
04/22/2009	BOARD	To approve SCR754 as recommended by TAC.	Passed
04/09/2009	TAC	To recommend approval of SCR754 with a priority of 2-High and rank of 39.2 as recommended by WMS and PRS.	Passed
03/19/2009	PRS	To assign a priority of 2-High and rank of 39.2 for SCR754.	Passed
03/18/2009	WMS	To grant SCR754 Urgent status, recommend approval of SCR754 as amended by the 2/16/09 ERCOT comments, and endorse and forward the Impact Analysis and CBA with a recommended project priority of 2-High and ranking of 39.2. All Market Segments were present for the vote.	Passed
01/28/2009	WMS	To recommend approval of SCR754 as submitted.	Passed

Date

Gov Body

Motion

Result

04/22/2009

BOARD

To approve SCR754 as recommended by TAC.

Passed

04/09/2009

TAC

To recommend approval of SCR754 with a priority of 2-High and rank of 39.2 as recommended by WMS and PRS.

Passed

03/19/2009

PRS

To assign a priority of 2-High and rank of 39.2 for SCR754.

Passed

03/18/2009

WMS

To grant SCR754 Urgent status, recommend approval of SCR754 as amended by the 2/16/09 ERCOT comments, and endorse and forward the Impact Analysis and CBA with a recommended project priority of 2-High and ranking of 39.2. All Market Segments were present for the vote.

Passed

01/28/2009

WMS

To recommend approval of SCR754 as submitted.

Passed

Background

Status:	Approved
Date Posted:	Dec 23, 2008
Sponsor:	ERCOT
Urgent:	Yes
Sections:	N/A
Description:	In accordance with Protocol Section 4.4.15, QSE Resource Plans, ERCOT shall produce renewable production potential forecasts for Wind-powered Generation Resources (WGRs) to be used as the planned operating level in the Resource Plan during Replacement Reserve Service (RPRS) procurements. Upon approval of PRR763, Use of WGRPP as Planned Operating Level in Day-Ahead Resource Plan for WGRs, ERCOT implemented the WGR Production Potential (WGRPP) forecast without delay by having the WGRPP forecasting service email forecasts directly to each WGR Qualified Scheduling Entity (QSE). The email process proved to cause unacceptable delivery delays and errors for QSEs. This System Change Request (SCR) proposes to provide a secure and programmatic means to supply the WGR QSEs with their forecasts by: o Provide WGR QSEs their forecasts through the zonal Extensible Markup Language (XML) Market User Interface (MUI). o A WGR QSE can obtain its current forecasts by submitting a query through the zonal XML MUI. o This will be through a query as specified in the "ERCOT Participant Interface: XML" document. o Past forecasts will not be available after each hour. o ERCOT may restrict the frequency of these queries to protect system availability.
Reason:	The current email solution is unreliable and cumbersome. The email process proved to cause unacceptable delivery delays and errors for QSEs.