NOTICE DATE:  May 23, 2008

NOTICE TYPE: M-B021908-03   Legal and Extracts


SHORT DESCRIPTION: Decommissioning of 180-day and 90-day extracts which
have been replaced by 60-day Entity-Specific Disclosures required by
P.U.C. SUBST. R. 25.505

INTENDED AUDIENCE:  All Market Participants

DAY AFFECTED:  Publications on and after June 2, 2008

LONG DESCRIPTION:  Over the past six months ERCOT has shortened the
timing of many QSE specific data disclosure reports in support of P.U.C.
SUBST. R. 25.505.  For existing reports, ERCOT has placed the daily
60-day files into the same extract directories as the existing monthly
180-day reports.  With the beginning of June 2008, the 180-day and
90-day reports that are scheduled to be run will overlap with the
disclosures in the 60-day files, so ERCOT is retiring the 180-day and
90-day extracts for the applicable reports.

This notice is to communicate the system change that ERCOT will
discontinue the 180-day and 90-day disclosures, as applicable, effective
on June 2, 2008.  The postings for the nine reports are centralized on
the ERCOT Planning and Market Reports page at

 The impacted extracts are:

Final Energy Schedule by QSE -

Final Ancillary Service Schedule by QSE -

Resource Plans by QSE -

Actual Output by Resource -

Dispatch Instructions -

Dynamic Load and Generation by QSE -

Entity Specific Bid Curves for BES (aka Individual BES Bids) -

Entity-Specific Ancillary Serve Bid Stack Capacity (aka Individual AS
Bids) -

Entity-Specific Replacement Reserve Services Bid Information (aka
Individual RPRS Bids) -


ADDITIONAL INFORMATION: The list of reports required by P.U.C. Subst. R.
25.505 for the zonal market and their locations may be found at in the key documents section. You
may also view the full text of P.U.C. Subst. R. 25.505 at

CONTACT: If you have any questions, please contact your ERCOT Account
Manager. You may also call the general ERCOT Client Services phone
number at (512) 248-3900 or contact ERCOT Client Services via e-mail at
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