NOTICE
DATE: April
30, 2008
NOTICE
TYPE: W-A043008-01 Settlements
CLASSIFICATION:
Public
SHORT
DESCRIPTION: Corrupt data in calculations of price
adjustments for Non-Spinning Reserve Service
INTENDED
AUDIENCE: QSEs
DAY
AFFECTED: Operating Day April 22,
2008
LONG
DESCRIPTION:
ERCOT has discovered that a number of files used to yield the price
adjustments for Non-Spinning Reserve Service for Operating Day April 22,
2008 (intervals 1645 through 2115) included corrupt data. The price adjustments posted April
23, 2008 were related to Market
Clearing Prices for Energy (MCPEs) adjustments required as a result of the
Protocol changes implemented by PRR 650, Balancing Energy Price Adjustment Due to
Non-Spinning Reserve Service Deployment. In light of the corrupt data, ERCOT will
restore the MCPEs to their original values,
then recalculate and repost the validated price adjustments once these
data files are restored and the underlying data
verified.
The Initial Settlements Statements for April 22, 2008
(intervals 1645 through 2115), will use
the originally posted (non-adjusted) Balancing Energy Service MCPEs
for the affected intervals. After ERCOT validates the data and
recalculates the MCPEs, future Settlements will use the adjusted
prices.
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 [log in to unmask].
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