NOTICE DATE: January 28, 2014
NOTICE TYPE: W-A123013-02 Operations
SHORT DESCRIPTION: Implementation of generic
shadow price caps for previously irresolvable constraints in SCED
INTENDED AUDIENCE: ERCOT Market Participants
DATES AFFECTED: January 29, 2014
LONG DESCRIPTION: Market Notice W-A123013-01
Operations, issued on December 30, 2013, indicated that as of January 29, 2014, the following constraints will no longer be considered irresolvable by SCED:
Contingency Name |
Constraint Name |
Description |
Current |
Maximum |
DGRSLNC5 |
6856__B |
Graham to Long Creek 345 kV overloads |
$2,000.00 |
$2,800.00 |
SODBODN9 |
6860__A |
Odessa Basin Sw to Odessa North 69 kV overloads |
$2,320.68 |
$2,800.00 |
DW_DDEN8 |
AIR_W_DE_1 |
Denton - Argyle / West Denton 138 kV overloads |
$2,000.00 |
$3,500.00 |
SNCWMOS8 |
ODNTH_FMR1 |
Holt Sw - Moss Sw 138 kV overloads Odessa North 138/69 kV transformer |
$2,000.00 |
$3,500.00 |
XWI2N89 |
6920_E_1 |
Wink Tnp Winkat1 138/69 kV overloads |
$2,000.00 |
$2,800.00 |
Section 3.6 of the business practice document, Methodology for Setting Max Shadow Prices, requires a 30-day notice before the
shadow price caps for SCED resolvable constraints are reset to their default values. As indicated in Market Notice W-A123013-01 Operations, the generic transmission shadow price caps will be used in SCED, in accordance with Section 3.5 of the ERCOT Business
Practice document, effective January 29, 2014.
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 email at
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