NOTICE DATE: June 14, 2016
NOTICE TYPE: W-A020416-05 Operations
SHORT DESCRIPTION: Reminder - EMS Upgrade Cutover
INTENDED AUDIENCE: ERCOT Market Participants
DAY AFFECTED: June 16 2016, 10:30 - 13:30 CPT
LONG DESCRIPTION: ERCOT will be performing an Energy Management System (EMS) Upgrade cutover on Thursday, June 16, 2016 that replaces the existing EMS with the upgraded EMS in the production environment. The implementation will be performed at 10:36 CPT dependent on Grid conditions and all post-cutover activities will be completed by 13:30 CPT.
As part of the cutover, an upgraded System Operations Test Environment (SOTE) system will replace the current SOTE system.
During the EMS 3.0 Upgrade Program cutover:
* The current ICCP System will be used and it will be recycled at the start of the Upgraded EMS cutover. Therefore, the Upgraded EMS 3.0 will be receiving Telemetry from Market Participants through the existing ICCP systems.
* The current Production EMS 2.3 will be disconnected from the existing ICCP, Market Management System (MMS), Settlements, Market Information System (MIS), Enterprise Data Warehouse (EDW) and other downstream systems.
* The Upgraded EMS 3.0 will be monitoring and controlling the ERCOT Transmission Grid and providing data to MMS, Settlements Systems, MIS, EDW and other downstream systems and applications from the time of cutover.
* The Upgraded EMS 3.0 will be sending Regulation signals, Base Points, Updated Desired Base Points (UDBPs), and Resource-specific Locational Marginal Prices (LMPs) to Market Participants through existing ICCP systems.
* The current System Operations Test Environment (SOTE) system will be available for Transmission Service Providers (TSPs) for 30 days after cutover to perform their STNET studies for any pre-cutover dates.
Note that the EMS 3.0 Upgrade system cutover activities are scheduled to begin at approximately 10:36CPT; however, the start time may be delayed depending on system conditions at that time. A Hotline call to Market Participants will be executed prior to start of the cutover process.
Impacts during EMS Upgrade 3.0 System Cutover:
* MMS - Security-Constrained Economic Dispatch (SCED)/Look Ahead SCED applications may be unavailable from 10:40 until 11:00 CPT during the transition from current Production EMS to Upgraded EMS.
* Base Points from SCED may not be created from 10:40 until 11:00 CPT. During this period, Qualified Scheduling Entities (QSEs) with Resources may be required to follow Emergency Base Points from ERCOT Load Frequency Control.
* SCED Real-Time LMPs may not be calculated and published from 10:40 until 11:00 CPT.
* 15-minute Real-Time Settlement Point Prices (RTSPPs) may not be calculated and published during the 10:40 until 11:00 CPT time frame. MMS will calculate and publish the RTSPPs for this duration once cutover is completed.
* The MIS Public Area dashboards and displays will not be populated with data during the transition.
* The following Current Day Reports (CDR) containing SCED/Real-Time Dispatch (RTD)/LMP/SPP data may be unavailable during the transition from 10:40 until 11:00 CPT.
* SCED and RTD Reports
* Network Security Analysis (NSA) Active and Inactive Constraint Reports
* State Estimator Reports
* Real-Time Dynamic Rating Data Reports
* Wind Power Production - 5-minute Averaged Actual values
* Solar Power Production - 5-minute Averaged Actual values
ACTION REQUIRED: QSEs with Resources may be instructed to follow Emergency Base Points during the transition of the EMS.
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 [log in to unmask]<mailto:[log in to unmask]>.
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