10/27/09 – SEM Update

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10/27/09 – SEM Update Woody Rickerson Manager ERCOT Network Modeling

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10/27/09 – SEM Update. Woody Rickerson Manager ERCOT Network Modeling. History ERCOT Network Operations Model. 2000 – June 2009. June 2009 – Sep 2009. Sep 2009 –Nodal Go-live. Nodal Go-live. SEM. Nodal Model. Nodal Model. Nodal Model. NOMCRs. SRs. NOMCRs. ERCOT. NOMCRs. - PowerPoint PPT Presentation

Transcript of 10/27/09 – SEM Update

Page 1: 10/27/09 – SEM Update

10/27/09 – SEM Update

Woody Rickerson

Manager ERCOT Network Modeling

Page 2: 10/27/09 – SEM Update

TSPs

SR

s

ERCOT

Zonal Model

TSPs

SR

s

ERCOT

Zonal Model NOMCRs

Nodal Model

TSPs

NO

MC

Rs

ERCOT

Zonal Model

Nodal Model

SR

s

TSPs

NO

MC

Rs

ERCOT

Nodal Model

2000 – June 2009 Sep 2009 –Nodal Go-liveJune 2009 – Sep 2009 Nodal Go-live

TODAY

History ERCOT Network Operations Model

SEM

Page 3: 10/27/09 – SEM Update

SEM Issues

• Owner/Operator Difficulty– Process to expedite ownership changes

• ERCOT has changed ownership of over 620 substations and 9000 pieces of equipment

• Nodal-Zonal conversion has slowed validation efforts

• ERCOT-required data in TSP ownership

• Access to NMMS

Page 4: 10/27/09 – SEM Update

TSP Model Change Activity during SEM

Over 60,000 data modifications have been made since the start of SEM

Over 24,000,000 data attributes in the model

OWNERNAME Type SUBMITTED APPROVED CANCELED REJECTED FINISHED CLOSED Total

AEP TEXAS CENTRAL COMPANY NOMCR    25 15 4 4 0 6 54AEP TEXAS NORTH COMPANY NOMCR    44 16 7 0 0 2 69AEP TEXAS NORTH COMPANY SPP NOMCR    1 0 0 1 0 1 3BRAZOS ELECTRIC POWER CO OP INC (TDSP) NOMCR    11 4 2 1 1 2 21BRAZOS ELECTRIC POWER CO OP INC (TDSP) SAMR     1 0 0 0 0 0 1CENTERPOINT ENERGY HOUSTON ELECTRIC LLC (TDSP) NOMCR    118 364 16 1 2 48 549CITY OF AUSTIN DBA AUSTIN ENERGY (TDSP) NOMCR    4 1 0 0 0 2 7CPS ENERGY (TDSP) NOMCR    18 12 1 0 0 10 41ERCOT NOMCR    67 73 55 2 2 472 671ERCOT SAMR     63 9 2 6 0 7 87LCRA TRANSMISSION SERVICES CORPORATION NOMCR    35 7 6 3 1 8 60ONCOR ELECTRIC DELIVERY COMPANY NOMCR    25 9 2 0 3 12 51SOUTH TEXAS ELECTRIC CO OP INC NOMCR    3 2 2 0 1 2 10TEXAS-NEW MEXICO POWER CO (TDSP) NOMCR    9 0 0 0 0 1 10

424 512 97 18 10 573 1634

Current Status

Page 5: 10/27/09 – SEM Update

NDSWG Coordination

• Bi-monthly Webex meetings• One-off special meetings for outstanding issues• Issue tracking worksheet

– Modeling issues– Modeling guide revisions– Development of Modeling Templates

• [email protected] for immediate problems

mailto:[email protected]

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