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GENMAP RegistrationWorkshop

Jan 14, 2010

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Antitrust Admonition

ANTITRUST ADMONITION

ERCOT strictly prohibits Market Participants and their employees who are participating in ERCOT activities from using their participation in ERCOT activities as a forum for engaging in practices or communications that violate the antitrust laws. The ERCOT Board has approved guidelines for members of ERCOT Committees, Subcommittees and Working Groups to be reviewed and followed by each Market Participant attending ERCOT meetings. If you have not received a copy of these Guidelines, copies are available at the Client Relations desk. Please remember your ongoing obligation to comply with all applicable laws, including the antitrust laws.

DISCLAIMER

All presentations and materials submitted by Market Participants or any other Entity to ERCOT staff for this meeting are received and posted with the acknowledgement that the information will be considered public in accordance with the ERCOT Websites Content Management Operating Procedure.

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Agenda

• Antitrust Admonition

• RARF Updates

• MP11 Timelines

• GENMAP Processing

• GENMAP Samples

• General info

• Q&A / Open Forum

ERCOT asks that you log into the WebEx using your company name then your name. This will allow us to take roll call offline. If you have not

logged in with your company name, please use the WebEx chat to tell the host your company is represented

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Updates and Progress

• RARF Transmission Data Collection ended 12/01/2009– 203 total RARF sites– 195 Accepted– 8 sites Incomplete– 60 sites missing PSSE data

(Contact NodalMarketTransition@ercot.com if having issues)

– Resource Readiness Scorecard posted

http://nodal.ercot.com/readiness/scorecard/index.html

GENMAP OVERVIEW

Identifying Resource Nodes – Key Reasons for Modeling Accuracy

Network Operations Model– Annual/Monthly CRR Auctions. – MMS and EMS commercial and operations.

DAM Clearing and Settlements– CRR offers and bids and offers.– DAM Resource-Specific Energy offers – DAM Energy Only offers.– DAM Energy bids

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GENMAP OVERVIEW

Identifying Resource Nodes – Key Reasons for Modeling Accuracy

RTM Clearing and Settlements

– Dispatch and Pricing.

– Pricing for RTM settlement at Resource Node.

– Pricing at EPS Meters for Production Settlement

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GENMAP Processing

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•Resource Node mapping is per Procedure for Identifying Resource Nodes (July 23, 2008) http://nodal.ercot.com/mktrules/np/index.html

•Nodal procedure allows 5 business days to turn GENMAP package around

•10 business days per MP11

•MP11 Metric applies to GENMAP, DME, RARF, and RARF True-Up

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GENMAP Processing

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Updates and Progress

2010

DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

MP11 - GENMAP Verifications

(January 18 thru April 1)

MP11 – DME Declarations

(Dec 7 through January 8)

MP11 - RARF True-up

(February 1 thru April 1)

Nodal Market Go-Live

(December 1, 2010)

MP11 - RARF Transmission Data

(June 15 thru Dec 1, 2009)

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GENMAP Package

GENMAP Sample one-line

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SAMPLE GENMAP ONE-LINE

Test_Line1 Test_Line2 Test_Line3

Dsw_G3Dsw_G2Dsw_S1

TEST_TESTUNIT3TEST_TESTUNIT1

12201210

TEST_TESTUNIT2

Dsw_1231

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GENMAP Unit-Associated Spreadsheets

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GENMAP Non Unit-Associated Spreadsheets

GENMAP Defined

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GENMAP Packet Defined

Unit and Associated Resource Nodes: The GENMAP’s first page contains the mapping of generating units to Resource Nodes, or Settlement Points. Information such as the Unit’s and Resource Node’s substation, as well as the Resource Node’s voltage level and Connected Devices are listed. The Connected Devices are of all of the devices at a connectivity node where the Resource Node is located. Note that the Resource Node may not be located at the same connectivity node as the generating unit.

Unit-Associated EPS Meters: The Unit-Associated EPS Meters page shows the mapping of each generating unit to one or multiple EPS Meters. Information such as the Unit and EPS Meter’s substation, as well as the EPS Meter’s Meter ID, RID and Connected Devices are given. The Connected Devices consist of the devices at the connectivity node(s) where the EPS Meter is located. Note that a Unit-Associated EPS Meter may be located at a different substation than its mapped generating unit.

Unit-Associated EPS Flow-Calculation Modeling: The Unit-Associated EPS Meter Flow-Calculation Modeling page shows the mapping between a Unit-Associated EPS Meter and its associated conducting equipment used in the Flow-Calculation. Information such as the Unit and EPS Meter’s substation, Meter ID, RID and Connected Devices are given. The Flow-Calculation’s direction at the connected device is also given. See Explanation Verifying EPS Meter Flow-Calculation Modeling below.

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GENMAP Unit-Associated Resource Node Spreadsheet

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GENMAP Unit-Associated EPS Meter Spreadsheet

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GENMAP Unit-Associated EPS Flow Spreadsheet

1. EPS Flow is FALSE if it points FROM the connected device listed2. EPS Flow is TRUE if it points TO the connected device listed

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GENMAP Non Unit-Associated EPS Meter Spreadsheet

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GENMAP Non Unit-Associated EPS Flow Spreadsheet

1. EPS Flow is FALSE if it points FROM the connected device listed2. EPS Flow is TRUE if it points TO the connected device listed

Resource Node & Meter Mapping Verification form

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General Info

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•The one-lines are provided for two reasons – one to verify the accuracy of the meter and unit location on the one-line; the second as a tool to verify the mapping.•Each node and meter will have reference “Connections”. Each item listed in the connection column will refer to all equipment electrically connected to the node or meter point. These connections are represented as [CB]1234 or [XFMR]U1 and are shown on the one-line screenshots. •The connections column identifies the equipment type by offsetting the type in brackets, such as [CB]1234, where [CB] refers to the equipment type Circuit Breaker. The list below identifies the common equipment types:

o[XFMR] Transformer o[CB] Circuit breaker o[DSC] Disconnect (switch) o[UN] Generation Unit o[LN] Line o[LD] Loado[SERIES] Series Deviceo[SVC] Static-Var

Note: Transformer naming convention in GENMAP pkg is power transformer concatenation and may not match names provided in the RARF.

•The one-line screenshot uses several colors to define the operating voltage of the equipment and buses represented. The list below identifies the voltages associated with each color:

oPurple: 345kV oGreen: 138kV oBlue: 69kV oPink: Other voltages

Contact

• For questions contact NodalMarketTransition@ERCOT.com or your Account Manager

• You can request a private conference if necessary by sending an email or contacting you Account Manager.

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Q&A