Congestion Revenue RightsMarket Trials Call19 March, 2010

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

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Agenda

I. Market Trials Roadmap

II. Documents Posted Since Last CRR Market Call

III. Outages

IV. General Update

V. Known issues

VI. Successful CRR Qualifications as of 4pm yesterday

I. Amber Participants

II.Red Participants

VII. CRR3 Metric Redefined

VIII. Upcoming Activities

IX. Questions/Comments

X. FAQ

Slide 3

Market Trials 2010 Roadmap

http://nodal.ercot.com 4

Documents Added Since Last Market Call

All Documents Found at http://nodal.ercot.com/readiness/markettrials/crr/index.html

• CRR Qualification Dashboard: 03/12/10 (No new activity, No update to be posted)

• CRR Known Issues Compiled 03/12/2010 (Update will be posted Monday)

http://nodal.ercot.com 6

Environment Report: Planned / Unplanned Outages

Planned Outages• Weekend Upgrade:

• Outage Scheduler and CRR Market are not supported on weekends and will be offline Friday 6pm-Monday 8am.

http://nodal.ercot.com 7

Standing Reports and Updates: General reminders / updates

Network Model Update• Next scheduled load is 3/31/2010

Reminder of market call schedule:• 09:00 AM-10:00 AM Outage Scheduling• 10:00 AM-11:00 AM Congestion Revenue Rights• 11:00 AM-12:00 PM Day Ahead Market / RUC /

SASM• 12:00 PM-01:00 PM Break• 01:00 PM-02:00 PM Real Time Market / LFC

• WebEx Details will be posted at: http://www.ercot.com/committees/nodal/mt/

http://nodal.ercot.com 8

Standing reports and updates: General Reminders / Updates

Reminder of Phase 4 Kick-Off Call next Thursday

• Thursday, March 25 9am-3pm, Austin Airport Hilton

• http://www.ercot.com/calendar/2010/03/20100325-MT

• WebEx available

Reminder of published the Market Trials Phase 4 Handbooks• Outage Scheduler covering Phase 4.0

http://nodal.ercot.com/readiness/markettrials/os/index.html • Real Time Market / LFC covering Phase 4.0

http://nodal.ercot.com/readiness/markettrials/rtm/index.html • CRR covering release Phase 4.0

http://nodal.ercot.com/readiness/markettrials/crr/index.html • Settlements / COMs covering Phase 4.0

http://nodal.ercot.com/readiness/markettrials/coms/index.html • Day-Ahead Market Phase 4.0

http://nodal.ercot.com/readiness/markettrials/dam/index.html

Known Issues - Fixed: validated and ready for deployment (03/21/2010 8:00 AM)

• 0.1MW Error in awarded MW

• Some MW Flow values are not equal to Limit in Binding Constraint download file

• A resource that has been identified as "Restricted" cannot be requested in a "Buy" trade in the bilateral market.

• When entering nominations via the GUI, the numeric keypad does not properly function.

• The phone number in a bilateral trade contact information is limited to 20 characters. The error message for going over 20 characters is vague.

• Performance Test (2 Issues)

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Known Issues - Fixed: validated and ready for deployment (03/21/2010 8:00 AM) - Continued

• Not able to sell (offer) OBL PCRR past 1st month

• Lock Time for self-imposed credit for an Account Holder is at 12:00:01am; but 5:00:00pm for Counterparty

• Market Results Private Download file for Allocations does not contain all required information (clearing prices, and pricing factor)

• Market Results Public Download Bids and Offers file for Auctions shows awarded MW instead of bidded MW

• Bilateral trades in “Pending Credit Check” status are subject to the bilateral trade cleaning process

Known Issues - New

• Bilateral trades allow a 24-Hour Buy request in the dropdown list

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Known Issues – In Progress

• Awarded PTP CRR is .1 MW less than bid for Obligation but clearing price is above bid price

• Not all settlement points from the Network Model database were mapped to the CRR Model

• Model Data Issues related to “Planning Go-Live”Connectivity Node – Connectivity Node Group MappingConnectivity Node Name

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Known Issues – Closed

• Monitored Lines and Transformers contains no data

• JAN2010 CRR Monthly Network Model report file (11204) does not contain all the required network files

• Portfolio upload - Portfolio Editor becomes unusable when uploading a "targeted" bid portfolio containing a valid source/sink that is not biddable for that specific auction

• The slack bus in the March published models does not have a generator

• Invoices do not currently render when clicked on

• Inactive link in MIS Applications tab for Counterparty

Successful CRR Qualifications

As of 1600 CPT Thursday

65

Congratulations!

Slide 14

Successful CRR Qualifications as of 1600 CPT yesterday

ACCENT ENERGY TEXAS LP (CRRAH) GEUS (CRRAH)CITY OF AUSTIN DBA AUSTIN ENERGY (CRRAH) GREEN MOUNTAIN ENERGY COMPANY (CRRAH)AEP ENERGY PARTNERS INC (CRRAH) CITY OF GEORGETOWN (CRRAH)AMERICAN ELECTRIC POWER SERVICE CORPORATION (CRRAH) IPA TRADING LLC (CRRAH)

AIR LIQUIDE LARGE INDUSTRIES US LP (CRRAH) J ARON AND COMPANY (CRRAH)ANP FUNDING I LLC (CRRAH) JUST ENERGY TEXAS LP (CRRAH)BP ENERGY COMPANY (CRRAH) KEYSTONE ENERGY PARTNERS LP (CRRAH)BROWNSVILLE PUBLIC UTILITIES BOARD (CRRAH) LOWER COLORADO RIVER AUTHORITY (CRRAH)BRAZOS ELECTRIC POWER CO OP INC (CRRAH) LOUIS DREYFUS ENERGY SERVICES LP (CRRAH)BRYAN TEXAS UTILITIES (CRRAH) LUMINANT ENERGY COMPANY LLC (CRRAH)CARGILL POWER MARKETS LLC (CRRAH) MIDAMERICAN ENERGY COMPANY (CRRAH)CALPINE POWER MANAGEMENT LP (CRRAH) MORGAN STANLEY CAPITAL GROUP INC (CRRAH)

CITIGROUP ENERGY INC (CRRAH) NRG TEXAS POWER LLC (CRRAH)CONOCOPHILLIPS COMPANY (CRRAH) OCCIDENTAL POWER SERVICES INC (CRRAH)CONSTELLATION ENERGY COMMODITIES GROUP INC (CRRAH) OCCIDENTAL POWER MARKETING LP (CRRAH)

CPS ENERGY (CRRAH) OPTIM ENERGY MARKETING LLC (CRRAH)DB ENERGY TRADING LLC (CRRAH) RAINBOW ENERGY MARKETING CORPORATION (CRRAH)DIRECT ENERGY LP (CRRAH) RAYBURN COUNTRY ELECTRIC COOPERATIVE INC (CRRAH)DENTON MUNICIPAL ELECTRIC (CRRAH) THE ROYAL BANK OF SCOTLAND PLC (CRRAH)DESERT SKY WIND FARM LP (CRRAH) RELIANT ENERGY POWER SUPPLY LLC (CRRAH)DTE ENERGY TRADING INC (CRRAH) SEMPRA ENERGY SOLUTIONS LLC (CRRAH)

EDF TRADING NORTH AMERICA LLC (CRRAH) SEMPRA ENERGY TRADING LLC (CRRAH)EC AND R ENERGY MARKETING LLC (CRRAH) SHELL ENERGY NORTH AMERICA (US) LP (CRRAH)EDISON MISSION MARKETING AND TRADING INC (CRRAH) STAR ELECTRICITY LLC DBA STARTEX POWER (CRRAH)EXELON GENERATION COMPANY LLC (CRRAH) SOUTH TEXAS ELECTRIC COOPERATIVE INC (CRRAH)FIRST CHOICE POWER LP (CRRAH) GDF SUEZ ENERGY MARKETING NA INC (CRRAH)FORMOSA UTILITY VENTURE LTD (CRRAH) GDF SUEZ ENERGY RESOURCES NA INC (CRRAH)FORTIS ENERGY MARKETING AND TRADING GP (CRRAH) TENASKA POWER SERVICES CO (CRRAH)NEXTERA ENERGY POWER MARKETING LLC (CRRAH) TRENT WIND FARM LP (CRRAH)

CITY OF GARLAND (CRRAH) TRIEAGLE ENERGY LP (CRRAH)FRANKLIN POWER LLC (CRRAH) PSEG ENERGY RESOURCES AND TRADE LLS (CRRAH)EPIC MERCHANT ENERGY TX LLC (CRRAH) TEX-LA ELECTRIC COOPERATIVE OF TEXAS INC (CRRAH))BJ ENERGY LLC (CRRAH))

If the Report were run today, the following participants would be RED (No record of contact regarding Qualification)

AMBRIDGE ENERGY LLC (CRRAH)COMMERCE ENERGY INC (CRRAH)CREDIT SUISSE ENERGY LLC (CRRAH)PEPCO ENERGY SERVICES INC (CRRAH)PRIVATEMARKETS INC (CRRAH)VELOCITY AMERICAN ENERGY MASTER I LP (CRRAH)MERRILL LYNCH COMMODITIES INC (CRRAH)

CRR3 Operation of CRR Auctions and Allocations

Requires participation in at least every other Market Trials auction and/or allocation

Tentative light up date for GREEN/WHITE only on 3/24. RED/AMBER will not light up until after May Bid Window closes on 4/15

Participation equals submission of CRR bids, offers, credit, or participation in the allocation

March Auction Participation – 41/73 CRRAHs participated

April Auction Participation – 39/73 CRRAHs participated

Nodal Scorecard Reminder

Upcoming CRR Market Trial Activities

• Monday, 22 March (or earlier)» PCRR Nomination Window Closes for May and

Balance of Year Allocations

Open Question Time

Questions?

Slide 19