May/June 2009

APX is pleased to provide you with the latest ERCOT information to keep you informed of on-going market activities.


Legislative and Regulatory Issues of Interest

Some of the most important actions taken by the Texas Legislature and/or the Public Utility Commission of Texas (PUCT) during the last few weeks are:

In March 2008, APX released an early version of the APX MarketSuite to ERCOT clients to facilitate client participation in Texas Nodal testing and market simulation. APX will expand and enhance the APX MarketSuite to support the ERCOT Texas Nodal Market Trials later this year with an anticipated go-live date scheduled for late 2010. There will also continue to be enhancements to the APX MarketSuite in both the CAISO and ERCOT markets, based on APX experience and client input. More on ERCOT Nodal is provided in other sections of this issue.

ERCOT Nodal Update: TPTF Is Replaced with the Nodal Implementation Team and ERCOT Is Expected to Finalize Its Contract Renegotiations with Vendors Soon

Mike Clearly, Senior Vice President and Chief Technology Officer, regularly attends various ERCOT meetings, particularly monthly meetings of the Technical Advisory Committee and Board of Directors, to update various members on progress in the Nodal Project. He describes the timeline, status of various components of Nodal Project, and how defects and delays are handled by ERCOT to ensure the Nodal Implementation Project is to be completed within the budget and schedule approved by the Board. The main nodal-related points from the recent meetings are provided below:

  • In the June 4th TAC meeting, Mike introduced a new phrase, ERCOT Enhanced Reliability & Markets (EERM), to be used by ERCOT internally to cover both current Zonal operation as well as Nodal implementation. In his view, reliability includes Network Model Management System (NMMS), Energy Management System (EMS), and Operation System (OS) Projects while Markets include Market Management System (MMS), Congestion Revenue Right (CRR), and Commercial System (COMS) Projects. Then, he provided the recent Nodal Team staff additions to enhance program success. He emphasized on the importance of participants' readiness and informed TAC members that Vikki Gates has joined Nodal Team to lead ERCOT & Market Readiness activities, including the issue of "Parking Lot" that includes additional proposed revisions to the Nodal protocols that will be implemented after Go-Live date. Vikki is expected to have more detailed plan by July 19, including the name of ERCOT staff responsible for various tasks.

    Mike also added that Betty Day (who has been with ERCOT for nine years) will lead Program Control & Review to ensure proper traceability of what will be implemented. This will be in fact an internal auditing job to ensure success in Nodal implementation. To enhance her work, several new staff are added, including the addition of Bob Spangler (formerly with Luminant) and Floyd Trefny (formerly with Reliant), who both were very active in ERCOT Nodal development in the last several years and will be the Subject Matter Experts to assist ERCOT to ensure that what is proposed in the Nodal Protocols will be actually implemented to minimize any potential deviations.


  • In June 16 Board meeting, Mike acknowledged that only six out of thirteen tracking milestones scheduled for May were completed, however, he did not believe the resulting delays would have any impact on Nodal timeline and budget. However, he acknowledged that these delays will have some impacts on the budget. Currently, ERCOT plans to fully implement nodal design by December 1, 2010 at an estimated cost not to exceed $660 million. The latest estimated cost is $644 million and is expected to be further refined for July Board meeting after ERCOT completes its renegotiations with vendors by the end of June. Mike further reminded Board members of the overall risks facing Nodal project. The main points were:

    • Complete Integration System (Expected on 2-12-10): Resource availability remains a big risk factor.

    • The main risk facing Market Trials (Expected to begin on 2-12-10) remains to be reconciling Protocols, Systems and Market Expectations. Nodal Team is acting proactively to ensure that the final system is consistent with stakeholders' approved Nodal Protocols.

    • The main risk facing Go-Live (Expected on December 1, 2010) is the possibility of not having adequate Data Center capacity and integrity of Single Entry Model (SEM) data provided by Market Participants. Nodal Team is aware of this potential and is taking steps to eliminate this risk.

  • Nodal Implementation Team (NIT): In its June 4th meeting, TAC finalized its decision to establish a good replacement for Transition Plan Task Force (TPTF). TAC considered a proposal that included nine members representing seven segments (with Customers have three representatives with 0.5 vote each) and required monthly meetings with the public participation. NIT will also have frequent meetings within 24 hours whenever ERCOT requests for Market Participants' inputs. All decisions by NIT will be based on simple majority vote. Among NIT's core responsibilities are 1) assuring that Market Participant's interface software and ERCOT systems operate within the intent of the Nodal Protocols in a production environment and 2) evaluating Market Participant readiness metrics and scorecards. NIT is a Subcommittee under the Technical Advisory Committee and reports to TAC on monthly basis. The main concern was to further clarify ways to address any potential gap that may be found between the intended Nodal protocols and the latest software version. A decision was made to approve the creation of this new TAC Subcommittee with the first meeting set for June 22, 2009 when the representatives of various segments will elect a Chair and Vice Chair.

Finally, ERCOT has indicated August 31, 2009 as its Single Entry Model (SEM) Go-Live date. To facilitate expected work by Market Participants, ERCOT continues its regularly scheduled Thursday afternoon weekly meetings with stakeholders to share more details before SEM Go-Live date. As envisioned by the current Procedure, ERCOT will seek approvals from NIT/TAC/BOD prior to SEM Go-Live. Meanwhile Market Participants should continue to support required activities including telemetry, network model, and other activities needed for ERCOT to enhance its nodal implementation. In particular, ERCOT has already scheduled the following Focused Input Testing (FIT) for the next few weeks:

ALL TIMES ARE CENTRAL
Duration State date and time End date and time
27 hrs (3x9) June 30 - 8:00 am July 2 - 5:00 pm
27 hrs (3x9) July 14 - 8:00 am July 16 - 5:00 pm
27 hrs (3x9) July 28 - 8:00 am July 30 - 5:00 pm

Recent ERCOT Reports

The Electric Reliability Council of Texas issued several reports in the last few weeks. Summaries of main points in three reports are provided below:

  • ERCOT Carbon Study: In response to a request by the Chairman of the Public Utility Commission of Texas, ERCOT filed a report with the Commission on May 12, 2009 titled "An Analysis of Potential Impacts of CO2 Emission Limits on Electric Power Costs in the ERCOT Region". ERCOT performed several scenarios under various assumptions on key variables such as natural gas prices, various levels of energy efficiency achievements, and various levels of renewable generation resources. In addition, different carbon allowance costs ($/ton) were assumed to calculate the impacts on total annual wholesale power cost and wholesale power prices. The main findings are summarized below:

    • In the reference case, with $7/MMBtu natural gas prices, expected load levels and the existing and committed level of wind and other generation, the carbon allowance costs must rise to between $40 and $60 per ton in order to reduce carbon emissions from electric generation in ERCOT to 2005 levels by 2013. This level of allowance costs would result in an annual increase in wholesale power costs of approximately $10 billion and would increase a typical consumer's monthly bill (for 1,000 KWh) by $27. Higher natural gas prices at $10/MMBtu would result in an increase in wholesale power costs of approximately $20 billion. At such level, a much higher carbon allowance costs, well above $60 per ton, is required to achieve desired emission reductions.


    • Total CO2 emissions are reduced below 2005 levels at a carbon allowance price between $25 and $40 per ton at $7/MMBtu natural gas price if total energy use was reduced by 10%. This level of allowance costs would result in an annual increase in wholesale power costs of approximately $7 billion. At this allowance cost, a typical consumer's monthly bill would increase by $17.

    • The additional CREZ wind generation allows the targeted emissions reductions to be met at a lower allowance cost. At $7/MMBtu gas, the 2005 carbon emissions levels are met at an increase in annual wholesale power costs of approximately $7 billion. At this allowance cost, the increase in a typical consumer's monthly bill would be $22.


    • The combination of additional CREZ wind and lower energy usage results in smaller increases due to CO2 emissions limits in both wholesale power costs and the typical consumer's monthly bill at a $7/MMBtu gas price, as compared to the reference case.

    The full report is available at the the Commission website.

  • ERCOT 2008 Annual Report on the Texas Renewable Energy Credit Trading Program: The Public Utility Commission of Texas requires ERCOT to file its Annual REC Report by May 15. ERCOT filed its REC Report on May 13, 2009 under the Commission Project No. 27706. The Report indicated significant increase in renewable generation capacity in the REC Program during 2008 with 93 REC generation accounts and an installed capacity of about 8,600 MW which includes a total of six Offset generator accounts with a total capacity of about 298 MW. In addition, these resources accounted for over 17 million MWh of energy generated in 2008, an increase of about 70% over 2007 renewable generation. Wind resources accounted for about 95% of total renewable generation in 2008. The total adjusted REC requirement for all Retail Entities for 2008 as required by the Commission was 6,747,162 RECs. The difference between generated REC and its mandatory requirements could be banked for future use or offered into the voluntary market. Based on recently declassified data for 2007, Reliant, TXU Energy, and Constellation Energy were ranked the top three Retail Entities regarding REC requirements. The Report also listed the total amount or REC retired in 2007 for Mandatory and Voluntary markets as 3.4 million and 1.6 million, respectively. Full Report could be found under Project No. 27706 at PUC of Texas Interchange site.

  • May 2009 Report On The Capacity, Demand, And Reserves In The ERCOT Region: ERCOT prepares an annual resource adequacy assessment in May with an updated in December of each year. The latest Report was published on May 29, 2009 indicating adequate capacity within ERCOT Region above the minimum 12.5% target reserve margin throughout the forecast period, 2009 through 2014. The report also indicated other resources, including significant amount of mothball capacity, that could be relied upon if need arises. Full Report is available on the ERCOT website.
MW 2009 2010 2011 2012 2013 2014
Firm Load Forecast 62,266 62,699 64,137 66,037 68,042 69,480
Resources 72,712 75,314 76,215 77,287 79,122 79,122
Reserve Margin 16.8% 20.1% 18.8% 17.0% 16.3% 13.9%
Planned Units in
Full Interconnection
Study Phase
0 7,858 15,417 21,116 23,722 25,463

Participation in June-September Auction for the Emergency Interruptible Load Service (EILS) Shows Some Comeback

On May 19, 2009, ERCOT released the latest results of its procurement of EILS covering the Contract Period of June 1 through September 30, 2009. In contrast to the low amount of EILS offers in previous Contract Period (February-May), ERCOT received more offers in this period and prices are noticeably lower by a few dollars in average. ERCOT reported the following results:

February through May 2009 Contract Period
Total Cost for this Period: $6,361,774
Time Period Business Hours 1 Business Hours 2 Business Hours 3 Non-Business Hours
Definition 8 AM to 1 PM
Mon-Fri
except
Holidays
1 PM to 4 PM
Mon-Fri
except
Holidays
4 PM to 8 PM
Mon-Fri
except
Holidays
All other
Hours
EILS Procured 276.4 MW 154.7 MW 237.3 MW 255.6 MW
No. of EILS Resources 47 (includes 34 aggregations) 34 (includes 22 aggregations) 50 (includes 34 aggregations) 46 (includes 30 aggregations)
Avg. Cost (per MW per Hour) $8.64 $8.29 $9.90 $8.66
Projected Cost $1,027,435.55 $330,856.62 $808,426.49 $4,195,055.47

As reported by ERCOT, the total projected year-to-date cost of EILS programs is $10.87 million. EILS resources are paid as bid if selected and are dispatched through Verbal Dispatch Instruction to Qualified Scheduling Entities where participants must have their interruptible load available during at least 95% of the hours in their committed time periods. The Commission rule allows up to $50 million in annual (February through January) EILS program costs, however, it is completely up to ERCOT to reject offers that may not look reasonable or economical. For more information on EILS program and other related documents see the ERCOT EILS web page.

See APX Experts in Upcoming Power and Environmental Market Events

APX Experts are actively covering different power and environmental markets issues in several conferences and workshops. The followings may be of interest to you:

  • June 23, 2009
    32nd International Association for Energy Economics (IAEE) International Conference, "Energy, Economy, Environment: The Global View."
    San Francisco, CA - Grand Hyatt Hotel
    Session Chair - Dr. Parviz Adib, Director, presiding a session entitled: Alternative Paths to Achieving Environmental Goals
    http://www.usaee.org/USAEE2009/

  • June 24, 2009
    32nd International Association for Energy Economics (IAEE) International Conference, "Energy, Economy, Environment: The Global View."
    San Francisco, CA - Grand Hyatt Hotel
    Speakers - Dr. Reiner Musier, Chief Marketing Officer and Dr. Parviz Adib, Director, presenting a paper on The Role of Technology in Markets for Environmental Tradable Permits
    http://www.usaee.org/USAEE2009/

If interested, you can find about this and other events by going through APX website.

About APX, Inc.
APX provides technology, strategic consulting, and expert operational services to assist wholesale power market participants reduce costs and improve performance in power scheduling, settlement, market operations, and demand response programs. Clients include utilities, merchant companies, financial institutions, retail service providers, ISOs/RTOs, and other electricity market participants.

APX is also the leading infrastructure provider for environmental and energy markets in renewable energy and greenhouse gases including carbon commodities. Providing a bank and mint for environmental commodities, APX solutions are trusted to create, track, manage, and retire renewable energy certificates (RECs), energy efficiency and conservation certificates, carbon offset credits such as verified emissions reductions (VERs), and greenhouse gas emission allowances.

More information is available at www.apx.com or contact us at 408.517.2100.