Update on short term market improvements
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Update on Short-Term Market Improvements. ERCOT Wholesale Market Subcommittee June 18, 2003. Outline. Solutions to current issues Current Status update Suggested Next Action Item. Issues being resolved. Removing Category 4 Deployments (PRR424) Resolving Resource Oscillation

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Update on Short-Term Market Improvements

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Update on short term market improvements

Update on Short-Term Market Improvements

ERCOT Wholesale Market Subcommittee

June 18, 2003


Outline

Outline

  • Solutions to current issues

  • Current Status update

  • Suggested Next Action Item


Issues being resolved

Issues being resolved

Removing Category 4 Deployments (PRR424)

Resolving Resource Oscillation

Improving Portfolio Allocation

Clear BES closer to Real Time

Improving Replacement Reserve Market Procurement (PRR413)


Current stage removing category 4 deployments

Current Stage: Removing Category 4 Deployments

PRR424 for removing Category 4 Deployments has been filed with urgent status requested

Project Request for PRR424 has been submitted

In parallel, ERCOT is working with vendor on preliminary project requirement

ERCOT is waiting for WMS/PRS/TAC/Board Approval of PRR424 to officially kick off this project

The project can be finished in 3-6 months depending on PRR approval process and project priority


Current stage resolving resource oscillation

Current Stage: Resolving Resource Oscillation

  • Resources used to resolve local congestion may oscillate between intervals

  • ERCOT is working on a project to resolve this issue

    • Currently, SCADA value is used to determine the estimated Resource Output Level

    • Improvement: Incorporate the consideration of previous Resource Specific Deployment Instructions


Current stage clear bes closer to real time

Current Stage: Clear BES Closer to Real Time

Currently, Balancing Energy Service is cleared approximately 20 minutes prior to the start of the target interval

ERCOT is in the final stages of testing changes that will allow the clearing to occur approximately 14 minutes prior to the start of the target interval


Current stage replacement reserve market improvement

Current Stage:Replacement Reserve Market Improvement

Currently, the Replacement Reserve Market Procurement Process is optimized independently for each hour

ERCOT filed PRR413 to optimize the Replacement Reserve Procurement Process on daily basis by considering interrelationship between hours

At the same time, a Project Request has been submitted


Suggested next action item local deployment w o market solution

Suggested Next Action Item:Local Deployment w/o Market Solution

Market Solution Statistics from 12/23/2002 to 5/31/2002

Over 90% of Category 2 and 3 deployments, market solution does not exist

Category 4 will be removed by PRR424

Currently, deployment is based on premium bid while settlement is often based on generic cost

Give over 90% of time there is no market solution, should we continue this process?


Suggested next action item

Suggested Next Action Item:

What should we work on next?


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