Presentation on theme: "QSE Managers Working Group Meeting Notes 9 April, 2010 Report to WMS 21 April, 2010 David Detelich - Chairperson."— Presentation transcript:
QSE Managers Working Group Meeting Notes 9 April, 2010 Report to WMS 21 April, 2010 David Detelich - Chairperson
QMWG Topics Offering Reliability Must Run (RMR) Units into the Nodal Market (Possible vote) Wind-powered Generation Resource Production Potential (WGRPP) Forecast Accuracy Load Forecast Accuracy PRR848, Allow ERCOT Option to Cancel RPRS Capacity Commitments (Possible vote)
QMWG Topics cont. NPRR216, Allow ERCOT Option to Cancel Commitments Previously Issued Through RUC (Possible vote) NPRR210, Wind Forecasting Change to P50, Synchronization with PRR841 (Possible vote) Nodal: Offering Duct Burner capacity (Update) 2011 Ancillary Service Methodology
Nodal Reliability Must-Run (RMR) Offers ERCOT Action Item: Produce Whitepaper on subject – not completed ERCOT is discussing internally the topic of how to offer the RMR units in DAM and RUC Market Participants would like to be a part of that discussion Recommend discussing at next QMWG meeting.
Market Impacts of RMR Offers Offered in DAM; struck in DAM Price convergence How does a higher cost in offers affect that Offered in DAM; struck in RUC Not offered in DAM; struck in RUC Higher prices for load at the congested node May impact adjacent nodes as well
Nodal Settlement of RMR Slide provided by ERCOT
WGRPP Forecast Accuracy Discussion of Analysis Requirements Discussion of Change to P50 April data should show adoption of change Discussion of MET data PRR811 implementation continues
Load Forecast Accuracy Reviewed report from Potomac Economics available from their website. Forecast error MW in 4 hour intervals Visualize the bias over peak hours
PRR848, Allow ERCOT Option to Cancel RPRS Capacity Commitments This PRR does not include compensation Spent fuel Opportunity costs RPRS procurements are being reduced by the application of the new A/S procurement methodology NSRS Net Load error QMWG recommends rejection
NPRR216, Allow ERCOT Option to Cancel Commitments Previously Issued Through RUC QMWG supports concept with discussion request on the payments to the generators. Allows ERCOT to run commitment studies the way a utility would where they can commit or decommit units. Adds another incentive for resources to participate in the Day Ahead Market. Would want to see evidence that the savings to the market outweigh the costs to the generators, uncompensated costs.
NPRR216 QMWG Recommendation QMWG feels a holistic approach is needed to the problem of managing the reserves required on the system. Currently the issue is being addressed in various stakeholder venues. QMWG proposes to compare the current solution proposals for managing uncertainty. delaying commitment, (NRG proposal) AS methodology Recommend that the NPRR be remanded to WMS.
NPRR210, Wind Forecasting Change to P50, Synchronization with PRR841 TAC voted to remand NPRR210 to PRS Morgan Stanley comments raises the concern that Wind-powered Generation Resources (WGRs) may sell capacity not committed in Day-Ahead could result in insufficient capacity when wind production is below the forecast Could require ERCOT to commit additional units. WMS Action (Vote)
Nodal: Offering Duct Burner capacity Questions received from: Brazos Electric Cooperative EDF Trading Duct burner capacity raises utilization and performance questions not addressed by the Nodal Market Design: Could take more than 5 minutes to ramp in Temperature sensitivity changes the point that duct burner capacity is added and ramp rate changes
2011 Ancillary Service Methodology Market Participants request that ERCOT map out the process for updating the A/S methodology. Issues that ERCOT should evaluate and address: Quantity of A/S required at start of Nodal market How to step to the steady state quantities after Nodal go live Develop Net Load Risk values specific for each day Improvements on the NSRS quantity determination.
Next meeting Next Meeting: May 4, 2010 Topics Wind generation forecast accuracy calculations Load Forecasting Accuracy Nodal Reliability Must-Run (RMR): ERCOT Created Three-Part Supply Offer Nodal: Offering Duct Burner capacity 2011 Ancillary Service Methodology GREDP and other metrics calculations