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Demand Integration Update to DSWGERCOT Emergency Responsive Service (ERS)
Report to the Public Utility Commission of Texas for the 2013 ERS Program Year
Project No. 27706
Attachment B
Contents
04/20/23 ERS Annual Report2
Procurement Summary• Capacity (MW) offered and procured• Number & Average Size of ERS-10 Resources• Cumulative Individual Sites Participating in ERS-10
Suspensions Due to Availability or Load Test Failures
Settlement Summary
Detailed procurement results by Standard Contract Term
Fleet Level Summary for January 6, 2014 EEA Event
Standard Contract Terms & Time Periods
04/20/23 ERS Annual Report3
ERS is procured 3 times annually for 4-month Standard Contract Terms• February through May• June through September• October through January
Participants may offer to provide ERS for one or more Time Periods:• Business Hours 1: 8AM to 1PM Monday-Friday* • Business Hours 2: 1PM to 4PM Monday-Friday* • Business Hours 3: 4PM to 8PM Monday-Friday* • Non-Business Hours: All other hours
*Except ERCOT Holidays
Time Periods are designed to allow flexibility for customers during traditional business hours
Time Periods have been in effect in current form since the June-September 2008 EILS Contract Period
ERS-10 Capacity Procurement Trends (Business Hours 1)
04/20/23 ERS Annual Report4
ERS-10 Capacity Procurement Trends (Business Hours 2)
04/20/23 ERS Annual Report5
ERS-10 Capacity Procurement Trends (Business Hours 3)
04/20/23 ERS Annual Report6
ERS-10 Capacity Procurement Trends (Non-Business Hours)
04/20/23 ERS Annual Report7
Procurement Trends (number & avg. size of Resources)
04/20/23 ERS Annual Report8
Cumulative Individual Sites Participation
04/20/23 ERS Annual Report9
Suspension History
04/20/23 ERS Annual Report10
ERS Resources suspended during the 2013 program year due to availability failures, two consecutive load test failures, or event failures
• Suspended Resources may regain eligibility only after submitting a corrective action plan and successfully completing a load-shed test administered by ERCOT
Settlement Summary
04/20/23 ERS Annual Report11
*Adjustments may be made for the following reasons: availability, event performance, disputes, data corrections.
Standard Contract
Term
Projected cost based on procurement
Initial Cost* Final Cost* Final % of original
FebMay11 7,703,107.30$ 6,581,603.30$ 6,643,557.73$ 86.2%AprMay11 1,110,406.64$ 1,091,783.88$ 1,091,783.88$ 98.3%JunSep11 7,748,302.46$ 6,780,901.29$ 6,780,901.29$ 87.5%
Oct 11Jan12 8,731,702.58$ 8,364,694.14$ 8,364,694.14$ 95.8%Total 2011 25,293,518.97$ 22,818,982.61$ 22,880,937.04$ 90.5%FebMay12 $8,903,726.90 8,903,726.90$ 8,832,429.67$ 99.2%JunSep12 $11,621,720.72 11,278,038.52$ 11,278,038.52$ 97.0%
Oct12Jan13 $10,246,067.12 10,245,657.90$ 10,245,657.90$ 100.0%Total 2012 30,771,514.74$ 30,427,423.32$ 30,356,126.09$ 98.7%FebMay13 9,646,584.83$ 9,617,304.07$ 9,617,304.07$ 99.7%JunSep13 12,042,160.83$ 12,042,160.85$ N/A
Oct13Jan14 12,744,451.58$ N/ATotal 2013 34,433,197.24$ N/A N/A N/A
Demand Integration Update to DSWG
2013 Results by Standard Contract Term
February-May 2013 Standard Contract Term
04/20/23 ERS Annual Report13
Total Adjusted Cost for this Standard Contract Term: $ 9,617,304.07
June-September 2013 Standard Contract Term
04/20/23 ERS Annual Report14
Total Adjusted Cost for this Standard Contract Term: $ 12,042,160.85
October 2013-January 2014 Standard Contract Term
04/20/23 ERS Annual Report15
Total Projected Cost for this Standard Contract Term: $ 12,744,451.58
Demand Integration Update to DSWG
Summary for January 6, 2014 EEA Event
January 6, 2014 EEA Event Timeline
04/20/23 ERS Annual Report17
7:07:27 VDI-Deploy
All ERS 10 minute Resources were issued a simultaneous verbal deployment instruction (495.72 MW, 398 Resources, 649 Sites)
7:53:16 VDI-Recall All ERS 10 Resources were issued simultaneous verbal recall instruction
Time sequence on January 6, 2014 Deployment Event for ERS-10
Fleet Level Performance for 1/6/2014 Event
04/20/23ERS Annual
Report18
• Graph is based on 15-minute interval data. • Performance is based on a prorated obligation for the 1st partial interval and one full interval. • 1 Resource had prescheduled unavailability from HE0900 - 1600 on the day of the event (14.6 MWs)
04/20/23 ERS Annual Report19
This document is provided for informational purposes only. Procurement and settlement data are subject to revision.